Circle, a remote-only company building an AI-powered platform, seeks a Lead Engineer for the AI Quality engineering team. You will own evaluation infrastructure, build observability tooling, and guide a growing team while staying hands-on in code. You'll diagnose quality across the agent pipeline, design datasets, run experiments across prompts and models, and collaborate with AI Core engineering to improve product quality at scale in a fast-paced, general environment. #J-18808-Ljbffr
📌 Remote lead engineer – ai quality platform (Madrid)
🏢 Circle
📍 Madrid