Founding AI Product Engineer

Building a unified OpenAI-format API layer for every major LLM provider.

Every new language model brings a fractured integration pattern, forcing developers to write bespoke glue code just to swap between Anthropic, Llama, and Huggingface. As a founding product engineer, you will collapse that fragmentation by extending the core SDK and API surface that translates any provider into a single, reliable standard. You will architect backend systems in Python and FastAPI, shape the Type Script interface developers actually touch, and ship the infrastructure that enterprise teams depend on to route LLM traffic across AWS and Azure.

• 5 to 7 years of engineering experience building developer tools, SDKs, or complex API integrations.
• Deep fluency in Python and FastAPI for backend services, plus competency in Type Script.
• Proven experience wiring REST APIs to cloud infrastructure on AWS or Azure.
• Strong bias toward shipping functional code over theorizing about architecture in an early-stage environment.
• Comfortable working on‑site in San Francisco alongside a tight, focused team.
• Must be based in the United States.

Python, FastAPI, Type Script, OpenAI, AWS, Azure, REST API, Git