Mercor is organizing human intelligence to power the AI economy. We are powering frontier research, AI benchmarks, and AI agent training at scale for the top AI labs and enterprises. Backed by General Catalyst and Menlo.
About the role
As a Member of Technical Staff on Talent Experience, you'll build the backend systems and agent infrastructure behind every journey in Mercor's talent network.
What they're looking for
- 5+ years of professional backend engineering experience
- Strong fundamentals in distributed systems, service architecture, data modeling, and API design at scale
- Hands-on experience building with LLMs in production—agents, tool use, retrieval, or evaluation systems—or a clear track record of learning new systems fast and shipping them
- Comfort with ambiguity: agent systems fail in ways traditional services don't, and the right design is rarely obvious upfront
- A track record of owning systems end to end, from design through production operation
- Fluent in using modern AI development tools (e.g. Cursor, Claude Code, GitHub Copilot, or similar) to improve engineering productivity
More about this role
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.
SF only.
As a Member of Technical Staff on Talent Experience, you'll build the backend systems and agent infrastructure behind every journey in Mercor's talent network.
A growing share of Mercor's core work...
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