• Expertise in developing test cases with JUnit and Mockito, and configuring application logging with Log4J and SLF4J for effective debugging and monitoring.• Developed and maintained dynamic and responsive web applications using React JS, creating controllers to manage client-triggered events and facilitate seamless server communication.• Implemented and maintained enterprise applications utilizing Java/J2EE technologies, including servlets, JSPs, and JDBC, ensuring robust backend support for web applications.• Optimized and managed database operations using Oracle SQL, ensuring data integrity, performance, and efficient retrieval of large datasets.• Leveraged Java 8 features such as Lambda expressions for developing resource classes and retrieving documents from databases, enhancing code efficiency and readability.• Utilized Spring core annotations for dependency injection, Spring MVC for developing RESTful APIs, and Spring Boot for building scalable microservices, streamlining application development and deployment.• Created RESTful web services adhering to JAX-RS specifications, employing Spring frameworks for enhanced persistence using Hibernate and JPA ORM frameworks.• Integrated CI/CD tools such as Azure DevOps and GitHub Actions with containerization tools like Docker and Kubernetes, modernizing legacy desktop applications and improving deployment processes.• Configured Spring Security to secure method calls and RESTful web services, ensuring robust authentication and authorization mechanisms.• Developed comprehensive unit tests using JUnit and implemented logging with Log4J, ensuring high code quality and effective debugging throughout the development lifecycle.• Utilized ServiceNow and Azure DevOps for ticket creation, bug tracking, and user acceptance testing (UAT), ensuring timely issue resolution and alignment with user requirements before application releases.

• Conceptualized and designed Microservices-based architecture using Spring Boot, ensuring loosely coupled and independently deployable services.• Successfully followed agile methodology in the Scrum Cycle model to achieve sprint goals and pushed continuous app updates to higher regions (Production).• Developed RESTful APIs using Spring Web, following REST principles to design resource-oriented endpoints and data representations.• Utilized Spring Data JPA to create data repositories, optimizing data access through standardized CRUD operations and custom queries.• Created a separate IBM MQ driver program which listens to messages from IBM MQ and making Rest Template API calls for validation. Eventually, inserting the response into db2.• Developed web pages using HTML5, CSS3, JSP, JavaScript, Angular, Node JS and Angular 8• Secured API endpoints using Spring Security, implementing authentication and authorization mechanisms, including token-based authentication.• Worked on multiple databases including MySQL, Dynamo DB, and Cassandra. • Used Java 8 features like Lambda Expressions and Stream API for bulk data operations on collections to increase the performance of application.• Experience in container systems like Docker and container orchestration like EC2 container service, Kubernetes.• Used Java 8 Method References feature to point to methods by their names and used functional interfaces.• Used Bitbucket for code repository and version control and worked with Stash.• Developed API for using AWS Lambda to manage the servers and run the code in the Dynamo DB.• Experience with AWS (AWS Cloud Formation, AWS SQS, S3, Lambdas). • Worked on MYSQL database for managing data. • Used JENKINS for CICD (Continuous Integration and Continuous Deployment). • Setting up the basic project set-up from scratch of Spring-Hibernate App based on Design.

• Developed web pages using HTML5, CSS3, JSP, JavaScript, AJAX, jQuery, JSON, Node JS, Angular 8 and Bootstrap. • Implemented the persistence layer using Hibernate and configured Hibernate with spring to interact with the Cassandra Database from the DAO. • Used struts tag libraries like html, bean, and logic in the JSP pages.• Worked on multiple databases including MySQL, Dynamo DB, and Cassandra. • Implemented Kafka producer and consumer applications on a Kafka cluster setup.• Developed and Implemented Restful Web Services and used Spring Framework. • Used Swagger for documenting for Rest Web Services. • Experience in working with Docker, Kubernetes, ECS container services and successfully deployed the images in the cloud environment for managing Application.• Used Java 8 features like Lambda Expressions and Stream API for bulk data operations on collections to increase the performance of application.• Speeding up Existing Applications with a Cache services using Redis Cache.• Used the lightweight container of the Spring Framework to provide architectural flexibility for inversion of controller (IOC). • Designed and developed Micro services business components using Spring Boot. • Deployed .war files in Apache Tomcat server. • Involved in scalable data design for Dynamo DB and Redis, caching in Dynamo DB with Redis Cache Using Spring Boot.• Created POC for various functionalities using latest Java 8 Technologies such as Functional programming, Lambda expressions, Parallel Streams API. • Experience in container systems like Docker and container orchestration like EC2 container service, Kubernetes.• Used Scala collection framework to store and process the complex consumer information.• Implemented RabbitMQ message queuing for post processing after submission.• Used Java 8 Method References feature to point to methods by their names and used functional interfaces.

Interacted with the Business Analyst team during requirement gathering and participated inregular team meetings for proper communication and to resolve the issues. • Actively involved in Analysis, Design, Development, System Testing and User AcceptanceTesting.• Successfully followed agile methodology in the Scrum Cycle model.• Developed web pages using HTML5, CSS3, JSP, JavaScript, AJAX, jQuery, JSON, Node JS,Angular 8 and Bootstrap.• Implemented the persistence layer using Hibernate and configured Hibernate with spring tointeract with the Cassandra Database from the DAO.• Used struts tag libraries like html, bean, and logic in the JSP pages.• Worked on multiple databases including MySQL, Dynamo DB, and Cassandra.• Implemented Kafka producer and consumer applications on a Kafka cluster setup.• Implemented Spring AOP for admin services.• Developed enterprise applications using Scala.• Developed and Implemented Restful Web Services and used Spring Framework.• Used Swagger for documenting for Rest Web Services.• Worked on creating IAM roles and creating appropriate Policies to access Secrets manager.• Used Java 8 features like Lambda Expressions and Stream API for bulk data operations oncollections to increase the performance of application.• Speeding up Existing Applications with a Cache services using Redis Cache.• Used the lightweight container of the Spring Framework to provide architectural flexibilityfor inversion of controller (IOC).• Used different phases of JSF lifecycle for client-side and server-side data validation.• Configured Hibernate framework with Spring MVC.• Designed and developed Micro services business components using Spring Boot.• Deployed .war files in Apache Tomcat server.• Involved in scalable data design for Dynamo DB and Redis, caching in Dynamo DB with RedisCache Using Spring Boot.

Interacted and coordinated with the Design team, Business analyst and end users of thesystem.• Created sequence diagrams, collaboration diagrams, class diagrams, use-cases and activitydiagrams using Rational Rose for the Configuration, Cache & logging Services.• Wrote authentication and authorization-classes and manage it in the front-controller for allthe users according to their entitlements.• Developed the presentation layer using Servlet, HTML, CSS, JavaScript, JQuery and XML.• Developed the application using Spring Web MVC architecture and Spring AOP.• Used SQL as the query languages in Hibernate Mapping and Integrated Spring and Hibernateframework.• Developed SOAP based Web Services for Integrating with the Enterprise Information SystemTier.• Developed and deployed Session Beans and Entity Beans for database updates.• Developed stored procedures and complex packages extensively using PL/SQL and shellprograms on Oracle Database.• Used Log4J for logging and debugging purposes.• Wrote Junit test classes for the services and prepared documentation.