Provided programming estimates, identified potential problems and recommended alternative solutions.Responsible for developing java components using Spring, Spring JDBC, Spring Transaction Management. Involved in the creation of interface to manage user menu and Bulk update of Attributes using Angular 10/9/8, Bootstrap.js, Node.js, EXT.js and JQuery.Used Spring JDBC in persistence layer that is capable of handling high volume transactions.Developed Application classes by Core Java collections, Exception handling, Generics, Design patterns are used and they are for client data like created Services, Business Delegate, POJO, Controller and DAO. Used Amazon Cloud Watch to monitor AWS services and Amazon Cloud Watch logs to monitor application. Build numerous Lambda functions using python and automated the process using the event created. Experience with stream processing using Kafka and Kafka Connect.Implemented Kafka log compaction mechanism for restoring state in case of system failure.Created web services and desktop applications to access and display data needed by support teams using, Ajax, JavaScript, JQuery, Angular 9/8, Node.js, Java, CSS3 and HTML5. Implemented the function to send and receive AMQP messages on RabbitMQ synchronously and asynchronously, and send JMS message to Apache ActiveMQ on the edge device.Used JavaScript for performing client-side validations. Written Programs in Spark using Scala and Python for Data quality check.Scheduled, deployed and managed container replicas onto a node cluster using Kubernetes.

Participated in system design, planning, estimation and implementation.Developed application components using Spring, Spring-Data, Spring Boot and Oracle.Developed various EJBs (session and entity beans) for handling business logic.Worked on PL/SQL and created views, triggers, functions and stored procedures where ever necessary to improve the performance in Oracle database.Extensively used STS for developing, debugging, integrating and deploying the application.Developed the application using MVC Framework.Assisted in creating automated test scripts for testing Web API using SOAP UI & Postman to check if the APIs are returning the data in JSON, XML format, and documented APIsusing Swagger Tool.Used various Core Java concepts such as Exception Handling, Collection APIs and Executer Service Framework to implement various features and enhancements.Used Spring extensively to achieve dependency injection to wire the object of business class.Used Spring Data Repositories to perform CRUD operations. Used advanced java 8 features like Lambda expressions for array operations, Streams, Method reference, collections.Developed Microservices using Spring MVC, Spring Boot, and Spring Cloud.Used Maven tool to build the application and deployed on the Tomcat Application Server.Used Jenkins for the automatic build process and used for integration testing and deploying software.Involved in writing Java API for Amazon Lambda to manage some of the AWS services.

Involved in all phases of the project from analysis and requirement phase to delivering the project. Developed internal coding using J2EE technologies based on the MVC Architecture. Used Hibernate Transaction Management, Spring/Hibernate Batch Transactions, and Hibernate cache concepts. Created new tables, PL/SQL stored procedures, functions, views, indexes and constraints, triggers and required SQL tuning to reduce the response time in the application. Focused on Test Driven Development; thereby creating detailed JUnit tests for every single piece of functionality before actually writing the functionality. Achieved Dependency injection by creating Spring services, Spring controllers, and DAOs so as to wire objects of business classes. Implemented DAO pattern to fetch data from database using Hibernate in order to carry out various database operations and also avoid redundant database access statements Unit testing through JUnit & Integration testing in staging environment Resolved bugs/defects in the application by coordinated with team members of the project to assure a positive outcome. Scheduled daily status meetings within the offshore team and also used to communicate the same to the onsite team accordingly. Involved in configuring XML mapping files and POJO objects. Created System Requirement Specifications (SRS) report of the project by collecting all the requirements from client. Analyzed the requirements and formulated project scope. Designed front-end presentation logic using JSP, CSS3, and Strut tags. Implemented client-side validations using JavaScript. Developed various generic JavaScript functions for validations.Used AJAX extensively to implement front end /user interface features in the application. Implemented REST Web services to retrieve data from client side. Exposed the Web Services to the client applications by sharing the WSDL. Used Multi-threading and caching to improve the user experience.