Founding Engineer – AI for Procurement

Competitive programmer, quant, or a founder who gave it a real shot? Build an AI workforce for an industry that is begging for a real product. A seed-stage startup in San Francisco builds AI agents for direct procurement at large manufacturers, and is already closing substantial enterprise contracts. It's an unglamorous industry with a huge need, and a small, driven team. You'd own everything from the first customer conversation to deployment, own an enterprise account, and grow into a team lead. They're hiring 3 founding engineers . What you'll own Backend-leaning full-stack work on LLM agents, tool use and evals Deployments at enterprise customers, end to end An enterprise account of your own, and later a team Must-haves Backend-leaning full stack in Python, TypeScript, Java or C++, with LLM agents, tool use and evals (front-end-only won't fit) A clear technical spike: ICPC, USACO, IOI or olympiad results, quant work, or a startup you founded 1+ year of experience (roughly 1–4); exceptional new grads are welcome Based in the US and no visa sponsorship needed now (US citizen, green card or, for example, STEM OPT) In person in San Francisco, 9-9-5 Bonus points Something you built unprompted that has real users Agent evaluation and guardrail work What's in it for you $160k–$180k base + 0.5–1% equity Founding-level ownership and a path to team lead Good to know Full-time, in person in San Francisco, 9-9-5 Process: intro call with a co-founder short screen-recorded take-home (AI tools allowed) technical conversation paid work trial of two to five days offer When you apply, please include Your CV (PDF), your LinkedIn URL , and GitHub if you have one Your contest or quant results, or the startup you founded and what happened Why you'd join a three-person company in an unsexy space like procurement (an honest answer is the best answer) Your current location, and confirmation that in person in San Francisco works for you Your work authorization status Your base salary expectation, your notice period, and any other interview processes you're in 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

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