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Mercor

Software Engineer, Agents

Mercor
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8 months ago
San Francisco, CA, USA or New York, NY, USAMid Level / Senior

Base Salary

$130k - $500k/yr

Responsibilities

  • Own agentic features end-to-end from scoping to iteration.
  • Design and ship LLM agents, harnesses, and verifiers.
  • Build Python/FastAPI services and orchestration pipelines.
  • Create state-of-the-art RL environments for frontier agents.
  • Develop tooling for insight generation from agent trajectories.
  • Refine full-stack surfaces and data infrastructure.
  • Define agent quality and drive continuous improvement.
  • Collaborate cross-functionally to shape agent autonomy.

Requirements

  • Strong experience in backend development with Python and FastAPI.
  • Proficiency in frontend technologies like Next.js and React.
  • Familiarity with data management systems such as PostgreSQL and MySQL.
  • Experience with orchestration tools like Kubernetes and Temporal.
  • Knowledge of agent frameworks and observability tools.
  • Ability to work collaboratively in a fast-paced environment.

Benefits

  • Bi-annual performance bonus structure.
  • Generous equity grant vested over 4 years.
  • Up to $15k relocation bonus.
  • $10K housing bonus for living within 0.5 miles of the office.
  • $1.5K monthly stipend for meals.
  • Free Equinox membership.
  • $200 monthly laundry reimbursement.
  • $200 monthly personal wellness reimbursement.
  • Health, dental, and vision insurance.