Developed OTP validation features in Spring Boot using third - party API services for user authentication. Implemented CRUD operations for the Bus Module REST API, ensuring seamless management of bus- related data. Utilized JPQL with joins concepts to efficiently retrieve data from relevant tables, enhancing search functionality. Developed a feature to generate PDF tickets upon successful booking using the iTextPDF library, ensuring a smooth ticketing process. Implemented Spring Security with JWT token authorization and authentication for secure user access. Successfully set up a sandbox account and integrated payment gateway to facilitate seamless transaction. Utilized third-party email services for booking and forgot password implementations, enhancing user communication. Ensured data integrity by validating all user inputs using Spring validation techniques. Employed LOMBOK annotation and Model Mapper to refactor codebase, improving code readability and maintainability. Implemented CRUD operations for posts and comments, enabling users to interact with blog content. Developed a user review module to gather feedback and enhance user experience. Implemented mapping concepts for the passenger table and performed CRUD operations to manage passenger data effectively. Designing and implementing RESTful Webservices for data exchange, using JSON for data serialization. Microservices architecture and best practices for building scalable and modular applications. Responsible for the end-to-end development and maintenance of RESTful APIs (GET, PUT, POST, DELETE) leveraging Spring Boot. Developing applications using the Spring Framework, including Spring Boot, Spring MVC, Spring Data JPA and Spring Security. Integrating third-party APIs, such as WhatsApp SMS, messaging SMS, payment gateways and Email API for extended functionality. Analyzed Entity-Relationship diagrams to understand database structures and performed development accordingly.

Proficient in JAVA/J2EE with expertise in OOPS, Collection, Multi-threading and JAVA 8. Experienced in developing application using the Spring Framework, including Spring Boot, Spring MVC, Spring Data JPA, and Spring Security, and Spring security. Knowledgeable in Hibernate for ORM and efficient Database management. Experienced in designing and implementing RESTful Webservices for data exchange, using JSON for data serialization. Knowledgeable about Microservices architecture and best practices for building scalable and modular applications. Proficient in API Gateway management within a microservices architecture. Implementing security features and authentication using Spring Security. Experienced in handling JWT token for secure authentication and authorization. Knowledge of JSP, Servlets and proficient in Mark-up languages like JSON. Skilled in working with MySQL for database design, SQL queries, and data manipulation. Comfortable with Agile Methodology, including Scrum for efficient project management. Experienced in writing and executing JUnit test to ensure code quality and reliability. Familiar with Git and GitHub for version control and Code collaboration. Skilled in implementing robust Exception handling mechanisms for application stability. Experienced in integrating third party APIs, such as WhatsApp, messaging SMS, Payment Gateway and Email API for extended functionality. Proficient in Report Generation in Excel and PDF formats ensuring comprehensive data representation. Expertise in implementing validation logic using Spring validation Framework. Experienced in debugging and optimizing Software application using Eclipse, Postman, STS and IntelliJ IDEA. Proficient in analyzing ER Diagrams in MySQL workbench for efficient database management. Experienced in preparing comprehensive API documentation using Swagger API for clear understanding and integration.