* Actively engaged in all phases of the Software Development Life Cycle (SDLC), including requirements gathering, modeling, analysis, design, development, and testing.* Designed and implemented microservices using Spring Boot and Spring Cloud, creating RESTful endpoints and integrating Swagger for dynamic documentation.* Utilized core Spring features such as Dependency Injection (DI), Inversion of Control (IOC), AOP, and Spring Security. Integrated Hibernate for ORM and applied concepts like inheritance, lazy loading, and transaction management.* Developed Spring Boot services that communicate via REST and Apache Kafka, ensuring seamless interaction between applications and microservices.* Managed Docker containers and Kubernetes orchestration, including deployment, scaling, and resource management. Packaged applications using Docker and maintained Kubernetes YAML configurations.* Worked with MongoDB for various data models and operations, including document, key-value, wide-column, and graph models.* Conducted performance testing to analyze and optimize service performance under load.* Designed and implemented CI/CD pipelines with Jenkins, AWS CodePipeline, and GitLab. Automated deployments to AWS EKS using Helm and established rollback strategies for deployment failures.* Provisioned and managed AWS resources including Lambda, EC2, and VPC. Configured IAM roles, security groups, and utilized AWS Secrets Manager for secure application management.* Managed asynchronous task execution with executor services and implemented custom exception handling strategies.

* Enhanced existing AngularJS applications and maintained CSS, HTML, JavaScript, JSON, JSF, Angular, and Bootstrap for designing dynamic web pages. Applied CSS techniques including layouts, positioning, and behaviors to create responsive interfaces.* Developed single-page applications (SPAs) using AngularJS, implementing two-way and one-way data binding, and leveraging Angular's built-in components.* Implemented and followed MVC patterns for improved source code maintenance, scalability, and ease of upgrades.* Designed and developed microservices using Spring Boot and Spring MVC. Created RESTful APIs and employed Kafka for inter-service communication.* Coded backend API microservices in Java/J2EE, utilizing Spring Boot to support the MVC design pattern and build scalable services.* Worked with MongoDB to manage document-oriented data, including concepts like locking, transactions, indexes, and schema design. Supported migration of Oracle applications to PostgreSQL.* Created and managed services for REST API consumption and communication between components. Used Postman for testing API endpoints (GET, POST, PUT).* Configured Glassfish as an application server for certain web applications.* Utilized tools such as Docker for containerization, Jenkins for CI/CD pipelines, and Git for version control.

* Engaged in all phases of the Software Development Life Cycle (SDLC), including requirements gathering, analysis, design, development, and testing, using Agile methodologies.* Developed user interfaces with HTML, CSS3, and JSON; created dynamic single-page applications (SPA) and client-side solutions using AngularJS and JavaScript, employing MVC architecture.* Utilized Angular.js for API integration and designed multi-browser-compatible pages; implemented form validation and interactive features using JavaScript, jQuery, and AJAX.* Applied Spring MVC for handling presentation and business logic; integrated Spring Data Access Object (DAO) with Hibernate for data access and transaction management, including Hibernate caching and batch transactions.* Developed and maintained RESTful and SOAP-based web services; used SoapUI for service testing and implemented various service classes and utility APIs.* Configured RabbitMQ for synchronous and asynchronous messaging and sent JMS messages to Apache ActiveMQ.* Developed proof-of-concept applications using Node.js and MongoDB.* Utilized Eclipse IDE and Gradle for the build process; improved code quality using Require JS and managed logging with Log4j.

* Designed and implemented microservices using Spring Boot, Spring Security, and Spring Batch. Developed RESTful APIs and integrated Apache Kafka for inter-service communication.* Utilized MongoDB for various operations and data modeling, including document, key-value, wide column, and graph models.* Developed UI components with Angular (versions 9 and 16) using dependency injection, data binding, and controllers. Built web forms and pages with HTML5, CSS4, Bootstrap, and JavaScript. Tested UI components using Protractor and Jasmine.* Leveraged Java 8 features such as Lambda expressions, Functional Interfaces, Stream API, and improvements in collections, concurrency, and I/O.* Provisioned and managed AWS resources including Lambda functions and EC2 instances. Implemented security groups and administered Amazon VPCs. Deployed Dockerized Spring Boot applications using AWS Elastic Beanstalk.* Developed server-side applications using Spring IOC and Hibernate for persistence. Integrated SQL Server with Spring Data JPA for CRUD and aggregation operations.* Created and managed custom Docker container images, tagged and pushed images, and integrated them with Spring Boot applications. Employed Docker and Kubernetes for container management and deployment.* Applied high availability practices and managed backup/restore infrastructure on AWS.

* Designed and developed user interfaces using Struts tags, JSP, HTML, CSS, and JavaScript, including user dashboards, admin pages, and role-based user modules.* Implemented multi-tiered J2EE applications with MVC architecture using Struts Framework, Spring MVC, and Hibernate ORM for robust data management and user interaction.* Developed functionalities with Servlets, JSP, Spring, and JavaScript, integrating business logic through Stateless session EJBs.* Utilized SOAP-based Axis Web Services for secure and reliable data transfer between remote financial institutions.* Wrote shell scripts for exporting Oracle table data and performed data updates using stored procedures and PL/SQL.* Managed logging and automatic batch jobs with Log4j 2.7 and conducted unit testing using JUnit.