Front-End Developer (React) for Web App

We’re building a multi‑module web platform for a premium group‑travel service. The UX and product architecture are fully designed, with the first module already in high‑fidelity and ready for development. Additional modules are in mid‑fidelity and will be delivered on a rolling basis as the build progresses. Our backend and data layer are already built in Zoho. Your role is to build the front‑end application in React and integrate it with that backend through APIs, webhooks, and payment handoff. This is a front‑end role with real integration depth — not a static UI build.