React.js Engineer with 3 years of experience is responsible for building dynamic responsive and scalable frontend applications. key responsibilities include the following:
1. FrontEnd Development
- Develop userfacing features and interfaces using React.js.
- Write clean modular and maintainable code following best practices.
- Optimize components for maximum performance across a variety of devices and browsers.
2. Component Design and Implementation
- Build reusable components and libraries for future use.
- Ensure consistency in UI/UX by implementing design guidelines and patterns.
- Collaborate with designers to translate wireframes and prototypes into responsive web pages.
3. State Management
- Manage application state using libraries like Redux Context API or MobX.
- Implement complex stateful logic and asynchronous data flow (e.g. API calls user interactions).
4. Integration with APIs
- Connect frontend components with RESTful APIs or GraphQL endpoints.
- Handle data fetching caching and error handling effectively.
- Work with backend teams to ensure seamless integration.
5. Code Optimization and Performance
- Optimize web applications for speed and scalability.
- Implement lazy loading code splitting and other techniques to improve performance.
- Conduct performance testing and debug bottlenecks.
6. Testing and Debugging
- Write unit integration and endtoend tests using tools like Jest React Testing Library or Cypress.
- Debug and resolve application issues and bugs efficiently.
- Ensure code quality through peer reviews and adherence to coding standards.
7. Collaboration
- Work closely with crossfunctional teams including UI/UX designers backend developers and product managers.
- Participate in agile development processes like sprint planning daily standups and retrospectives.
8. Version Control
- Use Git for source code management including branching merging and resolving conflicts.
- Collaborate on repositories hosted on platforms like GitHub GitLab or Bitbucket.
Key Tools and Skills
- Languages: JavaScript (ES6) HTML CSS TypeScript (optional but preferred).
- Frameworks/Libraries: React.js Redux React Router.
- Build Tools: Webpack Babel Vite.
- Testing Tools: Jest React Testing Library Cypress.
- Version Control: Git.