# Senior Software Engineer, Discovery at Mercor

Senior Software Engineer, Discovery at Mercor in San Francisco. On-site, full-time, paying $250k–$500k. Posted November 3, 2026.

- Company: Mercor
- Location: San Francisco
- Workplace: On-site
- Job type: Full-time
- Pay: $250k–$500k
- Experience: 5+ years
- Posted: 2026-11-03
- Apply: https://jobs.ashbyhq.com/mercor/861df396-2508-4ede-97b8-51a85bbc98e2/application
- Source: https://jobmagic.ai/jobs/senior-software-engineer-discovery-mercor-7hjkfr

## Description

**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