Founding Engineer, AI Agents (Early-Stage Startup)

A founder-led AI startup in the earliest stage, building a platform where autonomous agents take on real work inside a company’s own systems, is hiring founding engineers. Each hire handles sizeable challenges with minimal supervision and helps decide both architecture and product with the founders.

Your focus

Take charge of the platform’s full-stack work, including the runtime that keeps agents connected to a customer’s email, chat, CRM and other internal tools

Be responsible for agent memory (implicit, explicit and shared skills) and for extended execution, letting agents stay on course across weeks of effort

Design evaluations that reveal when an agent outperforms the human who previously held the task, and let the results shape the roadmap

Create the front end and the layer where people and agents interact, which remains an unsolved design question

Improve proactive suggestions and single-click agent launches, so users discover what agents can accomplish for them

Study leading agent products and apply the lessons to your own design choices

Who thrives here

One to five years of engineering at a strong company, having built agents directly or core pieces around them such as model routing, sandboxes or evals

Comfort across the stack, from the runtime and memory systems to user interfaces

A record of excellence: a strong CS program, a respected employer, peer-reviewed papers or products delivered at scale

Standout achievements in areas like competitive math, programming, chess or entrepreneurship are a bonus

Very AI-forward, high-intensity and open to rethinking how you work

On-site in the San Francisco Bay Area, five days a week. Visa transfers considered.