Distinguished Agent Engineer

Full-time | San Francisco

This is one of our most senior IC engineering role. You'll set the technical direction for how agents get built on Fastino models, write a lot of the core code yourself, and raise the bar for everyone around you. You've built agentic systems that real users depend on, and you have strong opinions about what works.

• Design and own the architecture for agentic systems built on Fastino's small, fast models: planning, tool use, memory, and multi-agent orchestration.
• Figure out where specialized models beat frontier LLMs inside agent loops, and prove it with benchmarks and real customer workloads.