Principal UI Engineer: AI DevTools & Real-Time Platform

Yahoo seeks a seasoned Principal Engineer to own the platform architecture behind our real-time collaboration services. You will optimize CRDT-based multi-user editing, ensure durable state, and design AI-ready tooling that safely inspects and changes design systems and codebases.

You will lead performance tuning, CI/CD improvements, and secure access controls while mentoring engineers and guiding cross-functional stakeholders toward scalable, resilient solutions.