About the role
Senior Software Engineer, Discovery at Mercor in San Francisco. On-site, full-time, paying $250k–$500k. Posted November 3, 2026.
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
Prefer to apply yourself? Apply on Mercor’s site
Quick answers
How much does this Mercor job pay?
The posted pay is $250k–$500k.
Where is this job based?
San Francisco. The role is on-site.
How much experience do you need?
The posting asks for 5+ years.
How do you apply?
Apply on Mercor’s site using the link on this page. With a free Jobmagic account you can see how well you fit first.
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