About this role
Founding Software Engineer
Location: San Francisco, CA
Role Overview
Our client has built a self-improving agent that runs product demos today and full sales conversations soon. The CTO and CEO are the team today. You'd be the second engineer: real-time voice, generative UI that redraws itself based on who's watching, custom LLM orchestration, eval loops that actually move the needle. The roadmap isn't written. You'll help write it.
What You’ll Build The agent. LLM orchestration, conversation flow, tool use, voice. Generative UI that adapts in real time to what the prospect cares about. The eval loop. Demos get smarter without manual intervention. The platform customers use to configure, review, and tune their agent. And yes: CSS, migration scripts, customer debugging. Early-stage means all of it.
Who You Are You've shipped LLM systems to production and can talk about what broke and what you did about it. You move fast without creating hidden problems. You've also killed features that weren't working. You take ownership without being asked.
The Perks
Base: 180-230K Equity: Founding-caliber
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