Subhadeep Das
About
Who I Am
I am a results-driven Software Engineer specializing in Frontend development with React.js and Next.js. With a strong foundation in building scalable, high-performance web applications, I focus on delivering seamless user experiences through clean architecture and modern engineering practices.
What I Specialize In
I specialize in architecting modern frontend systems, from real-time communication platforms to complex enterprise dashboards, ensuring high performance, accessibility, and scalability.
- Core Technologies: React.js, Next.js (App Router), TypeScript, JavaScript (ES6+)
- Real-time & Communication: WebSockets (Socket.IO), WebRTC (Audio/Video Calling), Push Notifications (FCM)
- State & Data Management: Redux Toolkit, RTK Query, Zustand, TanStack Query, GraphQL
- Performance & Optimization: Core Web Vitals, SSR/SSG/ISR, Service Workers, Web Workers, Code Splitting
Experience
WebArt Technology
Software Engineer (Frontend – React.js / Next.js)
- Architected and scaled Next.js applications (App Router, SSR, SSG), improving SEO rankings and reducing LCP and TTI metrics.
- Designed and implemented a real-time chat platform using WebSockets and Socket.IO, enabling instant messaging and live presence.
- Integrated audio and video calling using WebRTC, handling signaling, peer connection lifecycle, and connection recovery.
- Implemented Service Workers for offline caching, background sync, and improved repeat-visit performance.
- Leveraged Web Workers to offload CPU-intensive operations, preventing main-thread blocking and UI jank.
- Built push notification workflows using Firebase Cloud Messaging (FCM) for real-time user alerts.
- Enhanced UI interactions with GSAP and Framer Motion, balancing animations with strict performance budgets.
- Optimized frontend performance through code splitting, lazy loading, memoization, and intelligent caching.
- Established testing standards using Jest and React Testing Library.
- Conducted code reviews focusing on performance, accessibility, and long-term maintainability.
Brainium Information Technologies Pvt. Ltd.
Software Engineer
Software Developer Intern
Stack
Featured Projects
Imboxo OTT
A high-performance media streaming platform with dynamic content discovery, custom video player integration, and seamless cross-device synchronization.
ZaDark Extension
A productivity-focused browser extension for Zalo Web, serving over 20,000 active users. Includes dark mode, UI customization, and custom scripts.
Education
Barrackpore Rastraguru Surendranath College
- Achieved a cumulative grade point average of 8.73 CGPA.
- Conducted research on 'Informal System Design and Synthesis in the Limelight of Asymmetric Type Functions' in collaboration with the Department of Computer Science.
- Presented research findings at a college conference in front of external evaluators from Kalyani Mahavidyalaya.
- Mastered advanced theoretical concepts and practical applications in modern computer science with a focus on system design.
Bangabasi College
Shyamnagar Kanti Chandra High School
Barrackpore Ramakrishna Vivekananda Mission
UI Playground
<button
style={{
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backgroundColor: '#10b981'
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className="shadow-lg..."
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Hover Me!
</button>Certifications
Meta Front-End Developer Professional Certificate
Coursera • Aug 2024
Responsive Web Design
freeCodeCamp • Jan 2023
Honors & Rewards
Star Performer of the Quarter
Webart • Dec 2024
Awarded for exceptional delivery of the RailTel / Govt PSU front-end architecture.
"A man who is master of patience is master of everything else."
— George Savile