Mercor
Software Engineer – Open Source Maintainers and Core Contributors
- Pay
- $150/hr
- Type
- Full-time
- Location
- Remote
- Who can apply
- USA only
- Posted
- Nov 2, 2026
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About this role
Join a leading AI lab's cutting-edge GenAI team to be at the core of the AI revolution, where your expertise fuels the development of the most advanced Large Language Models. 1\. Overview Join a leading AI lab's cutting-edge GenAI team and help build foundational AI models from the ground up. We're seeking talented open-source maintainers and core contributors with deep, hands-on ownership of a mature, widely used open-source codebase to bring real-world engineering and code review judgment and elevate the quality of our AI training data. This is a full-time commitment of 40 hours per week. This is a W-2 employment position with Cincinnatus LLC, with the opportunity to be placed at a leading AI Lab as part of their extended workforce. 2\. Key Responsibilities Guide research and engineering teams to close knowledge gaps and improve AI model performance in software engineering, code…
