Zain

Full Stack MERN Developer

techBean • Fulltime

Mar 2025 - Present • 1 yr 4 mos

Developing full stack web applications using the MERN stack (MongoDB, Express.js, React.js, Node.js). Specializing in building modern, scalable, and responsive web solutions for businesses, startups, and individual developers across various industries. On the frontend, I work with React.js, Redux, Context API, React Router, and Tailwind CSS to build responsive and pixel-perfect user interfaces. I focus on component architecture, state management, performance optimization, and fixing UI bugs, rendering issues, layout problems, and responsiveness errors across all screen sizes and devices. On the backend, I develop scalable REST APIs using Node.js and Express.js. I handle authentication with JWT and OAuth, middleware configuration, error handling, server optimization, and debugging backend issues including 500 errors, CORS problems, broken endpoints, authentication failures, and API response errors. For databases, I work with MongoDB and Mongoose for schema design, data modeling, query optimization, and aggregation pipelines. I also integrate Firebase for real-time data, authentication, and cloud storage solutions in full stack applications. I specialize in JavaScript ES6+ development and debugging, fixing complex bugs across the full stack including frontend errors, backend crashes, API issues, and database problems. My key focus areas include e-commerce platforms, SaaS dashboards, admin panels, and custom business web applications. I deliver clean, maintainable, and well-documented code with fast turnaround, clear daily communication, and a strong commitment to quality and client satisfaction on every single project.