Ravinder Kumar
Senior Frontend Engineer / Frontend Developer - React | Javascript | Typescript | HTML | CSS | Redux | Building Scalable UIs for SaaS & Enterprise Apps
- Role
- Frontend Developer at JPMorganChase
- Location
- New Delhi, DL, IN
- LinkedIn followers
- 500 followers
About Ravinder Kumar
I’m a Senior Frontend Engineer with 7+ years of experience designing and delivering…
Experience
Frontend Developer
Aug 2022 — Present · Bengaluru, IN
Developing responsive, accessible, and high-performance UIs using React.js, Next.js, JavaScript, HTML5, and CSS3within a modular, component-driven architecture. Collaborating with cross-functional teams, including designers and product managers, to transform business requirements into scalable and reusable frontend solutions. Implementing real-time data synchronization through WebSockets for live updates and managing large datasets with virtualization and server-side pagination. Optimizing frontend performance using tools like React Profiler, Lighthouse, and Chrome DevTools by applying lazy loading, code-splitting, and Suspense techniques. Leading code reviews and mentoring peers to enforce best practices, improve code quality, and ensure consistent adherence to accessibility and design standards.Highlights Migrated a large-scale enterprise application from React 16 (class-based) to React 18 (functional components), improving load time by 35%, reducing bundle size by 25%, and accelerating feature delivery by 30%. Engineered virtualized, real-time data tables using react-window, server-side pagination, and WebSockets, reducing rendering lag by 70% and cutting support tickets by 40%, while significantly enhancing user experience andengagement. Developed a scalable, modular React component library and design system, refactoring the legacy codebase to reduce redundancy by 60%, accelerate feature delivery by 25%, and improve UI consistency and maintainability. Achieved a 15% reduction in post-production defects by consistently contributing to structured code reviews and testing initiatives. Delivered sprint stories on time while maintaining a strong focus on UX fidelity and accessibility compliance.
Education
Guru Nanak Dev Institute of Technology, Sector 15A, Rohini, Delhi, 110089
Diploma, Computer Engineering
2013 — 2016
Indira Gandhi National Open University (IGNOU), Delhi
Bachelor of Computer Application, Computer Science
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