Application Development: Design, develop, and maintain web applications using the MERN stack (MongoDB, Express.js, React.js, Node.js). API Integration: Build and integrate RESTful APIs and ensure smooth communication between front-end and back-end systems. Database Management: Create and optimize MongoDB schemas, perform CRUD operations, and ensure data security and efficiency. Front-End Development: Develop responsive, user-friendly interfaces using React.js, Redux (or Context API), HTML, CSS, and JavaScript/TypeScript. Back-End Development: Implement server-side logic, authentication, authorization, and middleware using Node.js and Express.js. Version Control: Use Git/GitHub for code versioning, collaboration, and maintaining clean project documentation. Testing & Debugging: Write unit tests, debug code, and ensure high performance, scalability, and reliability of applications. Collaboration: Work closely with UI/UX designers, product managers, and other developers to deliver high-quality solutions.