Subash Rai
IBM FullStack JavaScript Developer
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Full Stack JavaScript Developer
Upwork • Freelance
Sep 2024 - Present • 1 yr 10 mos
Working as a Full Stack JavaScript Developer specializing in MERN stack and modern web technologies. I build scalable web applications using React, Next.js, Node.js, Express, and databases like MongoDB and PostgreSQL. I also work with Supabase, Firebase, and REST APIs for backend and authentication systems. Additionally, I develop mobile applications using React Native (Expo) with EAS Build for production-ready Android and iOS deployments. I also work extensively with Next.js for server-side rendering (SSR), API routes, and performance-optimized web applications. I use custom CSS, Tailwind CSS, and modern UI libraries/frameworks such as ShadCN UI, Material UI, and component-based design systems to build responsive and modern user interfaces. Key responsibilities include: • Frontend development with React & Tailwind CSS • Next.js development (SSR, App Router, API routes) • Mobile app development with React Native (Expo) • EAS Build setup and app deployment (Android/iOS) • UI development using custom CSS and UI libraries (ShadCN, Material UI) • Backend API development with Node.js & Express • Database design and integration • Authentication systems (JWT, Supabase Auth, Firebase Auth) • Deployment and cloud integration • Building scalable and production-ready applications I focus on clean code, performance optimization, and real-world project delivery.