Mercor.io Corporation

Senior Software Engineer, Discovery

Mercor.io Corporation · San Francisco, CA
San Francisco, CA $250K–$500K Posted 2026-11-03
Salary
$250K–$500K
Type
Full-time
Experience
5+ yr

ABOUT MERCOR

Mercor's mission is to organize human intelligence to power the AI economy. We're a leading AI data company, building the layer between human expertise and frontier models. Millions of domain experts on the platform are paid over $4 million per day to train frontier AI models. Mercor's APEX benchmark family measures AI's real-world impact on professional work. Mercor Enterprise brings this same infrastructure to Fortune 500 companies: helping companies capture how their best people actually work, translating that expertise directly back into agents.

Mercor is creating a new category of work where expertise powers AI advancement. Achieving this requires an ambitious, fast-paced and deeply committed team. You’ll work alongside researchers, operators, and AI companies at the forefront of shaping the systems that are redefining society. Mercor is a profitable Series C company valued at $10 billion. We work in-person five days a week in our San Francisco, NYC, or London offices.

THE ROLE

Project leads at Mercor run and scale distinct data production businesses, each hiring and upskilling thousands of experts, while managing throughput and quality. We're building a self-optimizing automation platform that lets one person run a business of tens-hundreds of millions in revenue.

You'll own major parts of it:

  • Agents that source, vet and staff with minimal human input
  • Pay and incentives models that hire and retain the best experts
  • Experiments and workflows that keep huge projects running smoothly
  • Agents that are accountable for monitoring and driving real revenue goals

WHO WE'RE LOOKING FOR

We want engineers with 5+ years of experience who thrive under ambiguity, seek out outsized scope and fight for high quality.

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
$110K — 10th pctl $270K — 90th pctl
This role’s midpoint $375K vs. market median $180K for Engineering roles
+110%
above median
Based on 25,000+ Engineering roles with disclosed salary ranges tracked on NewJob.
Mercor

Mercor

AI · Series C · San Francisco, USA

Stage & Valuation
Series C · $10B
Key Investors
Felicis, Benchmark, General Catalyst
Open roles on NewJob
Most hiring in
Engineering (23) · BizOps (9) · Sales (3)
Mercor develops an artificial intelligence-powered hiring platform designed to streamline the recruitment process. The company connects a global network of contractors with organizations to provide expert-guided AI training and frontier research.
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