Prithwish Sarkar

About Prithwish Sarkar

I’m a Full-Stack Developer with over 2 years of professional experience building scalable, user-focused web and mobile applications using modern technologies like React.js, React Native, Next.js, NestJS, TypeScript, and Node.js. I specialize in creating seamless user experiences, real-time systems, and modular backend architectures with efficient API design.Currently, I’m working on an e-commerce platform and a cross-platform social app. My work includes-Developing real-time chat systems (text, audio, video, file sharing, calls)-Implementing Stripe payment workflows for both users and merchants with conditional feature access-Building dynamic AI-powered translations across 8+ languages using OpenAI API-Designing scalable cart systems with real-time pricing, coupon handling, and location-based shipping-Optimizing backend performance through query refactoring and caching, reducing response times by ~40%Previously, I worked with a global EdTech client at TCS, improving web performance and responsiveness through optimized UI components and clean, mobile-first design.My tech stack includes:React.js, React Native (Expo), Next.js, NestJS, Node.js, TypeScript, Tailwind CSS, Zustand, MongoDB, REST APIs, Stripe, and Socket.IO.I’m passionate about clean code, scalable architecture, and user-first development. I’m currently open to remote full-stack roles where I can contribute to impactful products and grow alongside innovative teams.

Experience

1. Full Stack Developer

   Team Pumpkin

   Nov 2024 — Present

   E-commerce Platform-Designed and developed a scalable e-commerce platform with a strong focus on performance, cross-platform accessibility, and internationalization-Created a dynamic QR code system for app sharing with platform-aware redirection, improving install conversions by ~30%-Built responsive product pages and foundational cart architecture supporting thousands of SKUs with real-time pricing logic-Engineered a synchronized, state-consistent cart system handling quantity changes, location-based shipping, coupon discounts, and dynamic price updates across views-Implemented scalable search, filtering, and pagination with AI-driven multi-language support (8+ locales) using OpenAI API-Tech: Next.js, TypeScript, NestJS, REST API, Tailwind CSS, Zustand, ShadCN UI, Radix UIFriendship & Events App-Led the end-to-end development of a cross-platform mobile and web app designed to connect users by personality type and location, with strong admin and merchant support tools-Developed a real-time chat system with features like text, audio/video messaging, file sharing, and encrypted voice/video calls — supporting up to 50 concurrent users-Merchant and admin dashboards under a shared domain with JWT-secured endpoints and granular sub-role access control-Integrated Stripe with separate onboarding workflows for users and merchants, restricting access to key features until setup completion-Set up modular transactional email templates and optimized database queries, reducing API latency by ~40%-Events module with merchant-created events, group bookings, and fee-based cancellation and rescheduling-Fully functional calendar module with 2 major integrations: Google and Outlook. Users can view booked and synced events together, with search and filter functionality, as well as month and week views-Selfie verification and liveliness detection via AWS Recognition-Tech: React Native (Expo), Next.js, NestJS, Zustand, Tailwind CSS, Google API, REST API

Education

• Academy of Technology

  Bachelor of Technology - BTech, Computer Science