Staff Software Engineer, Frontend at F2

The Role: We are seeking a hands‑on Frontend Tech Lead who thrives in building from 0‑1 and driving execution, directly contributing production‑level code while shaping our core technical foundation. You will collaborate closely with the founding team to architect, develop, and scale F2’s AI‑driven enterprise UI platform. What you’ll do: Hands‑on UI system building. Architect and implement foundational frontend infrastructure and features, actively coding and delivering critical React/TypeScript components from scratch. Hands‑on UI system building. Architect and implement foundational frontend infrastructure and features, actively coding and delivering critical React/TypeScript components from scratch. Own the frontend architecture. Define and execute the technical vision and multi‑year roadmap for our React‑based UI platform, ensuring rapid iteration and effective scaling of user‑facing experiences. Own the frontend architecture. Define and execute the technical vision and multi‑year roadmap for our React‑based UI platform, ensuring rapid iteration and effective scaling of user‑facing experiences. Design for performance, security, and accessibility. Build high‑performance, respons