Fullstack Engineer

About the Company

Mercor's mission is to organize human intelligence to power the AI economy. We partner with leading AI labs and enterprises to provide the human intelligence essential to AI development. Mercor is a profitable Series C company valued at $10 billion.

Responsibilities

• Own the Studio platform across the full stack, from React interfaces to backend APIs and pipelines
• Lead engineering best practices for frontend architecture, component design, and performance
• Build foundational layers to support new data types, task formats, and customer configurations
• Ship high-leverage product features to improve throughput and quality across data pipelines
• Translate ambiguous requirements into technical solutions through collaboration with researchers and product teams

Requirements

• 5+ years of fullstack engineering experience building production software
• Deep proficiency in JavaScript/TypeScript (React + Next.js)
• Solid backend experience in Python and/or Node.js

Preferred Qualifications

• Experience building tooling for data labeling or human-in-the-loop AI workflows
• Background in design systems or internal platform engineering
• Exposure to AI tools or LLM-powered products