170K–170K USD / year
Lead Engineer, AI Quality
AIRemote — Spain
Published on 2026-09-30
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About this role
The Lead Engineer role focuses on building evaluation frameworks and diagnostic infrastructure for Circle's AI-powered features. This hands-on position involves leading and managing the AI Quality engineering team while enhancing the quality and efficiency of AI systems.
About the company
Circle is a technology company that provides a platform for building community-driven spaces, focusing on enabling creators and teams to engage and collaborate effectively. They offer tools for marketplace solutions, enhancing user experience through design and advanced technology.
The team
AI Quality engineering team
Stack
Ruby on RailsPython
What you'll do
- Build and own evaluation infrastructure
- Diagnose quality breakdowns in AI systems
- Grow datasets for AI evaluation
- Run structured experiments to evaluate models
- Lead and grow the AI Quality engineering team
- Partner closely with AI Core engineering
What we're looking for
- 7+ years of experience building production software
- Proficiency in Ruby on Rails and Python
- Experience with ML/AI evaluation infrastructure
- Knowledge of dataset design and annotation processes
- Ability to thrive in fast-paced environments
Benefits
- U.S.-benchmarked compensation
- Equity with ongoing refresh grants
- 35 days of paid time off annually