Mercor
Software Engineer, Agents
San Francisco. Posted 14 months ago
The role
You will build agentic products that scale, including LLM agents, harnesses, and verifiers. You will work on backend services, orchestration pipelines, RL environments, and full-stack interfaces.
What you will do
- Own agentic features end-to-end from scoping to implementation and launch
- Design and ship LLM agents, harnesses, and verifiers
- Build Python/FastAPI services and Temporal/Modal pipelines
- Build state of the art RL environments
- Build tooling to turn agent trajectories into insight
- Build and refine full-stack surfaces and data infrastructure
- Define agent quality and drive continuous improvement
- Partner cross-functionally to shape agent autonomy
Required qualifications
- Python
- FastAPI
- Django
- Pydantic
- Next.js
- React
- TypeScript
- Tailwind
- PostgreSQL
- MySQL
- Snowflake
- DuckDB
Benefits
- Bi-annual performance bonus structure
- Generous equity grant vested over 4 years
- Up to $15k Relocation bonus
- $10K housing bonus (if you live within 0.5 miles of our office)
- $1.5K monthly stipend for meals
- Free Equinox membership
- $200 monthly laundry reimbursement
- $200 monthly personal wellness reimbursement
- Health, Dental, Vision insurance
About the company
Mercor builds infrastructure that enables frontier AI labs and enterprises to train, evaluate, and improve AI on real-world professional work. The company is profitable and recently raised a $750 million Series D at a $20 billion valuation.