Do you want to build the product people use to hand real work to AI agents, as one of the first engineers at a brand-new lab?
A newly founded AI lab in San Francisco is building agents that don't stop after a single task. They keep working toward a goal for weeks, months and eventually indefinitely. The founders come from frontier AI labs, robotics and autonomous-driving AI, big-tech research and a top quant firm. Their view: the longer an agent runs, the less raw capability is the problem and the more it comes down to understanding what the person actually wants. So their agents turn short instructions and messy real-world signals into a lasting picture of the goal, then plan, act, check the results, recover from mistakes and keep getting better. The first use case: products that improve themselves.
They're hiring 4 full stack AI engineers at founding level.
What will you do?
- Own complete product areas, from first idea to production
- Build the interface where users hand over complex outcomes to agents and stay in control
- Work across the whole stack: front end, agent workflows, model orchestration and infrastructure
- Turn new model capabilities into features that work for real users, not just in a demo
- Talk to users, learn how they work and ship improvements fast
- Help shape the product, the architecture and the culture as one of the first engineers
What do you bring?
- Around 3–6 years as a software engineer; exceptional outliers and senior leads are welcome too
- Full stack range combined with strong product judgment and taste
- Products you built and shipped to real users, ideally from zero
- A feel for turning what LLMs and agents can do into something simple and useful
- Clear proof of ownership: you founded a company, owned a major product, or shipped important work at a frontier tech company
- A founder mindset: high agency, fast, at home where nothing is defined yet
Nice to have
- Experience at a leading AI coding or AI agent company
- Founder or early-team experience; an exit is a strong signal
- A spike: top of your field in olympiads (IOI/IMO), competitive programming, chess, sports or quant trading
What do we offer?
- $250k–$500k base salary + 1–5% equity
- Founding-level ownership next to an exceptionally strong founding team
- Hard, open problems in long-running autonomous agents
- Visa sponsorship; from outside the US the O-1 is the realistic route
Good to know
- Full-time, on-site in San Francisco, 9-9-6
- Process: informal chat with a founder technical deep-dive on your applied AI work paid 2–3 day work trial on-site (expenses covered) offer
Does this sound like you? Apply now. If you're a match, we'll be in touch within 3 working days.
RnB Consultancy | Netherlands | 3604 AB Maarssen | KvK 71489703