Involved in the complete software development life cycle (SDLC) of the application, from requirement analysis to testing.Participated in the complete software development life cycle (SDLC) from requirement analysis to testing.Developed full-stack applications using Java, Spring Boot, Spring MVC, and Hibernate, implementing the presentation layer with JSP, JSTL, and AJAX.Utilized Spring Core annotations for dependency injection (DI) and Spring MVC for REST APIs and employed Spring Boot for microservices.Implemented Java EE components, including Spring MVC, Spring IOC, Spring transactions, and Spring security modules.Developed microservices-based APIs using REST to connect with databases such as Oracle, Postgres, and Cassandra.Integrated JPA persistence using Hibernate and Spring framework for state management.Leveraged Java 8/11 features, including parallel streams, lambda expressions, and search functionality.Used Apache Kafka for data messaging between applications.Conducted performance testing on Node orchestration and REST API layers using Apache JMeter and httperf.Implemented Docker Maven plugin to build Docker images for microservices and used Docker files to build images from Java JAR files.Utilized CSS and Bootstrap for styling HTML elements.Developed and executed integration tests using JUnit to validate MongoDB interactions within Java applications.Created reusable TypeScript components and services to consume REST APIs using AngularJS's component-based architecture.Developed CI/CD systems with Jenkins in a Kubernetes environment, utilizing Docker for the runtime environment to build, test, and deploy.Used Node.js for server-side rendering and integration with design and requirements.Implemented functionalities with Spring Boot and Hibernate ORM, developing POJO objects and using Hibernate as the ORM tool for SQL Server.Conducted integration tests using JUnit to ensure correct MongoDB interactions.

Actively involved in the development, testing, and maintenance phases of the Software Development Life Cycle (SDLC).Served as a Senior Full Stack Developer, managing web, mid-tier, and database development for the application. Participated in agile development following the SCRUM process, including sprint planning and daily stand-up meetings.Designed and implemented the user interface using Angular, HTML, CSS/CSS3, SASS, and Bootstrap for a responsive enterprise application. Developed applications with frameworks and APIs such as Struts and Spring MVC and implemented Spring Boot to create a CRUD backend for an Angular-fronted application. Created custom directives in Angular 8 for reusable components, including multi-field form elements and background file uploads.Used Angular 8 observables and RxJS reactive libraries to simplify asynchronous calls to backend REST APIs. Implemented a recursive algorithm to parse large GraphQL introspection queries into dotfile format, visualizing one-to-many relations between schemas in SVG format. Developed reusable components and services in TypeScript to consume REST APIs using Angular 8's component-based architecture. Utilized Angular 8 to upload files and images to AWS S3 from the frontend by installing the AWS-SDK NPM package. Extensively used Java SE 8 features such as Stream API, Time API, functional interfaces, multithreading, lambda functions, transaction management, exception handling, and Collection API.

Collaborated with cross-functional teams to gather and analyze requirements for the development of an online e-commerce system.Led the development of new Java 8 and Spring APIs to enhance file tracking, archiving, recovery, and restoration based on client requests. Established critical notifications and improved user experience by implementing the first file notification service for clients using Spring Boot.Developed efficient Groovy scripts to build and configure complete CI/CD pipelines for all claims and remittances initiatives. Collaborated with the team to set up Jenkins, ensuring seamless continuous integration, testing, and automation.Headed the Docker containerization initiative, overseeing the deployment of all applications. Led continuous integration, regression, and automation testing for all claims and remittances initiatives.Created multiple microservices to divide claims and remittances, replacing a third-party program (Transaction Validation Manager) using Java 8 and Spring.Monitored performance and troubleshot issues related to WebLogic Server.Collaborated with cross-functional teams to ensure timely project delivery.Automated testing for a web application using Cucumber.Implemented real-time data streaming for a claims and remittance platform using Apache Kafka.Designed and developed Kafka connectors to integrate with various data sources, including MySQL, Elasticsearch, and AWS S3.Configured and optimized Kafka clusters to ensure high availability, scalability, and performance.Created Kafka consumer applications using Java and Spring Boot to process claims and remittance and analyze streaming data in near real-time.Developed monitoring and alerting solutions to ensure the health and performance of Kafka clusters.Collaborated with cross-functional teams to design and implement end-to-end data processing pipelines, including data ingestion, transformation, and analysis.

Involved in gathering business requirements, analyzing the project, and creating Use Cases and Class Diagrams.Implemented projects using Agile SCRUM methodology, participating in daily stand-up meetings, sprint showcases, and sprint retrospectives.Developed the web tier using JSP, Spring Boot 2.4, and Spring MVC.Utilized the Spring Framework for application implementation.Integrated Spring Dependency Injection (IoC) across different application layers.Used Hibernate for object-relational mapping and JPA for annotations.Designed and developed REST-based microservices with Spring Boot 2.4 and Spring Data JPA, using Swagger for API interaction. Implemented REST web services using the Apache-CXF framework.Proficient in HTTP methods (GET, POST, PUT, DELETE) for RESTful web services.Created various Data Access Objects (DAO) for adding, modifying, and deleting records.Implemented interface sub-classes using lambda expressions.Developed user interfaces for internal users using Spring MVC, Ajax, jQuery, and JSON.Applied design patterns like Singleton, MVC, DAO, and DTO to enhance application performance and reduce network traffic.Developed SOAP services with JAX-WS using the Apache CXF framework and represented data in XML format.Created WSDL documentation for web service agreements between producers and consumers. Performed load testing with JMeter to enhance code performance.Written Hibernate Criteria queries for data retrieval and performed ORM mappings to map Java entities to database tables.Utilized Java Message Service (JMS) for reliable, asynchronous information exchange from Java Message Queue.Developed server-side services using Java 1.8, Spring 2.5, and Web Services (SOAP, WSDL).Employed Hibernate for persistence in the middle tier, providing an object model over the relational data model.Created an environment for user acceptance testing and facilitated integration and testing with JUnit.

Collaborating with business and functional teams to gather requirements, analyze them, and develop web services using agile methodology.Developing RESTful web services with Spring Boot to handle HTTP requests and responses.Utilizing Spring Data JPA to create DAO repositories for database interactions.Designing and developing RESTful web services with high availability and low latency for data retrieval and client information validation.Implementing Hibernate as an Object-Relational Mapping (ORM) tool for persistent data storage and database communication.Creating unit and integration test cases using JUnit4 and executing them in Maven builds with Jenkins. Converted HTML pages to JSF tag-specific pages.