Sanjay Chandwani

Full Stack Developer with 3+ years of experience building scalable, production-grade web applications using the MERN stack. Specialises in React, TypeScript, Next.js, Node.js, and GraphQL. Known for owning features end-to-end — from architecture and API design to deployment — and for consistently delivering measurable performance gains. Strong collaborator across engineering, product, and design teams with a track record of shipping high-impact, maintainable code.

Full Stack Developer - Celebal Technologies

(2025-12)

• Architecting and developing full-stack features using the MERN stack for enterprise-grade client applications across multiple industry verticals.
• Building secure RESTful and GraphQL APIs with Node.js/Express, implementing JWT and OAuth 2.0 authentication with fine-grained role-based access control.
• Designing scalable React/Next.js frontend architectures with Redux Toolkit — driving component reusability and measurable rendering performance improvements.
• Integrating real-time features using Socket.io and WebRTC; delivering pixel-perfect, mobile-first UIs directly from Figma mockups.

Frontend Developer - DreamSoft4u

(2024-01 - 2025-11)

• Led frontend development of 3+ production React/Next.js applications — improved Core Web Vitals (LCP, FID, CLS) via lazy loading, code splitting, and memoization.
• Built and maintained 40+ reusable React components with Redux Toolkit, reducing feature delivery time by ~30% across the engineering team.
• Collaborated with backend teams to optimise REST API data-fetching patterns, cutting redundant network calls by 25%; achieved sub-2s Time to Interactive on key dashboards.

Frontend Developer - Sarvika Technologies

(2022-05 - 2022-12)

• Developed dynamic e-commerce UIs with React.js, Redux Saga, and Tailwind CSS, handling complex cart, checkout, and order-state management flows.
• Built animated bot/chat interfaces using Framer Motion — 20% uplift in user engagement, 15% drop in bounce rate, 25% increase in session retention (PostHog).

Frontend Developer Intern - FullStack Learning

(2021-01 - 2021-06)

• Developed responsive landing pages and interactive UI components with HTML5, CSS3, and vanilla JavaScript; applied WCAG accessibility and cross-browser compatibility standards.

Master of Computer Applications - MCA - Chandigarh University, Mohali (2022 - 2024)

Bachelor of Computer Applications - BCA - JECRC University, Jaipur (2018 - 2021)