Senior Frontend Software Engineer | AI Developer Tooling

This role focuses on building high-performance, real-time web applications that surface agent behavior, streaming model outputs, system evaluations, and human review workflows. What You’ll Do Design and build complex frontend applications using TypeScript and React Own frontend architecture decisions, including routing, state management, caching, and rendering strategies Implement real-time UI patterns for AI systems, including: Streaming model outputs /Agent actions and tool execution traces /Live system feedback and updates Build and maintain reusable component systems and design tokens Enforce accessibility, responsiveness, and cross-browser reliability Develop rich interfaces for data review, annotation, and human-in-the-loop audit workflows Build advanced editors, tables, and visualizat...