Founding AI Engineer

• Strong backend engineering skills and experience shipping and operating production systems.
• Hands-on experience building AI applications: context management, retrieval, tool use, orchestration, and evaluation.
• Experience developing ML models on real data and taking them beyond experimentation into a usable product.
• Solid foundations in probability, statistics, and machine learning. You can recognize confounding, prevent data leakage, quantify uncertainty, and choose an appropriate baseline.
• Fluency in Python and SQL, and confidence working with cloud infrastructure.
• An AI-native approach to development, with the judgment to understand and verify what your tools produce.
• Curiosity about the people using your work, and the ability to turn an ambiguous business problem into a focused implementation.

We're not hiring for a title or a number of years. We're hiring for what you can build. Whether you've done this for 2 years or 10, if you've shipped real AI systems into production and can turn an ambiguous business problem into a working product, we want to talk.

• Backend: Python, FastAPI, Pydantic.
• Agent systems: a custom harness built with PydanticAI and frontier model APIs.
• Data: PostgreSQL and Supabase.
• Infrastructure: Google Cloud Run, Cloud Tasks, Docker, and GitHub Actions.
• AI evaluation and observability: Braintrust.
• Voice: LiveKit, Deepgram, and ElevenLabs.

You’ll help evolve this stack and select the modeling tools that fit the problems we tackle. We value strong foundations and evidence of what you’ve built; experience with every tool listed isn’t required.

SF-based, relocation supported (visa sponsorship available)

Coach is building the AI coach for the physical world. Starting with in-person sales.

For centuries, field organizations have relied on layers of management to relay information, coach teams, and understand performance. We believe AI will radically change how these companies operate and how people learn and improve at work.

Today, understanding why a sales rep succeeds or struggles still requires being alongside them in the field. That doesn’t scale. And yet roughly 80% of global sales still happen offline.

Coach helps employees learn faster, improve, and close more. Managers get a clear view of what’s happening, where people need help, and why, so they can focus on solving problems.

Our custom AI harness turns field conversations and business context into sales intelligence, grounding coaching in what actually happens on the ground. Over time, that accumulated knowledge becomes a company brain: a shared understanding of how the business works.

We’re bringing AI to people who have never had a reason to use it, by making it part of the human interactions at the heart of their work. In-person sales is only the beginning