Remote Lead Engineer, AI Quality Platform

Company: CIRCLE
Apply for the Remote Lead Engineer, AI Quality Platform
Location: London
Job Description:

Circle is building the world’s leading AI-powered platform for digital businesses. We are a fully remote company with ~270 teammates, seeking a Lead Engineer for the AI Quality engineering team.

You’ll design evaluation frameworks, observability tooling, and datasets, while leading a growing team and collaborating with AI Core engineering. You will own the evaluation infrastructure, diagnose quality issues, and drive cost and latency improvements through experiments and model swaps.

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Posted: October 3rd, 2026