React Senior Developer: Architecture, Testing & Modern Practices

• Chapter 1: BFF (Backend-for-Frontend) Architecture - A deep dive into BFF patterns, when to use them, how to implement them, and real-world examples.
• Chapter 2: React Testing Library — Coverage, Use Cases & Stories - Practical guide to RTL, meaningful test coverage targets, and real-world testing stories.
• Chapter 3: Vitest — The Modern Unit Testing Framework - Complete guide to Vitest: setup, configuration, API, mocking, and advanced patterns.
• Chapter 4: Modern React.js Practices - Up-to-date React patterns: hooks, Suspense, Server Components, performance, and code organization.
• Chapter 5: Deep Understanding of React Internals & Senior Interview Questions - React’s reconciliation, fiber, rendering pipeline, and 50+ senior interview Q&A.
• Chapter 6: State Management Libraries in React - Zustand, Redux Toolkit, Jotai, Recoil, XState, React Query, SWR — when and how to use each.
• Chapter 7: Sample React.js App with Best Practices - A small but realistic app that combines React Query, Zustand, React Hook Form, and modern architecture in one concrete example.