UI Developer - React and JavaScript

Job Title : ReactJS DeveloperExperience Required : 2 7 YearsLocation : Bangalore, Hyderabad, Chennai, Pune, Mumbai, Delhi, Gurugram, NoidaEmployment Type : Full-TimeJoining : Immediate About the Role :We are looking for a passionate and skilled ReactJS Developer to join our front-end engineering team. The ideal candidate should have hands-on experience building scalable, high-performance, and responsive web applications. You will work closely with UI/UX designers, backend engineers, and product owners to develop intuitive user interfaces and deliver seamless user experiences. This role requires strong expertise in modern JavaScript, React.js ecosystem, component-driven architecture, state management, performance optimization, and code quality.Key Responsibilities :Front-End Development :- Develop new user-facing features using ReactJS and modern JavaScript (ES6+).- Build reusable components and libraries for future use.- Implement pixel-perfect and responsive UI based on Figma/Sketch/Adobe XD designs.- Optimize components for maximum performance across all devices and browsers.- Ensure application scalability, maintainability, and high performance.Architecture & Design :- Work with the team to design clean and scalable front-end architecture.- Implement component-driven design and modular structure.- Collaborate with product and design teams to transform requirements into technical solutions.Integration & API Work :- Integrate backend REST APIs/GraphQL endpoints with front-end components.- Handle authentication flows, error handling, and client-side data management.- Work closely with backend developers to ensure smooth integration.State Management :- Manage application state using Redux, Redux Toolkit, Context API, MobX, or Recoil.- Implement data caching, global state, and local storage-based persistence.Testing & Quality :- Write clean, maintainable, and well-documented code.- Implement unit testing using Jest, React Testing Library, Enzyme, or similar frameworks.- Participate in code reviews, pair programming, and continuous improvements.Performance & Best Practices :- Optimize front-end performance (lazy loading, code splitting, memoization, etc.).- Ensure accessibility (WCAG standards) and cross-browser compatibility.- Follow best practices for security, including XSS protection and safe UI rendering.Agile & Collaboration :- Participate in sprint planning, standups, retrospectives, and product discussions.- Work within Agile/Scrum environments.- Collaborate with cross-functional teams for seamless delivery.Required Skills :- Strong hands-on experience with ReactJS, JavaScript (ES6+), HTML5, CSS3.- Experience with state management libraries like Redux, Redux Toolkit, MobX, or Context API.- Experience with REST APIs, JSON, asynchronous programming, and promises.- Understanding of Webpack, Babel, Vite, or other build tools.- Knowledge of version control systems (Git, GitHub/GitLab/Bitbucket).- Strong debugging and browser DevTools experience.- Ability to build responsive and mobile-friendly UI layouts.Good to Have :- Experience with TypeScript.- Familiarity with Next.js, SSR/SSG concepts.- Experience with CSS frameworks (Tailwind, Bootstrap, Material UI, Chakra UI).- Knowledge of performance optimization tools like Lighthouse.- Understanding of CI/CD pipelines.- Experience with cloud environments (AWS, GCP, Azure) is a plus.- Basic knowledge of UX principles.Soft Skills :- Strong problem-solving and analytical skills.- Excellent communication and teamwork abilities.- Ability to work independently with minimal supervision.- Attention to detail and commitment to high-quality delivery.Why Join Us?- Opportunity to work with modern front-end technologies and cutting-edge projects.- Collaborative, growth-focused work culture.- Exposure to high-performance systems and user-centric product engineering.- Competitive compensation and career progression opportunities. (ref:hirist.tech)