With 7 years of experience in MERN stack development, I have been actively involved in designing and developing end-to-end web applications across multiple domains including SaaS platforms, enterprise dashboards, and custom business solutions. My responsibilities include building scalable backend architectures using Node.js and Express.js, designing optimized MongoDB database structures, and developing responsive, component-based user interfaces using React JS.I have worked extensively on REST API development, third-party integrations, authentication systems (JWT, OAuth), and performance optimization for high-traffic applications. My experience also includes leading technical discussions, collaborating with cross-functional teams, and ensuring code quality through best practices such as modular architecture, reusable components, and clean coding standards. I have successfully delivered production-grade applications that are scalable, maintainable, and optimized for long-term growth.