Sign up
Which kinds of involvement are you interested in?
What's your preference for remote vs on-site?
Which technologies are you interested in?
Language
Backend
Frontend
Platform
Infrastructure
Other

319 matching jobs

  • JavaScript
  • TypeScript
  • Node.js
  • React
  • Remote

Prove AI| AI Management start up| Fully Remote | Full time (B2b or employed if in US, UK or Switzerland)| Seeking Full Stack and Senior Full Stack Developers

Prove AI is an AI management platform that helps organizations centralize and manage their AI models while maintaining strict oversight of data access and usage. Built on distributed ledger technology, Prove AI provides tamper-proof oversight, ensuring organizations can set and enforce guardrails to mitigate risk and optimize AI performance.

This is a hands-on engineering role for someone excited about crafting production-grade software, solving complex problems, and contributing to a high-performing product and engineering team. As a Full Stack Developer you will work across the stack—primarily using TypeScript, React, and Node.js—with opportunities to contribute to both backend systems and frontend interfaces. While the role values frontend capability, strong backend engineering experience is essential to support our API layer, data processing, and system integrations.

To apply please apply directly via this link https://proveai.careers.hibob.com/jobs/1a652b22-bdf9-438a-a9... (please ignore location as we are fully remote and will accept applications from any location or contact Richard Morrow - richard@proveai.com

  • JavaScript
  • Python
  • FastAPI
  • PyTorch
  • Windows
  • Machine Learning
  • Full-time
  • Contract
  • Remote

Stealth Solar Tech Startup | Remote (EU-friendly) | Full-time or Contract

We are a well-funded stealth startup building a B2C platform to radically reform the U.S. residential solar industry. Our mission is to combat pervasive consumer distrust and inefficiencies by empowering homeowners with a transparent, high-fidelity, and interactive 3D solar design tool. We are a small, dedicated team working closely with an established industry partner for rapid, real-world testing and iteration.

We are looking for a Senior 2D/3D Computer Vision Engineer to build the core technology that makes our platform possible. The central challenge is to automatically generate clean, geometrically accurate, and simplified 3D roof models from raw aerial Digital Surface Models (DSM) and RGB data. Your work will be the foundation of our user experience, replacing the opaque and slow manual processes that dominate the solar industry today.

As the owner of this domain, you will ideally:

• Define the Process: Take charge of the entire ML pipeline, from R&D to production. This includes refining the annotation process and enhancing our existing Three.js-based 3D annotation tool to build a high-quality, large-scale dataset.

• Build the Models: Research, develop, and train a suite of models to handle roofprint segmentation, structured prediction of planar roof wireframes from point clouds, and detection/classification of roof obstructions (chimneys, pipes, windows, etc.).

• Ship to Production: Engineer a scalable and robust inference pipeline that can process new properties on demand.

Our stack is Python, PyTorch, FastAPI, Rasterio/GDAL, and JavaScript/Three.js for the annotation tool. We are looking for a pragmatic and experienced engineer who loves tackling complex 3D vision problems. You should be comfortable with both 2D and 3D data (especially point clouds and geospatial imagery) and have a proven track record of delivering end-to-end ML solutions.

To apply, please email vlad@design.solar.

  • Full-time
  • Hybrid
  • On-site

Polar Sky | Founding AI Lead | Bay Area/Seattle | Hybrid/Onsite | Full-time

We're a well-funded, pre-seed cybersecurity startup focused on data security. I'm looking for a founding AI lead with experience in fine-tuning LLMs (expertise around RL + reasoning models a big plus). This person would own the full AI stack from data to training to eval to test-time compute.

Who's a good fit:

* If you've always thought about starting a company, but for whatever reason (funding, life, idea), this is a great opportunity to be part of the founding team. We're 2 people right now.

* You enjoy understanding customer problems and their use cases, and then figuring out the best solution (sometimes technical, sometimes not) to their problems.

* You want to help figure out what a company looks like in this AI era.

* You enjoy teaching and sharing knowledge.

Questions, interest, just email jobs@polarsky.ai.

Posted 16 days ago by rdli

  • Node.js
  • PostgreSQL
  • React
  • Full-time
  • On-site

EAGL | Ghent, Belgium | Onsite | Full-Time

EAGL is a fintech startup that unifies controlling and accounting with AI-powered agents that automate close processes, flag anomalies, and clean P&L so finance teams can focus on strategy, not spreadsheets.

https://www.geteagl.com info@geteagl.com

We're looking for full-stack (Frontend, Backend, AI) profiles that want to dive into the fintech world. Node, react, postgres, ...

  • Machine Learning
  • Full-time
  • Hybrid
  • On-site

Stile Education | Melbourne, Australia | Hybrid/Onsite | Full-Time https://stileeducation.com/au/who-we-are/engineering-at-stil...

We're high-performing, diverse, tight-knit team with a mission to radically improve mainstream science and maths education at schools. By creating the best lessons in the world, coupled with intuitive tools that allow teachers to take advantage of the latest pedagogies, we’ve already helped millions of students in Australia get excited about science and maths.

45% of Australian science students in years 7-10 use Stile. Help us scale from 500k to more than 5 million students across Australia and the US over the next two years!

We now have offices in Melbourne, Boston, Portland and more! We're primarily hiring in Melbourne (relocation assistance and visa sponsorship available), but there will be lots of travel opportunities.

We're looking for a bunch of new roles right now (not all on our jobs site yet; please reach out if you're interested even if you don't seem to fit a specific role!):

  - Engineering manager
  - Full Stack Staff Engineer
  - Platform engineer
  - ML/AI engineer
  - Automation engineer
  - Principal+ engineer
  - Frontend engineer
  • Rust
  • Redis
  • Machine Learning
  • Full-time
  • Hybrid

iGent AI | Senior/Staff Engineers | London, UK (Hybrid, 3 days/week) | Full-time | https://igent.ai

Hi! Co-founder of iGent AI here. We build agentic systems for large-scale, industrial projects, and an agentic cloud. Proof: our agent built a Redis-compatible database in Rust, with no human coding, in 70 man-hours – see https://www.igent.ai/insights/production-database-server

Why join:

  • Small, senior team: ex-DeepMind, OpenAI, Microsoft Research, Amazon, and Cambridge University

  • Hard problems across distributed systems, OS/sandboxing, ML and LLM inference/post‑training. Real users; ship to prod.

  • Big Tech salary + options.
Open roles (all Senior/Staff; hands-on):

  • Full-Stack - design and build the new agentic interface, with top designer

  • Agent Infrastructure - branching sandboxes, filesystems, orchestration, observability

  • Backend / Eng Lead - build cloud from first principles; distribution, sync, load-balancing, events

  • LLM inference & post-training - long context tech, RL, vLLM, performance
  • Devrel & GTM – live-developing, tutorials, OSS/community, hackathons - drive adoption
You might be a fit if you have:

  - 5+ years building and operating production systems (or exceptional evidence).

  - Own 0→1 projects; comfortable reading & generating lots of code.

  - Public work (OSS/papers/blogs/products) or strong portfolio.
Apply! https://www.igent.ai/join-us
  • Clojure
  • Elixir
  • PostgreSQL
  • React
  • Machine Learning
  • Remote

Phrasing | https://phrasing.app | EU Remote | Co-founder

Phrasing is the best way to learn and maintain multiple languages [1]. With support for over 120 languages, science-based methodologies, and a beautiful custom built UI, Phrasing make’s it easier than ever to learn a language… or 10.

Phrasing is built with Elixir on the backend (lots of Broadway, FLAME, Nx and Scholar) with a ClojureScript front end. Everything is stored in a single Postgres database hosted with neon. I’m moving some code to a commons library, with the end goal of using Clojure as an isomorphic solution to run the same code on web, server, and mobile (<1% of the codebase, just the critical logic). The front-end is moving from Reagent+React to HSX+Preact+Preact Signals, although that’s going to be a long and slow migration.

Phrasing is my attempt to do something different [2], from both a product and a business perspective. No investments, no hyper scaling, no growth hacking — just tripling down on building the most effective application to learn a language.

Phrasing is launched, live, has some DAUs and MRR. However, long ago I’ve reached the limit of what one developer can do. I’m looking for someone to

  - come on board and take over the entire Elixir codebase
  - watch the Broadway Pipelines, and not sleep if there are any failing checkpoints 
  - optimize request times, reduce database pressure, and speed up extraction times
  - work with me to restructure things to reduce costs/complexity
  - work towards training novel embedding spaces, custom classic ML/NLP models, and long term algorithmic improvements to the SRS [3]
  - see this as a fun challenge, and have enough ownership of the product that I can focus on some user facing developments [4]
Please note, I’m not looking to hire an engineer to work a 9-5, and I am in no hurry to hire someone soon. I’m looking for a co-founder to come on board, take ownership and accelerate the product. The product is built, working, and growing organically. While there is some MRR, the position will be rev-share & equity focused until the business produces enough for full salaries.

To apply, please send an introduction hn at phrasing dot app. I will not be interviewing until the 12th of September, and no priority will be given to earlier or later applicants, so there is no rush. A sincere, well-written introduction is your best way to get an interview. No experience is required for this role, so long as you’re competent and hungry.

[1] https://phrasing.app/blog/multiple-languages [2] https://phrasing.app/blog/mission [3] https://phrasing.app/blog/humane-srs [4] https://phrasing.app/blog/a-dream-of-three-vector-spaces [5] https://x.com/barrelltech [6] https://reddit.com/u/phrasingapp

  • Go
  • Python
  • AWS
  • Machine Learning
  • On-site

Coachcube | https://coachcube.ai | Mid to Senior ML Engineer and CV Engineer | Onsite London

Coachcube is new gym product providing a virtual PT service. We have an experienced senior leadership team and are building a hardware/software product using digital motors, camera vision and ML to design a next-generation weight-lifting product. If you like fitness and ML, reach out for a chat!

The ideal candidate:

  - Can ship quickly

  - Highly inquisitive but also motivated to deliver

  - Comfortable moving across domains

  - Understands fitness/weight lifting

  - Up for a challenge
Tech Stack: Go, AWS, Unity, Python, Claude Code

email: hello@coachcube.ai

  • Go
  • Python
  • CockroachDB
  • Redis
  • React
  • Remote
  • Hybrid

Stream | Multiple Positions | Amsterdam (NL), Skopje (Macedonia) | Boulder, CO (US) | Toronto (Canada)) | 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:

* Staff Python Engineer – Open Source Video/Voice AI Library

* Senior React Native SDK Engineer

* Staff Product Designer

* WebRTC SFU Engineer

* Director of Information Security

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, US, or CA-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

  • Go
  • Python
  • Hybrid

V7 | www.v7labs.com | London or New York | Hybrid

_______

Growth Hacker - https://bit.ly/41wPdmH

* You're not just a growth marketer. You’re a full-stack creative operator. * You’ve probably done things like:

* Run playbooks that didn’t exist yet * Gotten products featured on Times Square billboards and Reddit threads * Built shareable mini-tools that turned into full-on acquisition channels * Sent physical mailers that turned into million-dollar pipeline * Landed your company on 10+ podcasts in a quarter * Have taken a product from 0–1m+ MAUs or scaled growth to $5m–$20m ARR * Built acquisition loops from scratch * Know how to make technical content go viral * Are a creative thinker with deep operational range * Can juggle many ideas, experiments, and channels at once

____________

AI Engineer (Building Agents Product) - https://bit.ly/3HWgici

* Build LLM agents for document understanding, search, and image recognition that go from prototype to production fast

* Write clean, tested Python code that scales—no research papers, just working AI features

* Collaborate with AI and product teams to iterate on solutions that customers actually use

  • Go
  • JavaScript
  • TypeScript
  • REST
  • Next.js
  • Tailwind
  • Full-time
  • Hybrid

JustWatch | Frontend Engineer (Junior–Mid) | Berlin | Full-time | HYBRID (2–3 days office, rest remote)

At JustWatch, we’re focus on being the best at marketing in the global entertainment industry. Our Martech team develops internal tools that help us achieve that goal, creating automations to help our own campaign managers inside the company.

You’ll work on our Business Dashboard (Next.js), leading projects end-to-end while collaborating with designers, stakeholders, and other dev teams. We’re looking for a frontend engineer who enjoys solving problems, thrives on collaboration and focus on bringing value to its users. In return, we offer a culture of trust and ownership, where you can make decisions without bureaucracy and really focus on the value you are delivering. Based in Berlin, we have an awesome office that you don’t need to go, but you will want to.

Our tech stack: Next, Typescript, Tailwind

https://www.justwatch.com/talent/jobs/tech/junior-mid-level-...

  • Machine Learning
  • Remote
  • On-site

Rappo | https://buildrappo.com | Founding Applied AI Engineer | Remote or Onsite SF

Hi, we have been working on a personal assistant for knowledge professionals. A lot of challenges around building an advanced RAG, improving reasoning, and custom models

Learn more about the role: https://wellfound.com/jobs/3382533-senior-ai-ml-engineer or email vignesh@buildrappo.com

PS: I am a solo founder, and we are generous with equity

  • Go
  • On-site

Y Combinator (yes, the people who run this site) | Full stack web and AI | San Francisco | Onsite | Fulltime

YC itself hires software engineers from time to time. Many people don't know that YC has a small but very important software team. We run several websites - not just this one, but also workatastartup.com (the main way YC companies hire), a social network for YC founders, and the core infrastructure that YC itself runs on.

Recently, we've been spending most of our time building our own AI agents. Over the last year, YC has mostly funded AI agent companies, so it's been cool to go really deep building our own AI agents too. We're building agents to automate every aspect of what we do, and pushing the limits of what's possible with the current models to do it.

An unusual aspect of being on the YC software team is that you'll get full access to the YC program, founders and partners. The YC batch runs in the same building we work out of, so there are talks with famous founders happening most nights, right downstairs in our building. If you want to start a startup someday, working at YC would be an excellent jumping off point - several YC companies have come from team members who decided to start their own company.

YC works fully in-person in SF. We're happy to help you move here if you're in the US already. Unfortunately we can't sponsor new visas, but we're happy to transfer existing ones.

YC offers highly competitive compensation and benefits.

You can apply online (https://www.ycombinator.com/careers) or just email me at jared@ycombinator.com

  • Full-time
  • Remote
  • Hybrid

We are LIFEPOWR! Antwerp (Belgium) | Full-time | Remote (Europe) or hybrid (Antwerp) | https://www.lifepowr.io/en/about-us/career

A young and dynamic company, active in energy transition and scaling up!

We are looking for a OPS Application & AI Developer

Your role will be:

-Customizing and maintaining our ERP platform hosted on Odoo.sh

-Developing custom modules, integrating third-party tools, optimizing workflows

-Supporting our internal teams with technical solutions

Send your back-end development expertise and your understanding of Odoo.sh!

Make sure to send your resume, GitHub profile (if available), and examples of past Odoo customizations to david@lifepowr.io, including “OPS Application & AI Developer - Hacker news” in the subject line.

  • C
  • C++
  • JavaScript
  • TypeScript
  • Node.js
  • Docker
  • Remote

Undetect.io | Counter-Security / Reverse Engineer | Full Time / Part Time | Remote, Global

We're looking for a TypeScript engineer to join our team with a tight focus on stealth browser automation tools and RE / adversary intelligence pipelines.

You should have:

• Strong TypeScript, Node.js, CDP (Chrome Devtools Protocol) experience.

• Interest in C++ and Chromium internals.

• Experience evading or analyzing anti-bot and WAF systems.

• Practical experience reverse engineering & deobfuscation of heavily obfuscated / defended JavaScript.

• Intermediate / advanced understanding of browser fingerprinting and distributed proxy systems (or eagerness to learn).

• Able to provide examples of clean, maintainable code.

• Familiarity with Docker, Cloudflare Workers, and basic devops.

We're a lean, fast-moving team working on hard problems with real-world impact for enterprise clients, including many Y-Combinator success stories.

Email us: careers@undetect.io

  • Python
  • MySQL
  • Node.js
  • PyTorch
  • React
  • AWS
  • Machine Learning
  • Full-time
  • On-site

Kaedim | Software Engineer, Machine Learning Engineer, Customer Support Engineer, Product Manager, Founding Recruiter | Onsite | Full-time | San Francisco, Singapore, London | US & UK Sponsorship Available Kaedim is an AI startup building ML algorithms that turn images into digital 3d models. We are a group of ~10 looking to grow the team to help streamline 3d content creation for 3d artists and are already working with 1 of the top 10 games of all time! Using our AI and in-house art team, we have the most accurate, game-ready 2d → 3d asset generation pipeline. Currently, we are offering a 10x speed up to 3D asset creation pipelines of 200+ game developers and we are working with partners like Voodoo, Upland, Azra Games. Check out our demo here: https://www.youtube.com/watch?v=tlQWFG1DLb0

Job descriptions and application link: https://join-kaedim.notion.site/

Tech Stack:

Product (web app, API): React, MySQL, NodeJS, Python, AWS

Machine Learning: Python, PyTorch, AWS

  • Python
  • TypeScript
  • Kubernetes
  • Full-time
  • Remote

CredCore | Engineering | Full-time | US(East preferred)/India | www.credcore.com

CredCore helps companies analyze Credit Agreements using AI. We are looking to hire an Engineering Lead with 10+ years of experience. You should be familiar with design patterns and software architecture, infra/kubernetes, and TypeScript/Python. If you’re interested, please reach out to us at careers@credcore.com.

A cover letter is not necessary. But please share your resume and links to your GitHub/GitLab/StackOverflow/other profile, or blog/papers, or other portfolio we can review before setting up the interviews.

  • Ruby
  • Ruby on Rails
  • React
  • Hybrid

fleming.de | Full Stack Engineer | Magdeburg, Berlin, Hybrid (Germany) | Full Time | German required

Fleming (www.fleming.de) is digitalizing financing for health professionals. We are building and maintaining a React-Native / Nestjs based bank account frontend and a Salesforce base loan sales platform with a Ruby on Rails frontend. We are looking for a well-rounded engineer. You don't have to know the technologies we are using if you bring the conceptual knowledge and the drive to learn.

Some German language knowledge is required since you are going to build German UIs

more info: https://fleming.de/jobs/

Contact jobs@fleming.de

  • 60k–80k EUR
  • On-site

Moyai | Amsterdam, The Netherlands | Full Time | Onsite | Founding AI Engineer | 60k-80k + Equity

About the company:

• Technical founding team with relevant industry experience (part of Nvidia Inception Program)

• Backed by well-known European VCs (SpeedInvest+Galion.exe)

• Building agentic advanced analytics and fine-tuning analytical reasoning models

Ideal candidate:

• Demonstrated shipping ability with past projects & roles

• "Young and hungry” mindset, prioritising ability to learn with agency over experience

• Familiar with fine-tuning algorithms and frameworks, transformers/trl, ART, verl and unsloth

• Bonus points for experience in contributing to open-source projects, startups, AI agents, & similar technologies

Reach out to the founder directly: https://www.linkedin.com/in/rhommes/

  • C
  • C++
  • JavaScript
  • Python
  • TypeScript
  • Jupyter
  • WebGL
  • Linux
  • On-site

ELI Beamlines (ELI ERIC) | Dolní Břežany (Prague), Czech Republic | Onsite (with HO) | Full‑time

We operate one of the world’s leading high‑power laser research facilities (up to 10 PW) and support an international user community. We’re hiring:

• Director for Technology Lead the Technology Division (laser beam transport, instrumentation, engineering services, control systems, data infrastructure). Set the technical roadmap, grow teams, and ensure reliability and integration across the facility. Apply: https://www.eli-beams.eu/careers/director-for-technology/

• SW Control Systems Developer Join the Controls Hardware Integration team. Build and maintain device control & data‑acquisition for lasers/beamlines (EPICS). Write IOCs/services in C/C++/Python, integrate hardware, and collaborate with scientists on Linux. Apply: https://www.eli-beams.eu/careers/sw-control-systems-develope...

• Web Developer for Data Visualization Build interactive tools and UIs that help researchers visualize experiment data and plan setups (from dashboards to 3D/WebGL). Work across Python backends & modern JS frontends; design clean APIs; familiarity with Jupyter/three.js/D3 a plus. Apply: https://www.eli-beams.eu/careers/web-developer-for-data-visu...

• Safety Systems Engineer (PLC / Interlocks) Own the PLC‑based Personal Safety Interlock (PSI): define state logic, supervise installation/upgrades with suppliers, commission new areas, and keep documentation, testing and availability tight. Apply: https://www.eli-beams.eu/careers/safety-systems-engineer-152...

How we hire: CV → HR pre‑screen → interviews (in‑person or Webex). Questions? Email HR: jana.zeniskova@eli-beams.eu Or me with technical ones vojtech.gaman@eli-beams.eu

About us: ~350 people from 38+ countries; easy public‑transport commute from Prague. Keywords: EPICS, Python, Linux, PLC/Safety, JavaScript/TypeScript, Git.