AI Engineer
Nen · San Francisco Bay Area
📍 San Francisco💰 $150K – $200K • Offers Equityvia ashbyPosted 2026-02-25
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Be one of the founding engineers at Nen, shaping the AI layer that powers automation across enterprise desktop environments at scale.
The role
- Build and extend a multi-model agent loop across leading AI providers
- Benchmark models across cost, latency, and reliability — and own the framework for doing so continuously
- Improve agent reliability through better perception, grounding, and structured context
- Instrument traces and build the data foundation for future fine-tuning
- Shape the Python workflow SDK so improvements are transparent to users
Requirements
- Hands-on experience building with LLMs in production
- Strong Python; comfortable working across SDK, API, and model integration layers
- Experience evaluating and benchmarking models with structured evals, not just vibes
- Familiarity with agent architectures, tool use, and multi-step reasoning loops
- Curiosity about the computer-use model landscape and how it's evolving fast
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