Ask HN: Who is hiring? (May 2025)

Drone startup | Product Engineer (Typescript) | 1 day/week in the office (London, UK) | Citizens of the UNITED KINGDOM only

You'd be working with engineers who previously worked at Google, Amazon, Helsing, Darktrace and an F1 team. We build drones (software and hardware)

We're looking for engineers that straddle real world problems, and use technology as a solution. We prefer personal projects or relevant hobbies, not hard leetcode questions. We value collaboration: pair programming, discussing, teaching and learning from others. We're looking for mission-driven engineers. People who see problems in the world and want to help solve them.

You'd be working with me to build the most intuitive, performant, and modern mission planning and flight monitoring software for drones, and related applications (tools for drone design and manufacturing). For my project, we use React, Tailwind, Node, drizzle-orm, Postgres, SQLite, deck.gl, Python, FastAPI, asyncio, and more. You're allowed (and compensated) to use AI services.

Because we are a small team, you will be noticed and rewarded for performance.

*Please don’t apply if any of these resonate:*

• You prefer narrow ownership—“I only touch the backend or the code I've written”.

• You think it's more about "who you know, not what you know".

• You haven’t actively learned a new tool or hobby in the last year.

If interested, email my temporary email: hn-may25@mail.orth.uk with your CV and some personalised information about why you'd be the right fit.

My personal website, if you want to know who you would work with: tlduck.com

Exa Labs Inc. | Onsite San Francisco, CA | Full time | Multiple Roles Exa is a search engine built for AIs. We enable developers to filter the internet's content with complex queries, bringing the world's knowledge into their AI apps.

Please apply here https://exa.ai/careers

•Full Stack Engineer

•Backend Engineer

•ML Research Engineer

•Designer

•Growth Lead

•Solutions Engineer

•Account Executive

RareBetSports | Fullstack Developer | US/Europe | Contract | Remote

RareBetSports is a Daily Fantasy Sports platform seeking a talented Full Stack contractor who is experienced in working on large scale distributed systems. This role will focus on coding in Node.js based framework, as well as Express.js and Nest.js.

RareBetSports launched in a beta capacity less than 2 months ago and have since: - Onboarded over 250K unique users - Facilitated over 397K Bets in total

Check out our app here: https://rarelink.rarebetsports.io/

What you will be doing: - Maintaining a Web3 backend and integrating with various wallets and smart contracts - Building a realtime update system that react app will use to display sports results - Building a complex system that will handle synchronization between offchain and onchain data - Integrating sports data from third party providers to our Oracle

We’re looking for someone who has: - Typescript experience - 5+ Node.js, Express.js and Nest.js - 5+ years of software engineering - 3+ years of web3 development experience - Strong familiarity with Linux/Terminal environments - CI/CD setup experience - Experience working in a contract capacity

Apply by emailing: b@rarebetsports.io

Navico | New Zealand | Hybrid (2-3 days on-site) | Full-time | https://www.navico.com/about-us

Open only to applicants already in New Zealand!

We're a leading marine electronics company developing our own hardware running an Android-based platform. We're also developing sensors and peripherals

This particular role is unusually vertical, dealing with everything from reading sensor data on CAN (C) and business logic (C++) to publishing data via an Android library (Kotlin). We dabble in CI (Android test instrumentation / Jenkins) and have a plethora of mini side projects. They actually make life in this team quite fun

In terms of tech stack, anything Android is what we're looking for, with the ability to go low level (C / C++). Understanding of networking and protocols is essential

You'll join a team of 4 unusually skewed on the senior side. We're pretty collaborative, so experience with pair or mob programming is welcome. Being keen on test automation is a plus. Oh, we're Linux friendly, while staying cross-platform in terms of development

We sometimes get to test on the water

Auckland based and quite flexible - you still have to be able to be on location if need be, though. Please apply only if you're already in NZ and willing to live in Auckland

For details contact daniel.taga@navicogroup.com

Brilliant.org | Software Engineer (Interactives) | Remote (North America), SF, NYC | Full-time | $145k — $220k | https://brilliant.org

Brilliant is building world-class interactive learning experiences that combine challenging problems, compelling narratives, and delightful visual storytelling.

We're hiring interactive engineers to help craft the next generation of interactive learning games and change how the world learns STEM.

Engineers at Brilliant think about both "building the right thing" AND "building the thing right" while pursuing high standards of excellence for ourselves, our product, and our codebase.

If you're energized by the prospect of doing the best work of your career and changing how the world learns alongside the most talented peers you've ever worked with, you can learn more and apply here: https://jobs.lever.co/brilliant/2e86ce40-3c7e-4924-b3cb-bfe7....

Broadn inc | broadn.io | part-time devops | Contract | Remote

We are hiring a DevOps to deploy and monitor an app in AWS GovCloud. US persons from US territory only please. 5-10 years managing cloud infra / cicd / security / backups / kms / app config.

Apply by emailing [hr] at our domain.

Smile ID | Software Engineer, AI/ML | Remote (US, Europe, Africa) | Full-time | https://usesmileid.com

We build Africa’s leading identity verification service, expanding access to secure financial services across the continent in a fast-growing market. We have built proprietary machine learning algorithms and a technology platform to cater for all skin tones, entry-level devices and low bandwidth. We perform 10M+ identity checks per month and are Series B funded with enough revenue to focus on getting to profitability.

The role - Deploy and optimize scalable full-stack ML serving applications across multiple frameworks (PyTorch, TensorFlow, vLLM) and using tech like FastAPI and NVIDIA Triton Inference Server - Build MLOps from the ground up, including data annotation, monitoring, and evaluation. - Fine-tune, optimize, and deploy multi-modal models, integrating LLMs with computer vision systems. - Integrate computer vision and other ML model results with the rest of the tech stack, including front-end web and mobile interfaces and back-end database services.

You - 5+ years professional experience in software engineering, with demonstrated experience working with large datasets, machine learning, and/or LLMs. - Proficient in Python. - Extensive experience with DevOps tools and practices, including CI/CD and containerization. - Experience with AWS technologies (such as S3, EC2, RDS, DynamoDB) or similar cloud platforms (Google Cloud or Azure).

Compensation: $160k-$210k + equity

If interested, please apply at https://wellfound.com/l/2AUVAy or email me directly at david@usesmileid.com.

Bond Studio AI |Software Engineer, AI | NYC or Remote | Full-time

Bond Studio transforms the physical world into a real-time 3D environment built for commerce. Our spatial engine leverages state of the art CV+AI tech and is already being used across industries – from boutique stores to Fortune 50 enterprises. We’re currently in stealth, have a team of ~18 engineers, and are backed by Tier 1 institutional investors.

We’re looking for a software engineer to own the creation, design, and maintenance of AI systems within our platform. You'll be at the forefront of applying breakthroughs in LLMs and spatial reasoning to real-world challenges transforming commerce. Join us in an environment that is fast-paced, has little technical debt, and utilizes the latest tech.

Interested? Email us at careers@bondstudio.ai

More about the role here: https://docs.google.com/document/d/1_dOTutdZJwrWc2RpN7z4ZtBe...

Akkio | Fully Remote | Full-time | Backend, Fullstack, and Data Engineers

Akkio is building an agentic AI platform to help media agencies leverage all of their data across the campaign lifecycle. Think AI-powered audience building, media mix modeling, campaign optimization, analysis and reporting.

Akkio only has 2 levels per role: non-Senior and Senior. Open roles:

* Backend - 110k-150k w/ equity. Traditional ML/AI and generative AI using Python, with an eye towards Go. https://www.akkio.com/jobs/backend-engineer

* Sr Backend - 150k-210k w/ equity. Same as Backend, but Senior. https://www.akkio.com/jobs/senior-backend-engineer

* Fullstack Web - 110k-150k w/ equity. Vue.js, Typescript, Node.js / Express, Firebase. Make a buitiful analytics user experience for marketing agencies' advertising and analytic functions. https://www.akkio.com/jobs/frontend-engineer

* Sr Fullstack Web - 150k-210k w/ equity. Same as Fullstack Web, but Senior. https://www.akkio.com/jobs/senior-frontend-engineer

* Sr Data Engineer - 150k-210k w/ equity. SQL is a must and python & dbt are bonuses. https://www.akkio.com/jobs/senior-data-engineer

All candidates must be authorized to work in the US and have overlap with a continental US timezone

Tram Case | Hiring Backend, Fullstack & AI Engineers | Remote (LATAM)(Spanish & English required) Hello! — we’re building AI-powered tools to help law firms work faster, smarter, and with less busywork.

Our first module is an AI call center that transcribes and classifies calls to help teams prioritize urgent cases. But that’s just one part — we’re building an end-to-end platform that automates the entire case lifecycle, from intake to resolution.

We’re a small, senior team based in LATAM. You’ll be working directly with the founders and building features from scratch. No layers of approval, no legacy code — just thoughtful product work, shipped fast.

If you're excited about solving real problems, working closely with strong engineers, and being part of something early (but real), we’d love to hear from you.

Our tech stack is : Python, Javascript/typescript

Apply here: https://tramcase.na.teamtailor.com/

more info about us on: tramcase.com

We are a virtual trucking carrier that works to help drivers make more money, safely and efficiently. We are a very well funded, Series A startup that has been seeing solid growth year over year. We have a lot of high prio roles open at CloudTrucks (please check out our LI post for all the roles and apply to them directly, if they interest you!) - https://www.linkedin.com/posts/cloudtrucks_join-the-cloudtru...

I also want to highlight the senior eng roles for our Marketplace (https://lnkd.in/gvekcNYG) and Financial (https://lnkd.in/gntNWJXQ) products engineering teams.

Imbue [https://imbue.com] | Senior Product Engineers | San Francisco (ONSITE) | Full-time

Imbue is building a coding agent environment (https://imbue.com/product/sculptor/) that imbues engineering wisdom into LLM workflows—so anyone has the power to create software they can trust.

We aim to rekindle the dream of personal computing and make software creation accessible to all, so every person can have the power to shape their computational future.

For more example projects and benefits, see the full job description: https://imbue.com/careers

Please apply through the website above. All submissions are reviewed by a real person!

MONUMENTAL | https://www.monumental.co/ | Amsterdam, The Netherlands | Full Time | Onsite

We’re creating robots that autonomously construct buildings. We design all of our hardware and software in-house in central Amsterdam, starting with autonomous bricklaying robots.

Building a robot like this means solving all sorts of interesting challenges: figuring out the robot's position with sub-mm precision; navigating autonomously around the building site; automating measurement and calibration of new robots; lots of distributed systems and so on.

Our robots are now continuously deployed on customer sites and we are earning real money as a masonry contractor. The full team is more than 50 people and we're growing rapidly to meet demand.

Our stack is mostly: Rust, TypeScript, Python, NixOS.

Some open roles:

- Software Engineer, Controls

- Software Engineer, Machine Vision

- Assembly/manufacturing technicians and robot operators

https://www.monumental.co/jobs

P.S. We're always on the lookout for very strong generalist engineers who can operate at any layer of the stack (firmware, networking, UI, application code - whatever's needed!) Drop me an email if this sounds like you.

Vibrant (https://www.vibrantpractice.com) | Founding Design Engineer | Full-Time | Remote (US-only)

We're building Cursor for doctors. At Vibrant, we've picked the expensive, high-touch, data-heavy subspecialties of functional, integrative, and longevity medicine, and we've created AI agents that reduce hours of clinical work to minutes.

We're a world-class team of health tech founders, AI builders, and physicians from companies like Meta, Stride Health, Parsley Health, Truepill, and others. In just five months, we've built notetaking/scribing, Clinical Decision Support, and some of the integrations a clinician needs to run their practice with Vibrant as their AI Operating System.

In words of our customers: "I have goosebumps, this is really incredible. Very accurate." "Seeing the patient overview AI-generated summary come to life after placing a couple notes is AMAZING. I'm losing it over here" Our stack: Typescript, React, NextJS, React Native, Expo, and custom AI agents, RAG, tools, and agentic workflows.

We're looking for folks who ship fast and are curious and resourceful. If that's you, shoot me an email at pedro [at] vibrantpractice.com or just book an intro with me: https://book.vimcal.com/p/pedro/hn-15-minute-chat-with-pedro...

Apple | Software Engineer | ONSITE, Full-time, San Diego, CA

We are looking for an enthusiastic software engineer with experience in cloud technologies who can build tools to process data for ML algorithm teams. You will work directly with ML engineers to integrate their workflows into reusable data processing solutions. Our team specifically offers a small, collaborative atmosphere where engineers work together to improve internal tooling.

A sample of the technologies we use: Python, Airflow, Temporal, TypeScript, Kotlin

Job posting: https://jobs.apple.com/en-us/details/200602576/backend-engin...

For any specific questions, reach out at mlt-hiring [at] group.apple.com

DuckDuckGo | Multiple Roles | Remote | Full-time | $178.5k + equity

We are looking for candidates that are excited to join us on a mission to raise the standard of trust online. All of our roles are fully-remote, except where specific locations are noted.

Senior Software Engineer, Windows Desktop App - $178,500 USD + equity — https://jobs.ashbyhq.com/duck-duck-go/47e569c6-f995-4955-a89...

Senior Android Engineer - - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/57eea673-2519-4afc-a9a...

Senior Backend Engineer - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/abb953ee-5bb7-4637-9f6...

https://duckduckgo.com/careers

NowSecure | Senior DevOps Engineer | US Remote | Full-time

We are leading in cutting edge mobile security and sponsor a number of open-source tools such as radare (https://github.com/radare/radare2) and Frida (https://github.com/frida/) that are widely used by security researchers. Unfortunately we can’t offer sponsorship at this time and candidates must be located in the continental US. We are looking to fill a senior devops position.

When applying please put in you found this on Hacker News!

=========== What we are looking for ===========

- You've done Kubernetes the hard way - or better yet, you know what it is, but you've spent more time working with Kubernetes in production than reading about it.

- You have development experience. We write code on top of the Kubernetes API so being able to dive deep into code is extremely valuable!

https://nowsecure.applytojob.com/apply/oiwPgGyOoR/Senior-Pla...

FusionAuth | Senior Security Engineer, others | Denver, CO, USA ONSITE (other positions are remote as) | Salaries listed on job req, but for the Security Engineer it is 140k-120k

Our mission is to make authentication and authorization simple and secure for every developer building web and mobile applications. We want devs to stop worrying about auth and focus on building something awesome.

There are a lot of companies in the auth space, but we feel like we have something special:

* a unique deployment model (self-host on-prem or in your cloud or run in our cloud)

* A well designed API first approach; one customer compared our app to petrichor

* a relatively mature product (the code base is over eight years old and we've found and fixed a lot of the sharp edges around core login use cases; however there are plenty more features to add)

* founder-led; the CEO is an engineer who still writes code

* a full featured free-as-in-beer version that makes the sales cycle easier; prospects often come in having prototyped an integration already

If you are passionate about technology and want to join a company moving the industry forward, FusionAuth might be a great fit for you. As mentioned, our core software is commercial with a "free as in beer" version. We also open source much of our supporting infrastructure.

We are profitable but raised a round in 2023 to accelerate our growth (more on that here: https://fusionauth.io/blog/fusionauth-funding ).

Technologies and standards that we use or implement: Modern Java, MySQL, PostgreSQL, Docker, Kubernetes, OAuth, SAML, OIDC.

Learn more, including about benefits and salaries, and apply here: https://fusionauth.io/careers/

Click/tap the 'View open positions' orange button.

Blueberry Pediatrics | Full-stack Senior or Staff Engineer | REMOTE (US only)

American healthcare is seldom affordable, accessible, or high-quality. We are fixing this for pediatrics. Blueberry is the most affordable option amongst our competitors. We practice the highest quality pediatric telemedicine, as evidenced by our exclusive hiring of board-certified pediatricians and the usage of at-home medical kits. And, we’re accessible 24 hours a day.

Our success is shown in the lives we save, the costs we save our insurers, and our exploding B2B and D2C business.

As you can imagine, pulling off affordable high-quality healthcare is a challenge. It requires a lot of engineering ingenuity, a C-suite aligned with positive patient outcomes above short-term profits, and a great product team.

We use Django, Hotwire Turbo (an HTMX-like framework), Pytorch, Sklearn, and Flutter. Experience in these technologies helps, but what’s more important is general full-stack knowledge, curiosity, and a strong work ethic.

Full-stack Senior engineer: https://jobs.ashbyhq.com/blueberrypediatrics/dc8108f3-34ed-4...

Our homepage: https://blueberrypediatrics.com/

Our engineering blog: https://engineering.blueberrypediatrics.blog/

Beacon AI | beaconai.co | San Carlos, CA | Full-Time | Hybrid

Ever dream of building the cockpit tech of the future? At Beacon AI, we’re creating what we like to call an R2-D2 for pilots. We are building intelligent, real-time technology for flight decks to make aviation safer, more efficient, and more accessible for both commercial and defense sectors. If preventing accidents like the recent ones resonates, we are a mission-driven company on a mission to make flight safer and more efficient.

We're fresh off signing new contracts with key defense and commercial players and a Series A in Q3 of 2024. We’re backed by leading VCs like Costanoa, Scout, Sam Altman, and JetBlue Ventures. With increasing customer demand, our engineering team is expanding to meet it.

Current Opportunities:

* Autonomy & Robotics (Staff Eng & Eng Manager)

* Backend, iOS, Cloud Infra, Frontend (Senior/Staff Engs)

* Senior/Staff TPM (Software) + Senior TPM (Federal Programs)

We'd love to hear from you if you’re excited to push the envelope in aviation tech. Apply directly at https://beaconai.co/careers and mention you found this post on HN. Let’s revolutionize flight together!

Topaz Labs | Engineers + Researchers + Product + Sales | ONSITE in Dallas, TX | Full-Time | 130-250k + equity

Topaz Labs (AI photo and video enhancement software) bootstrapped from zero to $48m in revenue most recently in 2024. We’re hiring for software engineers, PhD generative photo / video researchers, product managers, ops / support, AEs

Stack: C++ / Python

Customers: NASA / Nvidia / Apple / Google / Tesla (1.5m total users)

(If you send me a personal email, please make the subject line your favorite vacation spot so I can weed out spam.)

Check out our openings at https://www.topazlabs.com/careers

Contact: https://www.linkedin.com/in/russdrivessaabs/ ||| russell.pompea@topazlabs.com

SmarterDx | 150-250k+ + equity + benefits | Remote (US only) | Multiple roles | https://smarterdx.com/careers

We build clinical AI that empowers hospitals to analyze the complete record of every patient to fully capture the value of care delivered. Founded by physicians in 2020, our proprietary AI platform understands the nuances of clinical reasoning, enabling hospitals to true the patient record for every discharge. By doing so, hospitals can recover millions in earned revenue, enhance care quality metrics, and optimize healthcare operations. The current team is very high functioning (MD + data scientist combos, former ASF board member, Google and Amazon engineers, Stanford LLM researchers, etc.) and initially scaled the company to $1MM+ in contracted revenue without raising capital.

We have been backed by top investors including Floodgate (Lyft, Twitch, Twitter), Transformation Capital, and Bessemer for a total of $71mil, including our $50mil Series B announced in May 2024, and are experiencing an incredible growth trajectory customer and revenue wise with no signs of slowing down! This time last year, we were at 55 employees, and are above 175 as of today!

We are looking for: Staff and Senior SWEs, Full Stack and Backend focused - Data Scientists - ML Research Scientists - More!

We have PMF, and it's time to scale! For more and to apply, see https://smarterdx.com/careers

Uncountable | NY, SF, London & Munich (In-Person) | Full-Stack Engineering, Generative AI Engineering & Devops https://www.uncountable.com/hiring/hn Uncountable accelerates R&D for industrial scientists across leading materials, chemicals, and life sciences organizations. With our SaaS solution, our customers get better products to the market in half the time. Uncountable was founded by MIT and Stanford engineers and has been profitable since 2016. Our team has grown from 30 to 70 over the last two years.

Full-Stack, Generative AI, & Devops Engineers | $120k - $220k + Equity

---> Uncountable is looking for engineers who can spearhead the development of the Uncountable Web Platform. The position is heavily product-driven and comes with challenges across the stack.

--> Summer internships and working student positions are also available.

Learn more: https://www.uncountable.com/hiring/hn

Uncountable is hiring in New York City, San Francisco, London, and Munich.

Contact our CTO directly at jason@uncountable.com

PlantingSpace | Full-time | Remote (EU time zone) with quarterly meet-ups | https://planting.space

We’re building an AI system for analysts and scientists, based on a fundamentally new approach to reasoning and knowledge representation. Our approach goes beyond state-of-the-art LLMs by combining algorithms symbolically, to provide novel capabilities like performing multi-step analysis, displaying a verifiable reasoning path, and assessing uncertainty. We envision applications supporting and automating analysis and research in domains such as Finance, Strategy Consulting, Engineering, Material Sciences, and more.

Want to contribute to cutting-edge work in AI? We’re looking for:

* Senior Program Synthesis Engineers

* Senior NLP Engineers

* Finance & Operations Manager

* Technical Project Manager

Curious about what we’re up to? Check out our openings & apply: https://planting.space/joinus/

Learn more about our approach: https://planting.space/examples/

If you have any questions, email us at: talent@planting.space

Fathom - AI Notetaker | REMOTE (must work US hours) | Full time | https://fathom.video

We make the number one AI Notetaker and are hiring across the stack (rails/typescript/go/k8s/gcp).

About Fathom: • YC W'21, raised Series A this summer, ~50 employees • Growing 10-20% every month (ARR + Usage) • 82 NPS, #1 app on both G2 + Zoom marketplace, 10k+ installs on HubSpot marketplace

Team makeup + culture: • Low ego, high integrity, highly collaborative, hard working • Senior team (10 eng), many have worked together at previous companies • Remote but synchronous. Multiple team offsites per year

This IS for you if: • You want to work on a product people love • You like highly talented, experienced coworkers • You prefer working hard and making pragmatic decisions that keep the team shipping quickly

This is NOT for you if: • You want rest & vest • Sprint planning is your favorite • You being right is more important than the team being right

If interested, apply for roles here. Mention you’ve come from HN in the application!

Apply here → https://jobs.ashbyhq.com/fathom.video

Stream (https://getstream.io) | Multiple Positions | Amsterdam (NL), Skopje (Macedonia) | Remote possible | Full Time | Visa Sponsorship

We are consistently hiring backend engineers ranging from Senior level to Staff / Lead / Director / Principal Go engineers. If you have experience with a different tech stack, we offer a 10-week onboarding program to train you in Go, scaling and other key topics: https://tinyurl.com/2u5x9f9w

We’re also hiring for:

* Director of Information Security

* Design Engineer

* Staff Android SDK Engineer

* Developer Relations Engineer

* DevOps Engineer

* WebRTC SFU Engineer

At Stream, we use Go for our video SFU, chat API, Moderation and Feeds, serving high traffic from major apps like Strava, Nextdoor, Patreon, and Midjourney. Our tech stack: Go, CockroachDB, RocksDB, WebRTC, Raft, and Redis.

Why Join Stream?

* High scale/ difficult engineering, we have customers using our products with millions of users

* Default alive. Startup growth opportunity with healthy revenue

* All managers are hands-on and capable engineers

* Edge network of servers around the world

* Great opportunity to learn and grow

Remote: our roles are primarily NL-based (hybrid), but exemptions for remote work within the EU may apply to specific cases

Visa Sponsorship: Available for the Netherlands

Apply here: https://jobs.ashbyhq.com/stream?utm_source=5rrpvObp3r

Monad Foundation | REMOTE | Full-Time | https://www.monad.xyz/

Monad raised $225M in series A funding to scale our team in bringing the Monad blockchain to production.

The Monad Foundation is a team of dedicated ecosystem and community builders who are on a mission to massively grow the impact of decentralized tech. We believe that the Monad blockchain--the performant and parallel EVM Layer 1--will help decentralized apps eat the world. Having launched devnet in 2024 and testnet in Feb 2025, we are looking to scale our efforts towards mainnet.

We are hiring for the following roles:

1. Head of Security: https://jobs.ashbyhq.com/monad.foundation/060b9702-f299-4967... 2. Senior Full-Stack Engineer (web3): https://jobs.ashbyhq.com/monad.foundation/2242c712-d2cf-4fe5... 3. Senior DevRel Engineer: https://jobs.ashbyhq.com/monad.foundation/a336bca8-13e1-4558...

Careers page here: https://jobs.ashbyhq.com/monad.foundation

Corner Health (https://cornerhealth.com) | Full-Stack Engineer | Onsite, Full-time, Santa Monica, CA

We're a seed-stage healthcare tech startup on a mission to empower Nurse Practitioners to establish and run their own primary care practices. To do so, we're building a suite of software that eliminates administrative burden with modern tech and AI, allowing NPs to focus on patient care. We use TypeScript, Node.js, React, and GraphQL.

We're hiring our second engineer to work alongside our founding engineer and co-founders. You'll integrate multiple external systems (payment processing, insurance eligibility, etc.), build internal tools accelerated by AI, and have real ownership over core parts of the product. Most important characteristics are high agency, pragmatism, and curiosity. You should be comfortable moving fast while setting up systems that can scale.

We've raised $7.5M from First Round Capital, Homebrew, and founders of DoorDash, Clover Health, and more. We're expanding to 3 states this year, have a waitlist of NPs interested in joining our platform, and are the fastest growing primary care network in Arizona.

If interested, please complete this form: https://imt1034gmfe.typeform.com/to/TiH3bhhL

Cassi | Founding Engineer - Frontend | Hybrid NYC or Remote | Full-time | $150-200k + equity

We’re building an AI-powered home manager: a proactive, chat-first system that helps homeowners stay ahead of bills, maintenance, documents, and expenses.

We're backed by founders of Freshly ($1.5B), Kustomer ($1B), and more.

What we're building:

- Structured parsing of home docs (insurance, warranties, bills)

- Personalized maintenance schedules

- Expense tracking with home-specific insights

- Natural language interface

- Embedded payments + smart renewal workflows

You’ll:

- Lead development of user-facing features with React, TypeScript, CSS

- Build elegant UIs for AI-driven workflows

- Design new UI paradigms for LLM-powered assistants

- Own frontend architecture and contribute to product strategy

- Optimize for responsiveness, performance, accessibility

Requirements:

- 3+ years experience in frontend development

- Strong with React, TypeScript, modern CSS

- UX focus with portfolio of polished, intuitive interfaces

- Experience with design systems and collaborating closely with product/design

Bonus:

- Experience with LLMs or AI interfaces

- Background in productivity tools or intelligent assistants

Contact: panat@cassihome.com

Mention you found us on HN! We’re also hiring for product manager, full-stack, and ML roles.

CrazyGames | https://about.crazygames.com/ | REMOTE (in Europe) | Full-time | Multiple roles

With recent technologies such as WebGPU and WebAssembly, the browser is quickly becoming a powerful gaming platform. High-quality 3D graphics and near-native level performance are becoming possible without the need for downloads, apps, or platform-specific development. Our browser games platform is already reaching more than 40 million people per month. We are self-funded, profitable, remote-first, and fast-growing.

We are currently looking for multiple people to bring our product, engineering, and marketing to the next level.

Please note that we're looking for people who can work on a European timezone and are ideally based in Europe (which includes the UK for those in doubt).

* Product Engineer: https://crazygames.recruitee.com/o/remote-product-engineer-b

* Senior Frontend Engineer: https://crazygames.recruitee.com/o/remote-senior-front-end-e...

* Mobile App Developer (iOS focus): https://crazygames.recruitee.com/o/remote-product-engineer-2...

* VP of Marketing: https://crazygames.recruitee.com/o/vp-marketing

* Programmatic Manager: https://crazygames.recruitee.com/o/programmatic-manager

* Web Games Advocate: https://crazygames.recruitee.com/o/remote-web-games-advocate

Delfina [https://delfina.com] | Software engineers (data/backend) | ONSITE (hybrid) | SF

Delfina provides a leading pregnancy care data platform to improve maternal and child health outcomes. Our motivating challenge is the fact that in the United States, healthcare outcomes for pregnancy are significantly worse than in other similarly developed countries. We believe our technology-enabled solutions will help doctors better scale to better use data and in the end, deliver better care to their patients. We are looking for people who believe in our mission to join our team!

We are looking for both junior and mid level backend software engineers. It will help if you experience with: Python, Postgres, GCP, Beam, Spark, dbt, BigQuery, or similar Experience in healthtech, pregnancy care, machine learning, and design are all valuable as well.

Find the posting here, which include some details on comp & benefits:

https://www.delfina.com/careers

Stainless | Engineers, EMs, Former Founders, GTM, Business, more | NYC & SF ONSITE | Full-time

Stainless is building the platform for high-quality, easy-to-use APIs.

When you `npm install openai` or `pip install anthropic` or `go get …cloudflare`, for example, you’re downloading code that we generated.

We’re ~3y old, ~25 people, have strong revenue, several years of runway, and great customers (including OpenAI, Anthropic, and Cloudflare). We’re backed by Sequoia & a16z.

As one of our first 20 engineers, you’ll get autonomy to build great products, skilled peers, opportunity for tremendous impact, and competitive salary, benefits, and equity.

We’re looking for exceptionally productive, thoughtful, tasteful, and kind people with a passion for making software development better for everyone.

Want to build the future of API tooling? See more at stainlessapi.com/jobs

Teleport (YC S15) | Backend and Fullstack Engineers | US, Toronto, London, Remote OK | https://goteleport.com

Do you enjoy building security and deployment tools for other engineers? Join us to hack on https://github.com/gravitational/teleport. Most of our code is Go, we have very little technical debt, our codebase is clean and small.

If you are a backend or fullstack engineer, we expect you to be comfortable with the following:

  * Go for backend and Go+TypeScript for fullstack engineers.
  * Linux, networking, and security.
  * Scalability and/or security experience for systems software is welcome.

We're looking for senior engineers to join the Teleport team. Teleport is a company started by engineers to build products for engineers. We are a stable and growing company.

We offer:

  * Competitive salary and equity.
  * 401k with company match.
  * Excellent health insurance.

Apply: https://jobs.lever.co/teleport

What to expect once you apply:

  * You will join a 30 minute intro call and we will walk you through compensation, the interview process, and requirements.
  * You join a private Slack channel and submit a coding challenge in Go (backend) or Go+TypeScript (fullstack) depending on the position using Github.

Friendly Captcha | Software Engineer | REMOTE within EU | PART-TIME or FULL-TIME | Office in Munich, Germany | https://friendlycaptcha.com

At Friendly Captcha we do one thing and we do it well: we protect websites from malicious actors and bots.

We provide privacy-friendly and accessible anti-bot solutions that don’t annoy users with tasks like clicking fire hydrants. We make the internet a bit better every day by winning over customers currently using Google reCAPTCHA.

We’re a growing, profitable, fully bootstrapped company. Our revenue mostly comes from medium to large European enterprise and governments.

A great fit would be someone who contributes across the entire stack, with perhaps some experience in in data science/engineering. Someone who prefers to keep things simple (perhaps boring is the right word even?) - prefering an if/else rule over a neural network. Good knowledge of the web is always useful in this company. At our scale we are looking for generalists more than specialists.

Our engineering team is fully remote across Europe, we meet up in person a few times per year. You can work either 4 or 5 days per week, fully remote or (partially) from our Munich office. Please note that we ONLY consider candidates located within the EU/UK/EEA/Switzerland.

Stack: Golang | Typescript | Clickhouse | Postgres | Redis | Terraform | OpenTelemetry

Form with more information: https://friendlycaptcha.jobs.personio.com/job/1704357

Unto Labs | Systems Engineer | San Francisco, CA | ONSITE (Hybrid OK), REMOTE (US) | Full-Time | https://jobs.ashbyhq.com/unto-labs/13df6bea-b253-4c80-ae05-5...

We recently announced $14.4 million in funding to make blockchains & digital assets useful for the world. Founded by Jump Crypto alumni and core contributors to the Solana protocol and the Firedancer client (https://github.com/firedancer-io/firedancer), we’re tackling fundamental scalability, performance, and usability challenges in distributed ledgers. Our runtime conforms to the RISC-V specification—moving away from domain-specific VMs and bespoke compiler toolchains that limit developer and institutional adoption. Components are developed in C for maximal control over performance and resource usage.

Interesting problems you’ll tackle:

- Building and testing high-performance subsystems in C (cryptographic routines, consensus primitives, networking protocols)

- Designing robust process isolation on modern CPU architectures and tile-based multi-core layouts

- Optimizing memory hierarchies, cache utilization, and low-level I/O for commodity servers

You:

- 5+ years of systems programming in C/C++, Rust, or similar

- Deep expertise in CPU microarchitecture, memory subsystems, and low-level performance tuning

- Strong understanding of distributed systems design and consensus protocols

- Experience with high-performance networking and protocol design in real-time environments

Apply: https://jobs.ashbyhq.com/unto-labs/13df6bea-b253-4c80-ae05-5...

Nelknet (https://nelknet.com/) | Senior contractors, frontend and backend | Remote (US & international, but some overlap with clients needed)

We're a small, experienced team building software solutions for US-based clients. Recent projects include:

- Building ChatGPT-style interfaces for intelligence report analysis

- Developing generative AI features for professional networking platforms

- Platform engineering for logistics/trucking management systems

- Architecture design for real estate search engines

- Implementing RAG pipelines for edtech products

We're expanding our network of senior contractors (both frontend and backend). This is a 1099 contracting relationship - you'll have the flexibility to manage your own schedule and potentially work with other clients while maintaining a professional commitment to our projects.

Requirements: - Strong English communication skills - Senior-level development expertise - Experience with modern tech stacks - Ability to work independently while collaborating effectively - Some level of US business hours availability

If you're interested, please fill out our intake form: https://baserow.io/form/mXa6NqUOKw9CcDPAU37oPh1uOPFHHESph6k0...

If we have a project that is well-suited to your skillset, I will definitely be reaching out!

Looking forward to connecting!

Breezy | REMOTE (Global) | Contractor | React Native, Tech Support, Data Migration | jobs@getbreezyapp.com

We’re Breezy — a product-focused, early-stage startup building modern software for Residential HVAC contractors. Think of us as the scrappy alternative to ServiceTitan or Housecall Pro. We’re a small, fast-moving team that loves to ship great product and solve real problems for hardworking pros.

We’re hiring for a few key contract roles, all remote:

1. Senior React Native Engineer Help us replatform from PWA to React Native and build a best-in-class local-first field service management app. You’ll work closely with the CTO and product team. Strong experience with React Native and mobile architecture required. $60–$100/hr depending on experience.

2. Tech Support Specialist (US hours) Support our customers and internal team across Tier 1–3 issues. Must be comfortable digging into code, writing scripts, and fixing bugs. Great opportunity for someone high-potential looking to grow into a dev role over time. TypeScript, Node.js, Postgres, React stack. Work hours must overlap with 9am–4pm ET. $25–$35/hr depending on experience.

3. Data Migration Specialist Help us onboard new customers by extracting and transforming data from legacy systems into Breezy. You’ll collaborate closely with the team to write scripts, clean and map data, and ensure successful go-lives. Strong SQL and scripting skills required. Experience with ETL workflows a big plus. $25–$40/hr depending on experience.

All roles are contract-based, with potential to convert to full-time depending on performance and company needs. We’re collaborative, remote-first, and deeply customer-obsessed. If you’re scrappy, product-minded, and love building things that matter, shoot us a note: jobs@getbreezyapp.com

Inngest (https://www.inngest.com) | Engineers, Marketing+GTM | Remote (US, San Francisco) | Full-time | $130-245k + equity

Inngest is a developer platform that enables developers to build amazing, complex, and reliable products without the hassle of building and maintaining infrastructure. It combines modern orchestration, advanced multi-tenant aware queueing, and built-in observability packaged in an easy to learn and use product that any developer can learn.

We're backed by top tier investors including a16z, Notable Capital, Afore capital and angels including Guillermo Rauch (Vercel) and Tom Preston-Werner (Github co-founder). We serve customers from startups and large co's like Resend, SoundCloud, Gumroad, TripAdvisor, Browser Use.

You: Want to be part of a fast growing startup that is changing how developers build software.

- Product Engineer - Full Stack - San Francisco, Remote US

- Infrastructure Engineer - Remote US

- Distributed Systems Engineer - San Francisco

- Developer Success Engineer - Remote US

- Content Engineer, Docs - Remote US

- Product Marketer - San Francisco

Roles: https://innge.st/hn-may-25-hiring

About working @ Inngest: https://innge.st/hn-may-25-info

Cora AI | Founding Engineers (Full Stack & Applied AI) | Remote (USA only, CA & NY preferred) | Full-time | $175-220k + Early Equity

We're building AI agents to transform how B2B companies scale customer relationships. I'll let our customers do the talking: "I'm super excited!! You're changing our lives!!" - Account Manager for Emerging Enterprise (mid-market) accounts that don't usually get very much support

Fresh off our seed round from Acrew Capital, Emerson Collective, Recall Capital and notable angels from LinkedIn, BetterUp, Glean, and Scale AI, and others we're looking for founding engineers to help realize our vision.

Tech stack: Python, FastAPI, React, Vite

- Full Stack: https://cora-careers.notion.site/Founding-Full-Stack-Enginee...

- Applied AI: https://cora-careers.notion.site/Founding-Applied-AI-ML-Engi...

You can learn more here: https://cora-careers.notion.site/

If you are interested, email us at careers [at] cora.ai — These emails go to me, and I review each one of them.

Feel free to reach out if you're interested or have any questions

Abnormal AI | REMOTE (US, Canada, Singapore) with optional offices in SF & NYC, HYBRID (Bangalore, India) | Full-time | https://careers.abnormal.ai

I'm looking for exceptional full-stack and backend engineers to join my teams at Abnormal AI to fight cybercrime. We have multiple open positions for each of these roles, working in Python, Golang, Typescript and React among other leading edge technologies. If you're looking for personal as well as company growth, you won't find a better company than Abnormal AI.

I'm the Director of Engineering for the Messaging Security Products Division. We build the user-facing products for inbound email security and have many interesting challenges working at massive scale. Please see the following links for more details on the open positions and our general careers page link for all open positions across the company. We are hiring for engineering in other divisions as well!

Senior Full Stack Software Engineer (2 open positions)

    Remote US: https://grnh.se/928b1a993us

    Remote Canada: https://grnh.se/d7f27fbe3us

Full Stack Software Engineer (1 open position)

    Remote US: https://grnh.se/d76872433us

Software Engineer II, Full Stack (4 open positions)

    Hybrid Bangalore: https://grnh.se/9b015bbc3us

Software Engineer II, Backend (1 position)

    Remote Singapore: https://grnh.se/2c1e07313us

Amazon – Economic Decision Science | SDE II | Full Time | ONSITE London, UK

We’re hiring a Software Development Engineer for our team at Amazon: Economic Decision Science (London, UK).

We're working in an extremely interesting space at the Intersection of Economics, Machine Learning, Statistics and Data Engineering, shaping how our stores operate and evolve.

Come help us build our Factory of Economics, where economists can operate independently and in parallel, unconstrained by tech bottlenecks or engineering bandwidth. The goal: No software rewrites, predictable time to production, early integration, and fast iteration.

About the team: - AWS resources at our disposal, with no red tape. We invest to add value. Fast.

- Zero-ops mindset. We build in a way we can focus on delivery, not maintenance.

- No on-call. No phone paging.

- Lean and pragmatic: No stand-ups or sprints; we work towards clear, business-aligned quarterly goals.

- Greenfield projects and a focus on simple solutions for complex domains.

- Tech stack includes Python, Airflow, DBT, Spark, Iceberg, SageMaker, Lambda, and Bedrock – but we always use the right tool for the job.

Role description and application: https://www.amazon.jobs/en/jobs/2968443/sde-ii-economic-deci...

Pylon (https://pylonlending.com) | ONSITE Menlo Park, CA

What Stripe did for payments, Pylon is doing for the mortgage industry: We're taking a sleepy industry with backward technology and re-building the stack from the ground up. We're first-principles thinkers, and our team is small, talented and ambitious.

I'm hiring generalists who love coding and want to build something beautiful in an industry where technology written in the 90s is the norm. We're Series A, well funded, and we have traction with customers. Come to Menlo Park and help us turn the $2 trillion US mortgage industry into a set of APIs.

I've been commenting on HN since 2009, if you apply through this link, I'll personally reply to your app:

https://jobs.ashbyhq.com/pylon?utm_source=hn-whos-hiring

If you like:

- Programming languages

- Operations research & optimization

- Building things the right way

Come join us!

Peregrine Technologies | Senior Software Engineers | SF / NYC / DC - Hybrid | Full-time | $130,000 - $250,000

Peregrine exists to help public safety organizations better protect their communities and the privacy of those they serve.

Our stack is constantly evolving but based on a backend foundation of Python, Django, Celery, Airflow, and Kafka; a frontend built in React, Redux, and Mapbox; data stores including PostgreSQL and Elasticsearch; machine learning models hosted in Bedrock and Sagemaker; and with AWS, Pulumi, Terraform, and Kubernetes as our underlying infrastructure.

Engineering Roles:

Engineering Team Lead, Identity https://job-boards.greenhouse.io/peregrinetechnologies/jobs/...

Senior Software Engineer, Foundations https://job-boards.greenhouse.io/peregrinetechnologies/jobs/...

Senior Software Engineer, Apps https://job-boards.greenhouse.io/peregrinetechnologies/jobs/...

Senior Software Engineer, Data https://job-boards.greenhouse.io/peregrinetechnologies/jobs/...

Senior DevOps Engineer https://job-boards.greenhouse.io/peregrinetechnologies/jobs/...

Senior Network Engineer https://job-boards.greenhouse.io/peregrinetechnologies/jobs/...

Privy | NYC or Remote | Senior/staff engineering roles (backend, infra, frontend, much more) | Full-Time | https://privy.io

Hi, I'm Asta, CTO at the identity and fintech infra startup Privy. We build a wallet and digital asset API that hundreds of companies integrate in order to onboard (50M+) users onto products built with blockchain infra and distributed systems.

Our mission is to power digital ownership for all users. We believe that using digital assets to power money movement online is the next frontier for user ownership and financial empowerment. We're building foundational infrastructure that enables this.

We're a small, high-ownership team building a product with incredibly scaled usage (>5M MAUs, massive transaction volume). We've raised $40M from Ribbit & Sequoia. We ship constantly, multiple production releases every week.

Reach out at join [at] privy.io - these emails go to me. https://privy.io/careers

Smarkets (https://www.smarkets.com) | Full Time | Hybrid - Onsite (London, UK)

Smarkets is a betting exchange for sports and political trading that has handled over £37 billion in volume since 2010. Our company mission is to fix the betting industry with the best products and best prices.

We are currently looking for:

Head of Engineering - https://smarkets.com/job/6667700/

Lead Software Engineer - Backend, Distributed Systems, Rust - https://smarkets.com/job/5997705/

Software Engineer - Backend, Python, Rust - https://smarkets.com/job/5945885/

Senior Quantitative Developer - https://smarkets.com/job/6489235/

Audiencekey.com - Reflexive Media (Phoenix, AZ) | JavaScript & TypeScript Dev (Edge SEO) | Full-Time | REMOTE

We’re a boutique search & digital marketing agency expanding our dev team. Work with JS/TS, modern frameworks (React/Vue/Astro), Cloudflare Workers (KV, R2, D1), caching, and front-end components from Figma. Bonus if you’ve done headless WordPress (WPGraphQL, ACF). Join us to push boundaries with Edge SEO, advanced caching, and data-driven content strategies.

Stack: JS/TS, React/Vue/Astro, REST/GraphQL, Cloudflare (Workers, Pages), Git, QA, SEO best practices Nice-to-Have: Headless WP, WPGraphQL, Gutenberg dev Perks: Competitive comp, remote flexibility, hairy projects Interested? Email: singrassia@reflexive.io

Orca | Europe (Madrid, Oslo, Berlin, Barcelona...) | Remote (EU timezone)/Hybrid/On-site | https://getorca.com

At Orca, we’re building the future of marine navigation. Our mission is to become the go-to app for planning and navigation on water.

We’re a small, fast-moving team with emphasis on ownership and autonomy. We serve over 250k active boaters across Europe and North America. We're looking for engineers and product builders who want to ship to a passionate user base. If you are into boating/sailing, this is a great opportunity to build in the space.

Open roles:

- Senior/Lead Mobile Engineer, React Native - Build high-quality apps used by boaters worldwide → https://getorca.com/careers/senior-mobile-engineer-rn/

- Senior Software Engineer, GIS - Build marine charts → https://getorca.com/careers/gis-engineer/

- Senior Software Engineer, Algorithms - Build our routing engine for sailboats and powerboats → https://getorca.com/careers/senior-software-engineer-algorit...

We also have open roles in product/design, marketing and quality.

Reach out to us at careers@getorca.com. Mention you are coming from HN.

Sharecare | Multiple Roles (Contract) | Remote – South America, Mexico, India, Canada, EU | sharecare.com

==============

1. BI Engineer

==============

* Expert in SQL, especially window functions and performance tuning

* 3+ years working with BigQuery and Looker Studio

* Strong Git/GitHub skills and experience documenting data pipelines

* Comfortable with non-relational data structures

* Clear English communication required

==============

2. Front-End Engineer

=============

* Strong experience with React, Next.js, Material UI, and Node.js

* Familiarity with PostgreSQL, unit testing, and Docker

* Able to build clean, responsive UI and integrate with backend APIs

* Clear understanding of component design, performance, and user experience

* 3+ years of experience

==============

3. Backend Engineer - Clojure

==============

* Expert in Clojure and functional programming

* Familiarity with GCP, Kubernetes, and Docker

* Experience with PostgreSQL and graph databases/traversal

* Ability to translate business requirements into scalable architecture

* Prior startup experience is a plus

* Comfortable with Docker and build systems

==============

Culture & How We Work

==============

* Competitive compensation based on location

* Startup culture with zero BS meetings

* Engineers from MIT, Yahoo — tight feedback loops, high code quality

* We value ownership, autonomy, and clarity of thought

* We don’t hire task rabbits — we want self-starters who care about user impact

* Think like a builder, not just a spec executor

email: prashanth.iyer at sharecare.com

OneTake AI (https://www.onetake.ai/) | Product Owner / Product Manager | Fully Remote (CET hours ±4) | Full-time

Hi there, I’m one of the co-founders of a remote AI startup that’s reimagining video editing with cutting-edge LLM technology. We’re small, friendly, and flat in structure, and we place a high value on autonomy, initiative, and embracing complex challenges (instead of waiting for step-by-step instructions).

Our stack: React (front-end), Node.js (API backend), Docker & Kubernetes for deployments, AI/LLM APIs (OpenAI, Claude, Llama, etc.)

We’re looking for: Proven experience as a Product Owner/Manager in an Agile startup environment· Strong technical background with ability to understand and write API specifications · Expertise with product analytics tools (e.g., MixPanel) · Proficiency in prototyping tools (e.g., Axure RP, Figma) · Demonstrated experience using modern AI tools (LLMs) to enhance productivity

Nice to have: - Video/video-editing product background · Master's degree or higher in Software Engineering or related field · Professional certification(s) in product management · Startup experience

What we offer: Full-time remote role · Competitive compensation · Fully remote from Europe/EMEA timezone · Flexible hours · Potential in-person team gatherings in warm, pleasant locations

More info / Apply: https://www.onetake.ai/team/positions/product-owner

[Stealth GenAI startup] | NYC ONSITE | Founding Engineering Lead | Full-Time]

We're a stealth mode genAI startup working to advance the state-of-the-art in generative visual media. We've just closed our preseed round and are now backed by 3 expert VC funds and a collection of AI leader angels. Our team consists of highly experienced AI leaders from leading companies. And we're working with some of the biggest companies in media.

The role we're hiring for is an engineering leader to drive the evolution of our research platform into our first commercial-grade product. This work centers around the orchestration and scaling of vision and image generation models. You'll be the primary architect of our platform capabilities and working closely with both cloud and model partners as well as enterprise customers deploying our technology.

This is a unique opportunity to be part of the founding technical cohort of a deeply innovative team with a unique technology that no one else is building.

More about the role here: https://docs.google.com/document/d/1xMiTuj3VTgA96Yg3EzORsaDj...

Archie (https://www.archiehub.com) | Remote (US East Coast + EU) | Full-Time | Equity | Roles: [Lead Product Engineer (Ruby on Rails), Senior Full-Stack Developer (Ruby on Rails)] Hi, my name is Marius and I am the CTO at Archie (https://www.archiehub.com/). Archie is here to make buying a home easier, faster, and more transparent by reducing paperwork and improving efficiency. We are well-funded, growing quickly, and led by founders with over 20 years of combined experience in real estate and tech.

We are now looking to hire Lead Product Engineers and Senior Full-Stack Developers with at least 8 years of experience. If you're excited about building meaningful products in the real estate space from the ground up using AI, these roles are for you.

Backend Stack: Ruby / Rails (8.x), StimulusJS / Hotwire / Turbo, AlpineJS, Postgres, Docker, DigitalOcean, OpenAPI, LLMs

Perks: Fully remote roles in (Eastern) US and (Western) Europe, work when and where you are most productive, sizeable equity in a rapidly growing company, flat hierarchies, no-ego work environment

Apply here: marius[at]archiehub.com and mention “HN - Who is hiring?” and the role you are applying for in the subject.

Fairwater Labs | Technical Cofounder for Planning and Strategy AI Dual-Use Startup | Remote-first | Full-Time | Competitive salary and significant equity (US authorized only)

Help us reinvent how military and civilian teams plan complex operations. We’re building an AI copilot that streamlines today’s manual, slide‑driven workflows—drafted by LLMs and refined by the user in real time. Think Cursor for strategic planning.

Why join now?

Backing from a dual‑use venture studio with multiple exits and in‑house DoD BD expertise.

Wireframes, validated user stories, and early users are ready—your code ships to real operators fast.

Founder CEO is a former Army officer and past startup‑exit founder with a full-stack developer skillset who’ll speak your language.

What you’ll do

Own the end-to-end architecture & roadmap – choose the stack, design data pipelines, secure cloud infra, and React/TypeScript front-end.

Build the MVP with the CEO, ship weekly releases, then hire and lead a small, AI-leveraged team.

Co-shape product decisions with DoD users and early commercial adopters. You

Highly experienced full-stack/ML engineer who can explain and defend tool choices (e.g. Python, TypeScript/JavaScript, React, LangChain, vector DBs, CI/CD, IaC).

Proven track record shipping production LLM or search-heavy apps with polished UIs; comfortable with DevSecOps and data security (GovCloud/IL4+ a plus). Entrepreneur at heart—show us something you’ve built that shipped fast.

Send a brief intro (or resume if you have it) + GitHub/portfolio to kyle@fairwaterlabs.com.

thelab (https://www.thelab.co) | Senior Backend Engineer | ONSITE (NYC) or REMOTE (US or Türkiye) | Full-Time

We are looking for two experienced back-end engineers: (1) one to lead work with our client’s e-commerce business; (2) a second to lead a greenfield project involving ML and NLP driven workflow automation tools. The ideal candidate would have experience working with large Python and Typescript codebases. We are looking for someone who is self-motivated and is able to work with a team early on in a project, plan and identify requirements, see a project through to completion, and mentor junior members of the team along the way.

---

About thelab

We’re an agency of makers with deep expertise in solving creative and technology challenges. Our focus is on making better work to help brands work better. From branding & design, to software builds, large-scale ecommerce or anything in between, thelab mixes inspiration and hard work to produce results that mean business. Oh, and we host a mean barbecue too.

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To apply, please go to https://thelabnyc.bamboohr.com/careers or email jobs.dev@thelab.co.

Tandem Health | Software Engineers | On-site in Stockholm, Sweden | Full time

At Tandem Health we're building a clinician copilot to allow clinicians to focus on care rather than administration. We’re building, launching and iterating quickly, and already have >500 organizations using our product.

Our core product listens in to the patient-clinician encounter to generate medical records, allowing clinicians to save 5-10 minutes per patient. No longer do clinicians have to catch up on administration after hours. Some even tell us that their partners notice they're much more relaxed after starting to use our product, and we couldn't be happier :)

We're expanding our Stockholm team with exceptional engineers! We use Python (backend), TypeScript/React (frontend) and C# (Windows app) and our infrastructure runs on Kubernetes in Azure. We're scaling rapidly in terms of # of users and are especially keen to talk to senior backend engineers who have helped startups scale from thousands to millions of users.

Even if we don’t have a role out for your specific skill set, we’d love to talk! Our tech team is small but growing and you’ll have an outsized impact on an important problem.

More info at https://tandemhealth.ai

Feel free to reach out to john.moberg@tandemhealth.ai if you have any questions

Better Off | Full-time | NYC (Onsite) | Growth Marketing (0-4 years) | betteroffsocial.com

Hiring junior growth marketer @ Better Off in IRL Social space.

--

Exec summary: Better Off is a marketplace for social experiences that connects users with the events and people they want to meet + gives experience creators the tools to start and scale. Similar to Amazon but for experiences/people, not products.

We use neural networks to match users groups they want to meet, and host experiences on our platform like huge brunches, trivia nights, ski trips, sports leagues, sushi-making classes, run clubs, etc. It's a fun way to meet new people outside of work & dating apps.

--

Job Title: Growth Marketer

Company: Better Off

Location: New York, NY (ONSITE)

Space: IRL Social, Artificial Intelligence

Comments: We’re launching in major cities this year, and we’re looking for a growth marketer to join our 12-person team as our first dedicated marketing hire. You’ll work directly with the CEO to build and execute our digital and guerilla marketing strategies, grow the brand, get Better Off in front of the right people, and give people an alternative to dating apps.

--

Application link/details: https://app.dover.com/apply/Better%20Off/a32724d0-99e3-448e-...

DoShare | getcloud.doshare.me | Founding Engineers | Remote or Hybrid (India only) | Projects - Personal Cloud - Work Cloud

We're the best in class open-source user focused cloud storage provider in Asia, working on cutting edge tech to power the next gen of cloud. We're a team of few people that works round the clock, to improve security and user experience from just our bedrooms, if you're a person interested in joining this type of work environment, we'd love to have a chat.

Shoot us a simple email, telling us about you and your previous works at careers@doshare.me , by including "HN Hire" in the title or body.

If you're a person interested or following cryptography, encryption and privacy, do mention that in the email.

Better Stack | https://betterstack.com | /^(Full-?stack|Backend) Engineer$/i | Europe remote in UTC ± 3h

We are software builders at :heart: CEO is a software engineer, COO is a software engineer and you guessed it; CTO is an engineer, too. We are engineers, making the tools we always wanted. If you love building amazing software, you're at the right address.

We are looking for software engineers who, if given enough time, could build Better Stack on their own = looking for Full-Stack/Product Engineer/Generalist to help us create high-quality software with exceptional UX—end to end.

Apply at https://betterstack.com/careers/fullstack-engineer

How we operate: https://betterstack.com/careers https://betterstack.com/careers/engineering https://juraj.blog

Purplefish | https://purplefish.com/careers | Member of Technical Staff | Full-Time | ONSITE | New York, NY, USA | NextJS, Typescript, Python | $150k-$225k + 0.5%+

Purplefish is transforming the trillion-dollar talent industry with powerful AI agents that will fully automate most hiring processes end-to-end.

We are funded by 8VC, and Adam and I previously worked closely together to launch 145 companies at the venture studio Fractal Software out of a $650 million fund. Before that I was a staff software engineer at Lyft, and Adam was CRO at Wunderkind ($100m+ ARR). We've built a powerful voice agent, and are expanding into other parts of the sourcing-to-onboarding flow. We have customers, revenue is growing, and so is our team.

We're currently a team of 3 engineers in NYC (9 people total). We're working on really cool problems with multimodal AI agents (and some really not cool problems like ATS and HRIS integrations). I'm trying to build the engineering team that I would want to join, which to me means a high emphasis on agency, purpose, technical excellence, collaboration, learning and velocity. Recently A16Z mentioned us in the state of voice AI report: https://a16z.com/ai-voice-agents-2025-update/

We're building on LiveKit's agents framework, Python, and NextJS. We're having a lot of fun and having real positive impact on our customers' businesses.

If you're a great engineer let's talk: https://purplefish.com/careers

Source | Founding Engineer | Remote (US) | Full-time | $150-200K + Equity

====== What we're building & role:

Source (https://getsource.ai) is building middleware and tools to help creators protect, structure, and trace their content across the web and AI systems. We're blending cybersecurity, web infrastructure, and adversarial LLM research to give creators control — and make their work more valuable to models via ontologies, enrichment, and agent-aware metadata. We're VC backed and looking for a Founding Engineer (full-stack or backend-leaning) who’s excited about the future of the creator economy, adversarial AI, and secure, content-aware infrastructure.

====== Stack:

Python (PyTorch, HF Transformers, Pillow, Selenium/Chromium, Puppeteer, Playwright)

Next.js + TypeScript

Edge compute (Cloudflare Workers, Lambda@Edge)

LLM ontologies, KGs, RAG / VectorDBs, JSON-LD, CodeAgents, MCP

If you’re into building systems that stand up for creators and enrich content for the age of AI, we’d love to talk.

====== Contact:

alex.paris@getsource.ai https://getsource.ai/

Ameba | Full-stack Engineer + Applied AI Engineer | London | On-site | £100-130k + Equity

Engineering at Ameba is a rare opportunity to build cutting-edge software in a traditional industry, while being generously rewarded for your contributions.

If you’ve never considered working in supply chains before, everything around you, including the device you're reading this on, has a story of how it got there. Raw material to finished product, that story is the supply chain. If the unseen machinery of the world sparks something in you, we'd love to talk!

We're a startup made up of experienced entrepreneurs (who have previously raised $160m+) and builders (ex-Meta, Palantir, Microsoft, Quant Devs, UnlikelyAI). We have big ambitions and are backed by some of the most successful investors in Europe. Since launching just over a year ago, we’ve raised more than $9M and are already working with some of Europe's biggest brands — and things are only just getting started.

If you're interested, please apply here: https://jobs.ashbyhq.com/ameba

(Note: We are now able to sponsor visas!)

Formal | Formal Verification Engineer | REMOTE | Full-Time | >= $150k - $200k + 0.5% equity

We're building a new computing stack for instant, globally available, truly elastic, soundly isolated execution. We’re building low overhead, formally verified isolation primitives, without containers or VMs. We're taking all of this to the network with new a programming language to replace eBPF and enable truly serverless networking infrastructure.

We are a 5-person, VC-funded team with PhDs from Stanford, UW, OSU, and Brown, advised by professors from MIT and UWaterloo. We are looking for a formal verification engineer [1] with deep and practical experience with Rocq.

Please email us at (work at formalstack dot com) and let us know how you fit the role [1].

[0]: https://formalstack.com [1]: https://formalstack.com/jobs/05-2025/verification.pdf

Comulate | Senior Engineer (3+ YoE) | ONSITE in San Francisco, CA

We're building automation software for the $7T insurance industry, accelerated by AI. Seed stage in terms of headcount (< 20 people) but Series B in terms of business traction (+ cash-flow positive). We've intentionally stayed under the radar.

- Product has caused customers to literally cry tears of joy

- Experienced eng team from Airbnb / Brex / LiveRamp

- Stack: TS, Postgres, React, GraphQL, and Next.js

Apply here: https://comulate.com/careers

Jam.dev | Staff Fullstack Engineer | Typescript/React | Remote (+ in person in SF) | Full-time

Dev tools company with 200,000+ users. $15M in funding from Vercel CEO, GitHub CTO, Cloudflare CEO, etc.

We're building an AI-powered flight recorder for web apps – so anyone can report issues to engineers in a way that's actually debuggable (w/ console, network, websockets debugger, etc).

Small, senior team – several ex-engineering directors turned ICs (mostly ex-early Cloudflare). Looking for staff-level engineers with experience building highly performant front-end apps.

Stack: React/Typescript and MobX (MST) on the frontend, and Node/GraphQL across our backend.

As a dev tool, developers at Jam are directly connected and involved with the product. Your usage of the product will directly inform the direction of Jam's future.

Apply here (we read every submission): https://jam.dev/careers

Checkly | Senior Product Engineer AI | REMOTE (UTC +3 to UTC -3) | Full time | €84k - €103k + equity | https://www.checklyhq.com/ Checkly helps engineers build reliable products by unifying testing, monitoring and observability. OpenTelemetry, Playwright, and Monitoring as Code are our foundation for unifying performance and reliability. In 2024, we raised $20M in Series B funding from Balderton, CRV, and Accel to take things to the next level.

We’re looking for an Senior Product Engineer AI to design & build AI agents and AI enhanced features iteratively that help our customers debug, fix and create Playwright and API tests faster as well as implement solutions full stack with the team.

See the full description and apply here (and mention HN): https://jobs.ashbyhq.com/checkly/afd46503-2adb-423e-a2ff-096...

WunderGraph | Multiple Roles | REMOTE | Full-Time WunderGraph (growing global customer base, 70K weekly downloads and growing) APIs are the backbone of every modern organization. But building and maintaining APIs is hard, especially when you'd like to scale API development across multiple teams. The key to success is collaboration. Our mission is to take API collaboration to the next level. With Cosmo, we're give platform teams a solution to provide a self-service API Developer Platform to their teams. We believe that Open Source is the key ingredient to become the number one solution for API Development and Collaboration. The project is completely open-source.

You will be an integral member of an expanding team at a VC-funded startup with a dynamic mission to innovate and transform the field of GraphQL Federation.

Apply here: https://wundergraph.com/jobs#open-positions

Granola | London, UK | On-site | https://granola.ai

Granola is an AI notepad for people in back-to-back meetings. Our macOS app takes your meeting notes and combines them with a transcript to get an awesome meeting summary. And increasingly, Granola is a new kind of knowledge-base.

We're 15 people working in lovely Shoreditch office. See our approach to early-stage product development: https://www.granola.ai/blog/how-to-evolve-a-product

Stack: TypeScript, React, Electron, AWS, various LLM tech.

We recently raised $20M and we're growing very quickly. We're funded by Spark Capital, with participation from investors AI Grant, Lightspeed, Betaworks, Firstminute Capital, and others.

Open roles:

- Product Engineers (Backend & Frontend)

- iOS Engineer

- Electron Engineer

- AI Engineer

- Founding Designer

Competitive compensation with above-market equity.

See https://granola.ai/jobs or email hiring@granola.so.

Goody | Engineering Manager | REMOTE (US and Canada) | Full time | $150-200K + equity | https://ongoody.com

Goody is a gifting platform that makes personal and professional gifting easy. Founded 5 years ago, our product is the UI/UX leader in the space and is used by Google, Stripe, Meta, Notion, NBCUniversal, DHL, and others.

Our market has hundreds of billions in TAM with no established leader, and our goal is to build the best product in the space, win the market, and bring more delight into the world.

We’re looking for an Engineering Manager to lead and grow our small and talented team of 4 full-stack software engineers at Goody. In this role, you’ll have the opportunity to build an insanely great product, influence the growth of our team members, and cultivate an exceptional engineering culture.

See the full description and apply here (and mention HN): https://jobs.ongoody.com/engineering-manager

CLEAR | Fullstack & Backend Engineers (all levels), iOS Engineers (all levels), Android Engineers | NYC / Austin | Onsite (5 days in-office) | https://www.clearme.com/

CLEAR's mission is to strengthen security and create frictionless experiences. With over 30 million members and a growing network of partners across the world, CLEAR's identity platform is transforming the way people live, work, and travel. CLEAR connects you to the things that make you, you – making everyday experiences easier, more secure, and friction-free. CLEAR is committed to privacy done right. Members are always in control of their own information, and we never sell member data.

If interested, apply here --> https://grnh.se/e4e5dc881us

Odoo | Full Stack Developer | Hybrid (Belgium, 3 days/week) | Full-time | Visa + €10k Signing Bonus | https://www.odoo.com/r/mnk

Odoo builds open-source business apps used by millions. We're hiring full stack developers to work on our Python/PostgreSQL backend, fast JS framework, mobile apps, website builder, and more.

Why join us:

- €10k signing bonus - Visa sponsorship + relocation support (contains 1 month free housing) - No clients, no deadlines — just clean, open-source code - Pick your team after 3 weeks of onboarding - Great team, countryside office (with chef!), flexible hours

You:

- Master several programming languages - Proficiency in object-oriented programming - Strong in SQL, data structures, and DB design - Passionate, autonomous, and eager to build real stuff

Apply → https://www.odoo.com/r/mnk

Looking for my Shel Kaphan | Dirac | Lead Founding Engineer | London Acton

Dirac is going to displace Amazon in e-commerce, and I’m looking for a suitably ambitious partner in crime to take us from series seed to A and beyond.

You’ll be building price/demand estimators, AI agents to run operations, helping our two excellent (but inexperienced) devs, running our systemd, doing dbadmin work, our stock backend etc.

Investors include will thorndike, charlie songhurst, patio11, backedvc

email ethan [at] dirac [dot] software if interested - don’t forget to include a favourite bit of coding/maths/engineering, a book recommendation and an interesting pun. Visa sponsorship possible!

Tetmon | Technical Writer | REMOTE (APAC time zone)

We’re looking for a full-time technical writer to get familiar with our software product and help explain it to others. Your job would be to expand and enhance our educational materials, including but not limited to our:

- EdgeSet user manual (https://www.tetmon.com/edgeset/manual/current/en-US/)

- Blog posts (https://www.tetmon.com/blog)

- Slide decks for our in-person and online training programs

- Employee and partner handbooks and documentation

- Case studies and project summaries

- Scripts for videos

Our manual is maintained in Quarto (markdown). All other documents are in Google Docs.

Since you'd need to regularly interact with our engineers, analysts, and clients, we need you to be in a time zone in Asia (we are centered around SGT).

Please send your CV and a link to examples of your work to careers@tetmon.com.

Coveo | Senior Fullstack Developer | Canada/Europe | Full-time | Hybrid/Remote

At Coveo, we build AI-powered systems that bring hyper-personalization to every enterprise experience — whether it's e-commerce, customer service, or internal workplace tools. Our platform unifies relevance across the stack, helping users find what they need, when they need it.

We're looking for a Senior Fullstack Developer to help us scale these experiences. You'll design and build high-scale systems behind search, recommendations, product discovery, and Generative AI — crafting clean APIs and responsive UIs that deliver fast, personalized experiences to millions of users.

Stack: Java, React, TypeScript, AWS, Kubernetes, REST APIs, responsive web apps, distributed systems

You'd be a great fit if you have:

- 5+ years of software development experience

- A strong track record in high-scale backend development

- Experience with cloud infrastructure

- Solid front-end skills

- Strong communication skills and a collaborative mindset

We offer competitive salaries, top-tier equipment, great offices, and a team that genuinely values your input.

Interview Process: phone screen, interview with hiring manager, tech test, offer

Apply here: https://grnh.se/476db1032us

Looking for something else? We're also looking for NLP Applied Scientists (https://grnh.se/9c67754e2us), ML Backend Developers (https://grnh.se/0c1ebd5b2us) and a Data Platform Director (https://grnh.se/9fa7d47f2us)

Science (https://science.xyz/) | SF Bay Area (Alameda, CA) | Onsite | Software engineers, mechanical engineers, electrical engineers

We’re a neural engineering company that just raised $110M led by Khosla. We’re looking for exceptional software/mechanical/electrical engineers. More: https://science.xyz/careers/. Feel free to reach out at joem@[ourdomain.xyz].

Vivid Machines | Senior Software Eng Mobile/Web | Toronto or Bay Area | Full-time

We're building edge AI and a data platform for high-throughput, high-fidelity analysis of fruit crops to get this $1T industry ready for the future of farming. We operate in orchards in vineyards around the world.

We're looking for someone to take our analytics apps to the next level, in close collaboration with product, ML, and embedded SWE.

More info here: https://vividmachines.bamboohr.com/careers/76?source=aWQ9MjE...

Tracebit | https://tracebit.com | London, UK | Full-Time | Visa sponsorship available | On-site (5 days)

Tracebit is a Seed Stage, UK founded security product company taking a new look at canaries for intrusion detection.

We’re backed by Accel and we work with some amazing companies (Docker, Riot Games, Synthesia, Cresta, Oleria, Netacea) to help detect threats in cloud and enterprise.

We’ve hired 5/6 founding engineers - there is 1 space left in our plan for this year, could this be for you?

Founding Engineer | £70-100k + generous seed stage equity

Learn more and apply: https://tracebit.com/jobs/founding-engineer

Terial | Staff Full-Stack Engineer (TypeScript) | Onsite - NYC | Full Time

Terial is disrupting the ~$13+ trillion global construction industry with modern, AI-powered operating software for commercial roofers and contractors. The industry has traditionally been underserved by technology, creating a perfect storm for rapid growth and market adoption.

We’re looking for a Staff Full-Stack Engineer with 10+ years of experience and strong back-end skills. You will help shape the product, lead technical decisions, and own end-to-end execution in a focused, ownership-driven environment.

Full job description: https://job-boards.greenhouse.io/applytoterial/jobs/55005210...

Sphinx Defense | Engineering, DevOps, & Product | Remote (US Only), DC, Colorado Springs, LA | https://www.sphinxdefense.com

Sphinx Defense builds software to solve complex national security problems for America and its allies. Founded by engineers and technologists with deep experience across commercial and defense technology, we're building a vehicle-agnostic communication infrastructure to enable satellite operators to securely utilize antenna networks and maneuver satellites in real-time. We're bootstrapped, profitable, and growing aggressively.

To learn more about who we are, our engineering culture, and whether this is the right place for you, read our Key Values profile: https://www.keyvalues.com/sphinx-defense

Our current openings are: Sr. Backend Engineer - Colorado Springs : https://grnh.se/7184c0238us

Sr. Backend Engineer - Remote : https://grnh.se/3ef2598b8us

Sr. Fullstack Engineer - Colorado Springs: https://grnh.se/c51e13b88us

Sr. Fullstack Engineer - Remote: https://grnh.se/df77bc628us

Sr. DevOps Engineer - Colorado Springs: https://grnh.se/e0bcde898us

Don’t see a role that aligns with your interests or don’t have the specific Space/ Command & Control experience? Apply to the general interest application and list what type of role you would be interested in : https://grnh.se/4ce199d68us

Check out our open roles: https://www.sphinxdefense.com/#careers

Zetier | Multiple US locations (VA, PA, FL, TX, CA, NY) | ONSITE | Full-Time

Zetier develops real-world tools and capabilities to secure our nation in the short- and long-term. If you’re excited to delve deep into low-level systems, exploit dev, and more alongside a group of passionate hackers, then we’d love to hear from you.

We’re looking to find the right people for a range of roles, including:

+ Vulnerability Researcher

+ Android Security Engineer

+ CNO Embedded Engineer

+ CNO Software Engineer

+ Senior Tech Lead

+ Business Developer

All open positions: https://zetier.breezy.hr/

Our approach and benefits: https://zetier.com/careers/

Different skill set? Drop us a line at hello@zetier.com

Sanctuary Computer (https://www.sanctuary.computer/) | Full-stack Developer | Full Time | ONSITE New York, US

At Sanctuary Computer — we’re building a different type of technology shop. Based in NYC’s Chinatown, the way we approach building things is more like a restaurant than a traditional agency, with an emphasis in providing our clients with an outspoken sense of comfort and hospitality.

We’re looking for a New York City-based developer with experience building web and/or native apps.

In this role, you’ll be joining our new New York-based development team, working out of our co-working space, Index NYC(http://index-space.org/irl/nyc).

- Building web and native apps

- Collaborating with design partners

- Communicating directly with clients to align project scope with budget and timeline

- Contributing to garden3d’s culture broadly

- Being a foundational member of our NYC-based team-within-a-team, with room to grow and mentor other team members.

Read more and apply here: https://www.notion.so/garden3d/Full-stack-Developer-NYC-1d71...

Kaleidoscope.bio (www.kaleidoscope.bio)| NY, SF, Remote (North America) | Full-time | Software Engineer

We're building the R&D operations platform for ambitious scientific teams. If you're passionate about advancing scientific research and solving complex engineering challenges in a fast-paced startup, join us!

Apply here: https://www.kaleidoscope.bio/careers

Mechanize | Full-Stack Engineer | San Francisco (onsite preferred), REMOTE (US) | $300k-$600k | https://www.mechanize.work

We're creating high-fidelity virtual work environments, benchmarks, and datasets to enable AI agents to master real-world jobs—starting with full-stack software engineering. Our mission is to develop the infrastructure that will enable the full automation of the economy.

Unlike traditional AI approaches, we're focused on creating simulated environments that capture the full scope of what humans do at work: using computers, completing long-horizon tasks, coordinating with others, and adapting to obstacles and interruptions.

As our second engineer, you'll:

- Build our core simulation platform (containerized environments for AI agents)

- Design realistic evaluation scenarios for software engineering tasks

- Develop consumer web apps for our environment

- Establish engineering standards, and directly shape technical direction at an early-stage startup

You might be a fit if you:

- Have 5+ years building full-stack products

- Write fluent TypeScript (React) and Python

- Are comfortable with Docker and Kubernetes-based environments

- Enjoy close user collaboration and rapid iteration

Bonus: Container orchestration, developer tools, or ML/RL experience.

Learn more:

- Official job listing: https://www.mechanize.work/hiring

- Company website: https://www.mechanize.work

- Hear from two of our founders: https://www.dwarkesh.com/p/ege-tamay

Email CV/GitHub to hiring@mechanize.work (Subject: Full-Stack – Your Name)

$20K referral bonus available (https://www.mechanize.work/referral). Applications reviewed on a rolling basis.

Ivo | SF (ONSITE) | Software Engineer

Ivo (www.ivo.ai) is an AI legal assistant for reviewing and redlining contracts more efficiently — although we primarily serve lawyers, we think we can eventually remove lawyers from contracting processes entirely. Our customers include companies like Zapier, Canva, Quora, and WordPress.

We recently raised our Series A from Costanoa Ventures, NFDG, Uncork Capital, Fika Ventures, and more.

Email me at jacob@ivo.ai if you're interested!

Raileasy | Junior Backend Software Engineer | Remote (company based in London) | Permanent/PAYE | Must be UK Based

Ever wanted to work in the UK rail-ticketing retail space?

Raileasy, who own and operate the TrainSplit brand, are hiring for a junior backend software engineer.

Our API powers some of the most established and recognisable brands in the independent rail retail space (particularly where split-ticketing is involved) such as TrainSplit, Realtime Tickets from Realtime Trains, Split My Fare, Railboard and others. We provide both B2C and B2B ticket booking services. We are a remote-first organisation; we have engineers in a variety of locations across the UK, but we make good use of pair programming, video conferencing, asynchronous communication and in-person meet-ups at mutually accessible locations to collaborate.

We’re looking for someone UK-based who will be able to work on our .NET-based services, primarily in C# – but we have a variety of smaller services written in languages like Golang and Rust too. This role would be ideal for someone who has recently graduated from e.g. a CS course, or has taught themselves how to program and now has a decent grasp on the fundamentals. Any internships, placement years and/or open source contributions/repositories (even if it's just a few Advent of Code days) you could show us would reflect well on your application.

An interest in public transport/rail would be a plus, but is by no means a requirement.

For more information about the role and our API’s architecture, please see https://raileasy.co.uk/careers and the full specification at https://raileasy.co.uk/backend-engineer

For questions send us an email to careers AT trainsplit.com. To apply, email a copy of your CV to the same email address.

No agencies, please and unfortunately, we are unable to accept applications from candidates who do not have the right to work in the UK.

Solace Health | Various Roles | Remote (US Only)

The U.S. healthcare system wasn’t built for patients. It’s massive, confusing, exhausting, and designed to wear people down. It denies access, withholds clarity, fails to take patients seriously, and rarely shows them how to fix what’s broken. When care gets delayed or denied, patients are often left with more questions than answers.

At Solace, we’re on a mission to empower patients & improve outcomes. By helping people work with professional health advocates, Solace serves as an integral, personal support layer for health issues in a way that the health system can’t. Using proprietary technology to match patients with experienced advocates, Solace cuts through the red tape of healthcare and helps individuals and families make informed decisions that result in better outcomes.

Solace is a Series B startup founded in 2022 and backed by Inspired Capital, Craft Ventures, Torch Capital, Menlo Ventures and Signalfire. We have a lean, fully-remote U.S. team distributed coast-to-coast.

Check out our funding announcement in the WSJ here: https://www.wsj.com/articles/medicare-coverage-fuels-solaces....

We're hiring across the org:

Engineering Manager: https://jobs.ashbyhq.com/Solace/e533e3ad-172c-405b-97ed-54cc...

Staff Engineer: https://jobs.ashbyhq.com/Solace/87748158-42b6-4c55-91ca-8f3d...

Senior Engineer: https://jobs.ashbyhq.com/Solace/019c9ce5-4053-4f5b-a639-d75a...

Product Manager: https://jobs.ashbyhq.com/Solace/9b91a426-69f1-4fc3-8cb0-90cc...

Browse All Roles: https://jobs.ashbyhq.com/Solace?utm_source=x4QJmBQEg7

Sobek AI | ML/AI Engineer & Software Architect | Seattle, WA | HYBRID (2-3 days onsite) | Full-Time | $140-190 k + equity | https://jobs.ashbyhq.com/sobek-ai https://sobek.ai/

============== About Us ==============

Sobek works with networks of research institutes, manufacturers, and pharmaceuticals leaders on frontier life science problems—where collaboration across organizational and IP boundaries is critical to innovation. Our agentic AI solution captures emerging best practices and learnings across these networks and delivers them to users for workflow evaluation, monitoring and continuous improvement. We are currently delivering on multi-million dollar contracts for R&D in mRNA and RNA vaccines, and for public health and emergency coordination, with plans to expand into broader life sciences and drug development

============== Roles ==============

ML/AI Engineer – Design and ship LLM-powered retrieval pipelines, multi-agent orchestration, and model-evaluation loops.

Software Architect – Own backend & cloud architecture for our multi-tenant SaaS (FastAPI/Node, AWS, Kubernetes, CI/CD, security).

============== What we’re after ==============

• 2 + yrs prod ML (Engineer) or 5 + yrs distributed systems (Architect)

• Strong Python (PyTorch/TensorFlow) or JS/TS; cloud deployment chops

• Startup-ready: comfortable with ambiguity, fast iteration, and ownership

==============

Benefits: company-paid health (you + dependents), equity with upside. No visa sponsorship right now.

Tracfox | Software Engineer | REMOTE (UK) | Full-Time/Flexible

Tracfox is building an AI-native compliance platform focused on financial markets and regulatory compliance automation. We are an early stage start-up, looking for software engineers to join our technical team as we bootstrap our product development and grow the company from scratch.

We believe in elegant design and clean code, and are seeking to build a culture focused on kindness, collaboration, and technical excellence, while avoiding office politics, unnecessary meetings, and corporate BS. We want to work with friendly and clever people, build interesting things, and share our successes across a hard-working team.

Current stack:

* Backend - Python (FastAPI, Pika, LangGraph)

* Frontend - Typescript (React, MUI, Vite)

* Infrastructure - Docker, Kubernetes, Helm, PostgreSQL, RabbitMQ, Redis, OpenSearch

We are remote first, accommodate flexible working, and can offer both salary and equity.

Email: whoishiring[at]tracfox.com

Xeotek Inc. | (Senior) Sales Engineer / Manager | Onsite (San Jose, CA) | Full-Time | $110K–140K + Commission + Equity

Xeotek is building the first native Data Streamhouse – an enterprise platform that unifies real-time data streaming, analytics, governance, and infrastructure monitoring. It empowers platform teams to simplify operations, run their data streaming environments reliably, securely, and compliantly, and increase developer adoption—across every cluster and environment.

We’re hiring a (Senior) Sales Engineer / Manager to join our U.S. founding team in Silicon Valley. This hybrid role combines outbound sales with technical pre-sales. You’ll lead our U.S. outbound motion, own strategic customer conversations, and deliver demos that connect product capabilities to real-world outcomes.

What you’ll do:

– Own and build outbound sales strategy (emails, calls, LinkedIn)

– Lead technical discovery and deliver product demos

– Build demo scripts, workflows, and reusable content

What we’re looking for:

– 3+ years in sales engineering, B2B SaaS, or technical pre-sales

– Strong outbound mindset and hands-on deal experience

– Understanding of Kafka, Flink, cloud platforms, and modern data infra

– Ability to explain technical solutions to business and tech stakeholders

– Independent, structured work style with startup mentality

– Must be based in the Bay Area (San Jose, CA)

– onsite culture

Compensation:

$110,000–140,000 base salary + performance-based commission + stock options

Comprehensive health insurance

25+ PTO days including holidays and year-end break

Office with great coffee, snacks, team lunches & events

High-growth path with full ownership from day one

Location: Onsite (San Jose, CA)

Apply: https://careers.xeotek.com

Learn more: https://www.kadeck.com

ko-br | Chief Commercial Officer (CCO) | Europe/London (preferred) | Equity + Leadership Role

We’re ko-br – a London-based AI robotics startup on a mission to end the "3AM cobot meltdown" in warehouses. Our robots handle real-world chaos (grip slips, conveyor jams, dust storms) through:

* No-code AI that plugs into ABB/KUKA/UR arms

* Self-recovery protocols proven to reduce emergency calls by 85%

* Human-taught systems that turn warehouse teams into robot mentors

Why This Matters

Industrial robots keep failing when faced with mixed SKUs or shifted pallets. We’re fighting this $35B conformity crisis (see manifesto) by building robots that adapt to humans – not the other way around.

We Need You If You’ve…

* Scaled commercial ops in industrial tech/robotics/AI

* Closed 6-7 figure deals within the logistics space

* Built partner ecosystems around OEMs like ABB/KUKA

* Crave building vs. babysitting (this is hands-on founding role)

Founding Team

* Founder: Ex-Amazon/Meta ML engineer, expertise in ML infrastructure, computer vision, distributed systems, and building Internet-scale ML pipelines.

* Team: 40+ years combined expertise in VR, ML, robotics, MLOps, data annotation and cybersecurity

Apply

Email hiring@ko-br.com with subject “CCO REBELLION” + 2-sentence pitch on how you’d attack our £1B market playbook.

Manifesto: https://ko-br.com/manifesto

Felt | Growth Product Manager | Oakland, CA | Full Time | https://felt.com

Felt is building a cloud-based geographic information systems (GIS) solution and have hundreds of customers already using it to run their operations, processing terabytes of data. Our team hails from Uber, Google, Meta, CARTO, Mapbox, The New York Times and a few others. If you have used online maps in the past few years, you have used their work. My co-founder and CEO, Sam, is a former YC founder who sold his previous company [1] and I'm an early Uber engineer.

For the first time, we are hiring a product manager that is going to be focused on our growth funnels within our service. This person will own the onboarding journey and help those first-time customers become loyal users. This role comes at a special time where we have launched a brand new version of our SDKs and APIs where customers, especially in large enterprises, can fully integrate Felt into their own tooling [2]

Ideal candidates will have 4+ years of experience focus on growth and onboarding within B2B SaaS and/or PLG companies. They will have a proven track record, own metrics such as time to value, be comfortable owning touchpoints, and designing and running experiments.

As mentioned, this role is the first product role at our fast growing company and will have strong leadership potential. You'll be joining a team that's build groundbreaking tools before, and is on the cusp of doing it again.

We are well-funded with a long runway and a strong revenue funnel already. You can read more about it our first funding here [3], and our announcement here [4]. Our terms are employee-friendly terms such as early exercise, a 10-year exercise window and even a matching 401(k).[5]

If you are interested, please reach out via hello@felt.com and mention HN and the role you are applying to. This role is based in SF Bay Area, in our Oakland office that's right next to the BART station. [6]

[1] https://techcrunch.com/2021/03/09/via-buys-mapping-startup-r... [2] https://felt.com/blog/build-mapping-apps-with-felts-apis [3] https://techcrunch.com/2022/05/31/felt-maps-15-million-serie... [4] https://felt.com/blog/public-beta-15m-series-a [5] https://felt.com/careers [6] https://felt.com/map/Felt-HQ-IX9C6uwPnTPCrVVMchyjGcA?loc=37....

Fullstory | Atlanta or Remote (US) | https://www.fullstory.com/

Fullstory provides privacy-preserving session replay and analytics for websites and mobile apps. Our session replays are nothing short of magical - they look almost like a video of the user's screen - and the combination with analytics creates eye-opening insights.

We have two engineering roles open:

* Senior Software Engineer, iOS - Objective-C, Rust, small amounts of Swift, and other languages. Note that we're not building apps. It's about taking things apart, seeing what makes them tick, and figuring out how to extract the data we need without negatively impacting the app experience. (Or using any private APIs!) It's part reverse engineering, part systems programming, and part library development. - $176,000 to $207,500 - https://www.fullstory.com/careers/jobs/ab3f8ecb-ee1f-4431-a0...

* Senior Software Engineer, Application Experience - TypeScript, React, Go (Golang). Our customers love Fullstory, and part of that is because of the application experience. You'll be working on the features, workflows, UX, and design system - $160,000 to $190,000 - https://www.fullstory.com/careers/jobs/1a014b19-d805-4547-9a...

...and a few roles in other categories, see https://www.fullstory.com/careers/ for the full list and some general info.

In addition to the listed pay ranges, you can expect regular raises & bonuses, equity, and benefits including: health insurance, 401k matching (Vanguard), annual learning stipend, unlimited PTO, and more. I take about 5 weeks vacation a year, in addition to ~3 weeks worth of company holidays (federal holidays + the week of Christmas to New Years.)

You also get a 5-week sabbatical after 5 years of employment - I just took mine at the end of last year, and it was fantastic.

To apply, please submit your info on the website. If you have questions, feel free to reply here or email nathan@[company website].com.

Temporal Technologies | Multiple positions in United States - WORK FROM HOME | FULL-TIME |

Temporal offers an entirely new way to build scalable and reliable applications. Temporal enables developers to focus on writing important business logic, and not on managing state or worrying about the underlying infrastructure. Sequoia Capital led our last round of funding and our team has experience from start-ups and larger companies like Microsoft, Google, Amazon, Uber, and more.

Temporal’s Series C Funding Announcement: https://temporal.io/blog/temporal-series-c-announcement

Temporal in 7 minutes: https://temporal.io/tldr

We're looking for senior level engineers for multiple roles - see here - https://www.temporal.io/careers

FEATURED ROLES:

Senior Developer Success Engineer → https://grnh.se/ed5cec6a7us

Staff Software Engineer, Traffic → https://grnh.se/1cbb896d7us

Staff Software Engineer, Cloud Infrastructure → https://grnh.se/8b0ba8347us

Staff Infrastructure Engineer, Cloud Data Storage → https://grnh.se/17b461a57us

Staff Application Security Engineer → https://grnh.se/402ff79d7us

Senior Product Manager, SDK & Developer Primitives → https://grnh.se/2e82af137us

Senior Staff Product Manager, AI → https://grnh.se/043f6c967us

Staff Developer Advocate, AI - San Francisco → https://grnh.se/00dec64f7us

US benefits include: Unlimited PTO, 12 Holidays + 2 Floating Holidays, 100% Premiums Coverage for Medical, Dental, and Vision, AD&D, LT & ST Disability and Life Insurance , Empower 401K Plan, Additional Perks for Learning & Development, Lifestyle Spending, In-Home Office Setup, Professional Memberships, WFH Meals, Internet Stipend and more! Benefits outside the United States vary by country.