Zalion | Founding AI Engineer | London / Remote (Europe) | Full-time

Zalion is building a platform to build, deploy, evaluate, and scale AI agents for procurement. We’re live, bootstrapped, and solving real problems for manufacturers.

We’re looking for a founding engineer to: - Build core agent infrastructure (LangGraph, tool use, prompt ops, vector search) - Deploy real-world agents that negotiate, analyze, and explain - Shape the product and scale with live customer feedback

You: Python + LLMs. Startup-ready. LangGraph/LangChain experience is a big plus.

Perks: Founding equity, competitive pay, fully remote (EU), high ownership. Apply → https://zalion.notion.site/Senior-AI-Founding-Engineer-Job-D...

San Francisco, CA; Full-time & Onsite; Member of technical staff.

I'm the cofounder of Krea (https://www.krea.ai/), a startup in San Francisco building browser-based creative tools and AI systems focused on personalization, controllability, aesthetics, and speed. We are also working real-time video models and world models.

Some customers: Pixar, Shopify, Fox News, Amazon Studios.

We are ~15 technical staff members (https://www.krea.ai/careers) looking for others interested in tackling challenges in the creative tooling (with AI) space. We have a lot of GPUs and plan on getting more.

Some challenges: large-scale training of diffusion models; post-training such models using techniques like DPO; UI testing framework to simulate user actions; distillation of state-of-the-art models like Flux to achieve real-time performance at inference-time; zero-downtime and blue-green deployments; recommendation systems for user-content; vector-based search API for filtering through millions of user assets; multi-cloud multi-cluster infrastructure management; enterprise-grade granular access control similar to how Linux ACLs work.

Some investors: cofounder of Meta/Facebook AI Research, founding member of OpenAI, a16z.

Our tech stack: CUDA, PyTorch, Kubernetes, Tigris, Node, Svelte(Kit), WebGL/WebGPU/WASM, Python, Ceph.

If you want to learn more or meet up to talk about creative tooling or research, email me at d@krea.ai.

More Optimal | Software / R&D engineer | The Netherlands (Den Bosch) | HYBRID (min. 3 days in-office)

More Optimal provides a low-code environment specifically aimed at Operations Researchers who use our platform to solve the most difficult planning and optimization challenges in the world. For our R&D department we are looking for an engineer who is enthusiastic about working on a complex system, solving puzzles and loves complex programming challenges, to make More Optimal even more loved by our customers as well as implementation partners.

In our R&D team you will be able to work on a very diverse combination of problems depending on your preferences: frontend, backend, advanced algorithms and infrastructure. We are a fast-growing company where you can make a real impact quickly.

Tech stack: TS/JS (primarily), Java/Kotlin, Python, Go, Rust, GCP

For now, we're only considering candidates who already have a connection to the Netherlands (e.g., those who have worked, studied, or lived here previously). Feel free to contact me directly (timo@moreoptimal.com) if you have any questions about the job opening.

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

IP Copilot | Software Engineer - Integrations (Python/Ruby) | Full-Time | Remote (US) | US Citizen | https://ipcopilot.ai

IP Copilot is an AI platform that discovers patentable innovations in real time and streamlines the patent process for enterprises, universities, and law firms. Fresh off a September 2024 seed round, our nine-person, fully-remote team (ex-researchers with 1,000+ patents and multiple enterprise launches) is hiring a back-end engineer to own integrations into our Python/Ruby API and third-party services, harden our AWS/PostgreSQL infrastructure, and ship features that automate patent workflows. You’ll collaborate with ML, design, and business teammates, meet power users, set the roadmap, and build thoroughly tested, monitored services—all while wearing the many hats that come with an early-stage startup.

Perks: excellent health/dental/mental-health coverage, equity, competitive salary, unlimited vacation, mentorship, and real ownership.

Apply via email: jeremy . goodsitt - at - ipcopilot.ai

Stellar Science | Hybrid (USA) Albuquerque NM, Washington DC (Tysons VA), Dayton OH | Full time, interns/co-ops | U.S. citizenship required | https://www.stellarscience.com

Company: We're a small scientific software development company that develops custom scientific and engineering analysis applications in domains including: space situational awareness (monitoring the locations, health and status of on-orbit satellites), image simulation, high power microwave systems, modeling and simulation, laser systems modeling, AI/ML including physics-informed neural networks (PINN), human body thermoregulation, computer vision and image processing, high performance computing (HPC), computer aided design (CAD), and more. All exciting applications and no CRUD. We emphasize high quality code and lightweight processes that free software engineers to be productive.

Experience: Other than interns, we currently require a Bachelors degree in physics, engineering, math, computer science, or a related field, plus preferably 3+ years of work experience or a Masters or PhD in lieu of work experience. (Roughly 30% of our staff have PhDs.)

Technologies: Mostly C++23, Qt 6.5-6.9, CMake, git, OpenGL, CUDA, Boost, Jenkins. Windows and Linux, msvc/gcc/clang/clangcl. AI/ML and other projects use Python, some use Java or Javascript/Typescript/React.

Apply online at https://www.stellarscience.com/careers/.

DeepAI | Software Engineer (Full Stack, Django, AWS) | Remote | Contract (W2 or 1099) | Ongoing

DeepAI is the all-in-one creative AI platform: generate images, edit photos, chat with AI (web browsing, voice), create videos and music, all in your browser. We focus on accessibility, affordability, and fun.

What you'll do: - Build and upgrade core features (chat, image, video, etc) - Work full stack: Django, AWS, MySQL, vanilla JS (no frameworks) - Mix of new features and legacy code

You: - 3+ years coding professionally - Strong Python/Django - Comfortable with vanilla JS - AWS/cloud experience - Bonus: Docker, MySQL, LLM APIs, AI/ML interest

Team: - 10 people, work directly with founders - Fun, creative culture - Flexible, ongoing contract (W2 or 1099)

Compensation: - Usually hourly, $50-200/hour. Equity or full time is possible.

To apply: Email team@deepai.org with resume, GitHub, and a short note (mention HN).

Note, we're also hiring for technical customer support roles.

Promptfoo | Senior/Staff Engineers, Former Technical Founders & Experienced Operators | Remote (US time zones) / Hybrid San Mateo CA | Full-time

Promptfoo is the MIT-licensed open-source toolkit 100 k+ developers use to evaluate and secure their LLM apps. We are funded by top investors and operate as a tight, all-senior team of high-agency builders, former founders, and owner-operators.

10+ open roles - Senior Full-stack Product Engineer (TypeScript + Python) - Solutions Engineer / Architect (multiple positions available). - Senior / Staff Applied-ML & LLM Security Engineer - Red-Team Researcher - Developer Advocate / DevRel - COO / Chief of Staff - Product Marketing (Cybersecurity experience preferred) - Account Executives (Cybersecurity sales background preferred, Bay Area Required)

Even if none of these titles fit exactly, reach out — we hire great builders.

How to apply

  1. Skim https://github.com/promptfoo/promptfoo and run  
     `npx promptfoo@latest init --example getting-started`  
  2. Email careers@promptfoo.dev with subject line “HN” and a short, personalized intro  
     (LinkedIn, resume, or GitHub link welcome).  
  3. I reply to every thoughtful application and will send swag if you try (or contribute to) Promptfoo.  
     – Michael, co-founder/CTO

BCC | Platform Systems Engineers | Bethesda MD | ONSITE or REMOTE, VISA | Competitive compensation! | https://www.ncbi.nlm.nih.gov

Black Canyon Consulting (BCC) is hiring Platform Systems Engineers of all levels to join our team at the National Center for Biotechnology Information (NCBI). Our team is dedicated to building cutting-edge tools and systems. Our mission is to empower developers across NCBI to build, deploy, and manage software, data, and web services that make a real difference in the lives of millions of Americans.

Your contributions will play a crucial role in modernizing government technology infrastructure, fostering innovation, and ultimately making a tangible impact on communities across the country and globally. This is your chance to be part of a mission-driven team that’s shaping the future of digital government.

Tech: Linux, k8s, Service Mesh, Kafka, GitLab, ArgoCD, Elastic APM, Python, C++

DevEx Eng: https://job-boards.greenhouse.io/blackcanyonconsulting/jobs/... Sr DevEx Eng: https://job-boards.greenhouse.io/blackcanyonconsulting/jobs/...

DataOps Eng: https://job-boards.greenhouse.io/blackcanyonconsulting/jobs/... Sr DataOps Eng: https://job-boards.greenhouse.io/blackcanyonconsulting/jobs/...

Plaform Eng Manager: https://job-boards.greenhouse.io/blackcanyonconsulting/jobs/...

Baton| Senior Full Stack Engineer | HYBRID |San Francisco, CA | Full-Time

Baton is building software to automate the $800B+ freight industry. We’re a small, fast-moving team inside Ryder (Fortune 500 logistics company), rethinking how freight moves with real-time visibility, automation, and AI.

We're hiring a Senior Full Stack Engineer to work across our Python/FastAPI + React/TypeScript stack. This is a hybrid role (Tues–Thurs in our Hayes Valley SF office). You'll own major projects across the stack, collaborate cross-functionally, and shape tools used at national scale.

What we offer:

- $200,000 – $250,000 base + bonus + long term cash incentives - Startup speed, enterprise scale - Modern stack (FastAPI, GraphQL, Postgres, AWS) - Perks: 401k match, ESPP, great office

Apply at: https://job-boards.greenhouse.io/baton/jobs/4623804007

Kyra Health | Python/Typescript | Remote (USA) | Full Time

We believe there is a significant opportunity to improve healthcare quality and cost for employers, employees, and insurance companies; regulatory changes and LLMs mean it is time to build. We think we can provide a better experience for less money, and have multiple positive impacts on society. We have the idea, the funding, and the skills and knowledge to make it happen. We're looking for a few more strong engineers to help us build it.

Responsibilities

- Research, plan, scope, and design solutions to difficult problems while navigating laws, regulations, and standards in money movement and healthcare.

- Produce elegant and simple code that is architected and written for the long haul.

- Speed up overall development efforts.

- Help build a development environment and operational tooling that will be the envy of companies many times our size.

Must Haves

- Strong Python or TypeScript skills, or a strong background in another dynamic language.

- A burning desire to get things out the door and in the hands of users.

- Strong communication skills.

Reach out to me at n@kyra.health, or kick the process off at https://enghiring.kyra.health

Vola Dynamics | Data Engineer | Full-time | Hybrid | https://jobs.ashbyhq.com/voladynamics

Vola Dynamics (https://voladynamics.com) is the world's most sophisticated software and quant research company for advanced options analytics. Our volatility fitter and ultra-fast option pricers are the market standard, powering decisions at the world’s leading hedge funds, proprietary trading firms, and global banks.

We’re hiring our first Data Engineer to play a pivotal role in designing and developing our next-generation data and analytics infrastructure from the ground up.

Stack: Python, Dagster, Clickhouse, Kubernetes, Polars, and Grafana.

Work style: Hybrid in NYC/CT. In-office on Tuesday and Thursday.

Apply here: https://jobs.ashbyhq.com/voladynamics or email us at "resumes [at] voladynamics [dot] com" and mention HN in the subject.

SerpApi | https://serpapi.com | Junior to Senior Fullstack Engineer multiple positions | Customer Success Engineer | Hiring Coordinator | Python/Ruby/PHP/Js/Rust/Cotlin/C#/Crystal/Nim/Elixir Developer Advocate positions | Based in Austin, TX but remote-first structure | Full-time | ONSITE or FULLY REMOTE | $150K - 180K a year 1099 for US or local avg + 20% for outside the US

SerpApi is the leading API to scrape and parse search engine results. We deeply support Google, Google Maps, Google Images, Bing, Baidu, and a lot more.

Our current stack is Ruby, Rails, MongoDB, and React.JS. We are looking for more Junior and Senior FullStack Engineers.

We have an awesome work environment: We are a remote first company (before Covid!). We do continuous integration, continuous deployments, code reviews, code pairings, profit sharing, and most of communication is async via GitHub.

We value super strongly transparency, do open books, have a public roadmap, and contribute to the EFF.

Apply at: https://serpapi.com/careers

ML6 | Machine Learning Engineer, Data Engineer | Python, TensorFlow, PyTorch, GCP, AWS, Azure | Full-time | Amsterdam, Berlin, Ghent (EU) On-site/hybrid

We are a Machine Learning consulting company that builds end-to-end Machine Learning solutions. By applying the latest AI research, we keep our clients at the forefront of innovation. If you are interested check out: https://www.ml6.eu/knowledge-hub/blog and https://www.ml6.eu/customers/cases

Work on innovative projects for the biggest clients across Europe such as Randstad, ASML, FUNKE, and many more! Whether it’s about leveraging LLMs to improve customer support, building data lakes on cloud platforms to improve storage or implementing models using sensor data for quality control. You can find it all at ML6. You will mostly work with Python and a range of ML frameworks such as TensorFlow, PyTorch, or HuggingFace Transformers to solve hard Machine Learning tasks and help bring these application into production by building data pipelines and cloud infrastructure on all of the major cloud providers (GCP, AWS, Azure).

Open roles include:

• Senior ML/Data Engineers

• Senior AI Consultants

• Senior AI Project Managers

• Industry Directors

• Junior ML/Data Engineers

and many more!

Apply now at the https://jobs.ml6.eu/

Foxglove | Onsite or Remote | Full Time or Contract | https://foxglove.dev/

Foxglove is the leading observability stack for robotics and physical AI. We accelerate robotics developers with logging, data management, and multimodal visualization. We're well funded (Series A, ~35 people) and assembling the most talented team in the industry to build a platform for all robots. Sound interesting? Join us!

** San Francisco, CA **

- ML / Robotics Engineer, Dev Relations (python, c++, rust, ros, lerobot, etc)

- Staff Frontend Engineer (typescript, rust, webgl, wasm)

** Remote / other locations (Seattle, London) **

- Forward Deployed Engineer (typescript, python, plus ideally some c++ or rust experience)

https://foxglove.dev/careers

Tecton | https://tecton.ai/ | Various roles | Remote (US/Canada), or Hybrid (San Francisco/New York City/Seattle) | Full-time

* About us * Tecton builds a platform to help enterprise customers turn their raw data into production-ready features for business-critical use cases like fraud detection, risk scoring, and personalization. With our platform, teams can refine contextual data for AI products, obtain scalable cloud infrastructure to ingest and serve it at scale, and have a centralized knowledge management and data governance system.

* Careers *

Tecton is currently hiring remotely across the US and Canada. If you live near our hubs in SF, NYC or Seattle, you can also join our workspaces and work live with the team.

Some of the challenges our Software Engineering team is tackling now include:

- Developing Rift, our proprietary compute engine to allow anyone to build real-time AI applications in native Python: https://www.tecton.ai/blog/introducing-rift-tectons-compute-...

- Improving real-time processing and retrieval systems for use cases that require subsecond decisioning like fraud detection: https://www.tecton.ai/blog/fraud-doesnt-wait-accelerating-ai...

* Find our open roles at: https://www.tecton.ai/careers/openings/ *

CVector | Full Stack Software Engineer; UI/UX Designer | USA | REMOTE | Full-time | $75k/yr + 0.3% – 1%

CVector builds software to make energy systems smarter, more reliable, and autonomous. We integrate real-time data visualization and analytics to help power generation stations, chemical plants, and other critical infrastructure make informed decisions in rapidly changing environments. You'll help create intuitive, robust web apps and backend systems, shaping tools that directly impact industrial operations and energy reliability.

Remote-first team with occasional domestic travel to connect with users directly. Recent graduates may need to relocate.

Full Stack Software Engineer: We're looking for a passionate Full Stack Software Engineer comfortable working across our stack (Python, Typescript, React, Supabase, MQTT, Kafka, TimescaleDB, PostgreSQL, AWS).

UI/UX Designer: Explore the solution space for how users will interact with our app, and help us communicate more clearly with our customers and investors.

Reach out to me at jnapoli+hn@cvector.energy

Archera | Senior Data Engineer | REMOTE (US/Canada) or Hybrid (Seattle) | Full-time

Archera empowers organizations of all sizes to optimize their cloud costs through unique, short-term, insured GRI (Guaranteed Reserved Instance) and GSP (Guaranteed Savings Plan) commitments.

We’re looking for a Senior Data Engineer to build and scale the data backbone of Archera’s cloud cost optimization products. This role focuses on architecting large-scale data pipelines that process cloud billing and usage data across AWS, Azure, and GCP. You’ll work across OLTP and OLAP systems to ensure our data infrastructure is performant, reliable, and purpose-built for FinOps. Your work will enable accurate cost modeling, insights, and automation that directly power Archera’s cloud rate insurance platform.

Stack: Python (SQLAlchemy, Flask), TypeScript (React), PostgreSQL, Snowflake, Argo Workflows, k8s, AWS/GCP/Azure

Benefits: RRSP/401k match, healthcare, stock, wework/home office expenses.

Apply: https://job-boards.greenhouse.io/archera/jobs/4788177008 and email me at simon+hn <at> archera <dot> ai

Datadog | Software Engineers | ONSITE (Boston, Lisbon, Madrid, NYC, Paris, Tel Aviv) | Full-time

Datadog is a monitoring, tracing, logs system, and more, for your infrastructure and services. We build our own tsdb, event store [1][2], distributed tracing tools, cutting edge visualizations, and more. We love shipping great experiences for customers just like us and are growing fast! We write a lot of Go, Java, Python, Typescript (with React), and a bit of other languages. We run on k8s, and are multi-region and multi-cloud.

We're looking for people who can build systems at scale as we process trillions of events per day. Let us know if that's you!

https://dtdg.co/hnwhoshiring

[1] https://www.datadoghq.com/blog/engineering/introducing-husky

[2] https://www.datadoghq.com/blog/engineering/husky-deep-dive

Channable | Utrecht, Netherlands | HYBRID

Channable is a fast-growing B2B SaaS platform that offers a fully integrated way to market your products online. We empower marketers and online businesses to manage, scale, and optimize their marketing.

Do you want to read more about our engineering culture? Then have a look at our popular tech blog: https://tech.channable.com

Additionally, you can also take a look at some of our open-source work at https://github.com/channable to get a feeling of how we work together and what our code looks like.

Our stack includes: Python, Haskell, Rust, PostgreSQL, Redis, Nix, Terraform, Nomad, Ansible

We're looking for a Python Software Engineer to join us: https://jobs.channable.com/o/python-software-engineer-insigh...