Software Development Engineer III - Frontend Architecture

About the Role : We are looking for an experienced SDE-3 Frontend Engineer to build scalable, high-performance web applications. The ideal candidate should have strong expertise in React.js, JavaScript (ES6+), GraphQL, WebSockets, and modern frontend architecture. You will work closely with product managers, designers, and backend engineers to deliver seamless user experiences. Key Responsibilities : - Design, develop, and maintain complex frontend applications using React.js. - Build reusable, modular, and scalable UI components. - Develop real-time features using WebSockets. - Integrate frontend applications with GraphQL APIs. - Optimize application performance, responsiveness, and accessibility. - Collaborate with UX/UI designers to implement pixel-perfect interfaces. - Write clean, maintainable, and well-documented code. - Conduct code reviews and mentor junior developers. - Work with cross-functional teams in an Agile/Scrum environment. - Troubleshoot and resolve production issues efficiently. - Ensure best practices in security, testing, and code quality. Required Skills : - 5+ years of experience in Frontend Development. - Strong expertise in React.js. - Excellent knowledge of JavaScript (ES6+). - Hands-on experience with GraphQL (Apollo Client or similar). - Experience implementing WebSocket-based real-time applications. - Strong understanding of HTML5, CSS3, Responsive Design. - Experience with Redux, Context API, Zustand, or similar state management. - Familiarity with REST APIs. - Knowledge of Webpack, Vite, Babel, and build tools. - Experience with Git and version control workflows. - Understanding of browser rendering, performance optimization, and debugging. - Familiarity with unit testing frameworks like Jest and React Testing Library.