• Developed RESTful APIs using Java 8, Spring Boot, and Micro services, using swagger for API documentation.• Integrated Kafka for event-driven architecture, enhancing scalability and increasing real-time processing.• Implemented testing strategies (JUnit, Mockito, Spring Test, JMeter), achieving 95%+ code coverage.• Streamlined CI/CD with Spinnaker, GitLab CI, and Circle CI, reducing deployment times and improved reliability.• Migrated SCM from GitHub to GitLab and CI processes from CircleCI to GitLab CI, improving productivity.• Managed serverless applications using Node.js and AWS components, increasing backend efficiency.• Led front-end development of an internal dashboard with Angular 10/11/12.• Created new XSL templates by collaborating with data specialists to address transformation needs.• Demonstrated strong time management and delivery independence.• Authored run books for Operations, improving incident response times and efficiency.

• Contributed to Agile (Scrum) phases, launching 5+ SPAs with Angular 4.0 aligned with Microservices architecture.• Improved app performance with Angular 4.0 lazy loading, CLI, and TypeScript for dynamic web components.• Led front-end development with React.js, creating 20+ screens and enhancing UI responsiveness using NPM.• Optimized performance with Elastic Search caching mechanisms, reducing data retrieval times significantly.• Integrated Node.js for server-side operations, boosting server response times by 35% with custom modules.• Ensured robust data persistence with Cassandra Node Connector, achieving high uptime in database connectivity.• Deployed 15+ Spring Boot microservices in Docker on Amazon ECS, improving deployment efficiency by 45%.• Secured RESTful services with OAuth 2.0, ensuring data protection and compliance with security standards.• Enhanced system longevity and maintainability through code refactoring for web service readiness.

• Engineered APIs with Hibernate for Oracle database interactions, improving data retrieval times significantly.• Developed web applications using Struts, enhancing responsiveness, and streamlining the development process.• Leveraged Spring Framework for dependency injection, integrating Hibernate and JSF for maintainable applications.• Used AJAX and JavaScript for client-side validations, improving user experience and reducing server load.• Created responsive apps with Spring MVC, jQuery, HTML5, Node.js, and Bootstrap, boosting user satisfaction.• Devised 8 SOAP web services for CRUD functionalities and employed Rest Easy services for report generation.• Implemented CI/CD pipelines with Jenkins, Docker, and Open Shift, enhancing deployment success and speed.• Enhanced Mainframe DB2 environment with robust Java and EJB components, improving system reliability.• Designed web services with Apache CXF, increasing inter-service communication and XML data transmission.

• Analyzed, designed, and implemented software applications using Java and J2EE, improving system efficiency.• Enhanced user experience with custom JavaScript validations, reducing form submission errors significantly.• Developed and deployed modules using Java, HTML, JSTL, JavaScript, CSS, and JSP increasing user engagement.• Managed SDLC for multiple projects, consistently delivering on time and exceeding performance targets.• Designed and sustained data layers with Hibernate, optimizing database interactions and boosting retrieval speeds.• Applied Core Java concepts like multi-threading and exception handling, improving processing speeds.• Orchestrated Java class packaging with Apache Ant and optimized backend operations with PL/SQL queries.• Coded and managed Servlets and JSP components on WebSphere, ensuring high uptime and seamless performance.•  Resolved defects in QA and production, reducing reported issues and maintaining high customer satisfaction.