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MercorMercorSan Francisco, CA

Product Engineer, Talent Experience

Build backend services, evaluation pipelines, and full-stack features for Mercor's AI-powered talent assessment platform that vets and matches experts for frontier AI labs. Requires 3+ years production software engineering experience with strong backend fundamentals and product intuition; LLM experience is a plus.

130k – 500k/yr
On-site3+ YOEFullstack Engineering

About the role

Responsibilities

  • Design, build, and ship backend services and APIs that power Mercor's assessment platform at scale.
  • Own features end-to-end—from product discussions and technical design to implementation, testing, and release.
  • Build evaluation pipelines and data models that combine human judgment with AI-powered scoring.
  • Contribute across the stack, including the candidate- and expert-facing product surfaces of assessment flows.
  • Partner closely with Product, AI, and Data teams to translate assessment research into production systems.
  • Leverage modern AI coding tools to accelerate development while maintaining a high engineering bar.
  • Improve the performance, reliability, and observability of assessment infrastructure.
  • Solve real customer problems and continuously improve candidate and expert experience.

Requirements

  • 3+ years of professional software engineering experience building production systems.
  • Strong backend fundamentals: API design, data modeling, distributed systems, and relational databases.
  • Comfortable working across the stack, including modern frontend frameworks (e.g. React/TypeScript) when the product needs it.
  • Strong software engineering fundamentals, including testing, debugging, and performance optimization.
  • Excellent product intuition—you enjoy building products that people actually use.
  • Comfortable working in fast-moving environments with evolving priorities.
  • High ownership, curiosity, and a bias toward shipping.

Nice-to-Haves

  • Experience building or integrating LLM-powered features in production.
  • Comfortable building products using modern AI development tools (e.g. Cursor, Claude Code, GitHub Copilot, Codex, or similar) to accelerate software development.

Compensation and Benefits

  • Bi-annual performance bonus structure.
  • Generous equity grant vested over 4 years.
  • Up to $15k Relocation bonus.
  • $10K proximity 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.

Skills

Backend DevelopmentAPI DesignData ModelingDistributed SystemsRelational DatabasesReactTypeScriptllm integrationai coding toolstestingDebuggingPerformance Optimization

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