Developed a fully functional group chat web application using Java Spring Boot for the backend and Thyme-leaf for the frontend.Designed and implemented RESTful APIs in Spring Boot to handle user registration, authentication, and chat operations.Integrated WebSocket protocol for real-time messaging, ensuring instant communication between users.Built a responsive and interactive user interface with Thyme-leaf, enabling users to create chat rooms, send messages, and view chat history.Utilized Spring Security for robust user authentication and role-based access control.Managed application state with Redux for efficient state management across the application.Persisted user data and messages in a MySQL database using Hibernate for seamless database interactions.Conducted unit and integration tests to ensure high code quality and reliability.Deployed the application on AWS EC2,continuous integration and deployment.

Developed a secure and efficient payment gateway web application using Java Spring Boot for the backend and Thyme-leaf for the frontend.Designed and implemented RESTful APIs in Spring Boot to handle payment processing, transaction management, and user authentication.Integrated with third-party payment providers such as Razorpay for processing payments.Built a responsive and interactive user interface with Thymeleaf, enabling users to initiate payments, view transaction history, and manage profiles.Implemented encryption, tokenization, and secure communication protocols to ensure secure transaction processing.Utilized Spring Security for robust user authentication and role-based access control.Persisted transaction data and user information in a PostgreSQL database using JPA/Hibernate.Conducted unit and integration tests to ensure high code quality and reliability.Deployed the application on Aws Ec2, for continuous integration and deployment.