Senior Frontend Developer

Role Overview: As a skilled and experienced Senior Frontend Developer, your primary responsibility will be to lead the development of a real-time messaging web application. You will work closely with the product, design, backend, and mobile teams to create a high-performance, responsive, and secure web client that offers a seamless communication experience across devices and platforms. Key Responsibilities: - Frontend Architecture & Development: - Design and implement a performant, modular, and scalable web app using React, TypeScript, Next.js, or other modern frameworks. - Build and maintain core messaging features such as real-time chat, group messaging, media sharing, typing indicators, read receipts, and notifications. - Create reusable UI components to ensure consistent design throughout the platform. - Real-Time Communication: - Integrate WebSockets, WebRTC, or similar real-time communication protocols to support live chat and media sharing. - Ensure message syncing, delivery tracking, offline handling, and real-time UI updates. - Security & Privacy: - Collaborate with backend/security teams to implement end-to-end encryption, secure session management, and authentication workflows. - Ensure secure data handling in the browser including local storage, cookies, tokens, and message caching. - Cross-Platform Optimization: - Optimize the app for performance, accessibility, and responsiveness across various browsers and screen sizes. - Ensure smooth operation on Chrome, Firefox, Safari, and Edge. - Testing & Quality Assurance: - Write unit, integration, and end-to-end tests using tools like Jest, Cypress, or Playwright. - Participate in code reviews, test automation, and bug triaging. - Collaboration & Deployment: - Work collaboratively with backend (Java/Erlang) and mobile teams (iOS/Android) to align feature development. - Integrate frontend with RESTful and WebSocket APIs. - Contribute to CI/CD pipelines, release management, and production monitoring. Qualification Required: - 6+ years of professional experience in web development, specializing in building production-grade applications. - Proficiency in JavaScript/TypeScript and modern frontend frameworks (preferably React and Next). - Experience with real-time communication technologies like WebSockets, Firebase, or similar. - Strong understanding of HTML5, CSS3, Responsive Design, and Cross-Browser Compatibility. - Familiarity with REST APIs, WebSocket APIs, and frontend state management (Redux, Zustand, etc.). - Solid grasp of security principles including XSS, CSRF, CQRS, HTTPS, token handling, and secure storage. - Experience with performance profiling, lazy loading, code-splitting, and network optimization. (Note: There are no additional details of the company in the provided job description.),