Mercor · Engineering

Senior Software Engineer, Discovery

Mercor is hiring for this role, on-site in San Francisco. Posted November 3, 2026. You apply on Mercor's own site.

  • $250K - $500KPay range
  • On-siteWork arrangement
  • Full-timeJob type
  • SeniorLevel (from the title)

How the pay compares

The middle of this posting's range is $375K, 31% above the $286K median for Software Engineer at AI Companies roles across 686 open AI postings that show pay.

Software Engineer at AI Companies salary data

About the job

From Mercor's job posting. Check the original for the latest details before applying.

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

Apply on Mercor's site

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