Ozair M.

I’m a Full Stack JavaScript Developer specializing in React.js, Next.js, Node.js, Express.js, MongoDB (MERN stack), and Firebase, with strong expertise in building Chrome extensions and VS Code extensions. I help clients build, fix, and optimize web applications, from bug fixes and performance optimization to full-scale SaaS platforms. I also develop custom browser extensions, automation tools, and developer tools tailored to specific workflows. My services include: - Frontend development with React.js, Next.js - Backend development with Node.js, Express.js - Firebase (Authentication, Firestore, Realtime DB, Cloud Functions) - Full-stack MERN applications - Chrome Extension development (Manifest V3, APIs, automation) - User script development (Tampermonkey, Greasemonkey, Violentmonkey) for browser automation, web scraping, DOM manipulation, UI customization, and workflow optimization - VSCode Extension development - Debugging, bug fixing, and performance optimization - API integration and scalable architecture I focus on clean, scalable, maintainable code, fast delivery, and reliable, production-ready solutions.