Founding Engineer

ABOUT THE ROLE This is a founding engineering role at a YC-backed enterprise AI startup building an agentic operating system that lets businesses deploy and orchestrate AI agents at scale. You will operate at a CTO-level of ownership, taking vague problems from user insight all the way to production with minimal hand-holding. The work you do here will directly shape the product and the company. WHAT YOU'LL DO - Own large parts of the product end-to-end, from understanding user pain points to shipping to production. - Build and improve agentic systems, making them more accurate, reliable, and powerful. - Work at the frontier of AI engineering across context engineering, tool use, and agent architectures. - Talk to users regularly to scope features that actually solve real problems. - Ship full-stack when needed, including React and Vite frontend work. - Champion AI-first development practices such as coding agents and automation to scale your own output. - Review code quickly while maintaining high standards across the codebase. WHAT WE'RE LOOKING FOR - 3 or more years of hands-on product engineering experience, with a background in building and shipping, not consulting. - Strong Go backend engineering skills with an emphasis on clean, maintainable code. - Full-stack capability, comfortable working in a TypeScript and Vite frontend when needed. - Proven experience building something from scratch and seeing it through to production. - Hands-on experience with AI-first development tools such as Claude Code, Cursor, or coding agents. - Experience building AI products, ideally agentic systems or AI coding tools. - Thrives in ambiguity and does not need detailed specs to move forward. - Former founder experience or an AI research background is a plus. COMPENSATION & BENEFITS Base salary between $120,000 and $250,000 USD annually, plus generous equity reflecting the outsized impact of this founding role. Visa sponsorship is not available. LOCATION On-site in San Francisco, California, United States.