React JS Developer

1. Advanced Core React & Hooks

Advanced Hooks Mastery: Deep understanding of useMemo, useCallback, and useRef to prevent unnecessary re-renders and manage non-serializable data.

Custom Hook Architecture: Ability to extract complex logic into highly reusable, testable custom hooks that abstract side effects and state transitions.

React 19 Features: Familiarity with the latest updates, including the React Compiler, Actions, and new use hooks.

Concurrent Rendering: Leveraging Transitions and Suspense to manage UI responsiveness during heavy data fetching or rendering.

2. Performance Optimization & Profiling

Advanced Profiling: Using React Developer Tools to record performance traces, identify "wasted" renders, and analyze commit phases.

Code Splitting & Lazy Loading:Implementing dynamic imports with React.lazy to optimize bundle sizes and initial load times.

Windowing & Virtualization: Handling massive datasets efficiently using libraries like react-window or TanStack Virtual to render only visible elements.

3. State Management & Data Fetching

Complex State Architecture: Proficiency in choosing between Zustand for lightweight state or Redux Toolkit for large-scale enterprise applications.

Server State Management: Advanced data fetching patterns using TanStack Query (React Query) or RTK Query to handle caching, synchronization, and optimistic updates.

4. Advanced Design Patterns & Systems

Component Patterns: Mastery of advanced patterns such as Higher-Order Components (HOCs), Render Props, and Compound Components.

Design Systems: Building enterprise-grade, themeable component libraries using Tailwind CSS, Storybook, and design tokens.

Micro-Frontends: Architecting large applications into independent, deployable modules using Module Federation.

5. Testing & Infrastructure

Comprehensive Testing: Moving beyond unit tests to integration and E2E testing with React Testing Library, Jest, and Cypress.

Next.js & SSR/SSG: Expert-level knowledge of Next.js App Router, Server Components, and Server Actions for optimized performance.

6. Understanding of Git concepts and has experience in working with large team and manage git branches and merging