Worked on parsing the XML files using DOM/SAX parsers.Involved in Integration of Amazon Web Services AWS with other applications infrastructure.Designed user-friendly UI wireframes for a web application using Adobe XD and GUI.Developed a single page web application using ReactJS and NodeJS, to create an efficient one stop shop for all companywide status updates and track employees’ progress of tasks.Involved in writing Java API for Amazon Lambda to manage some of the AWS services.Expertise in implementing view-rendering JavaScript using React JS and JQuery.Used multi-threading in programming to improve overall performance using Singleton design pattern in Hibernate Utility class.Used spring framework with EJB 3.0 to create these services which are able to handle transactions in millions.Worked on update feature for an automobile client to reduce the overhead of deleting and re-adding unwanted data from/to the database, allowing more efficient use of resources.Developed RESTful web services using JAX-RS, Apache CXF and spring frameworks and persistence using Hibernate and JPA ORM frameworks.Developed application using Spring MVC, JSP, JSTL and AJAX on the presentation layer, the business layer is built using spring and the persistent layer uses Hibernate.Creating and designing data ingest pipelines using technologies such as Apache Storm-Kafka.Worked aggressively towards continuous improvement by implementing unit test cases using testing tool Cucumber.Integrated with Spring Cloud projects to provide distributed tracing and other features.

Involved in various SDLC phases like Requirement gathering, Design, Analysis and Code development and the project was developed using Agile based SCRUM Methodology.Developed Single Page applications using Angular 9 using components, directives using Typescript.Created read replicas of AWS-RDS-NoSql Mongo DB in various regions and AZs using backups and snapshots and scale out AWS-RDS-NoSQL Mongo instance to additional AZs and regions based on requirements using DB snapshotsWorked on Jenkins and Docker for CI / CD of the microservices developed and managing them.Tested the response format of REST services in XML, and JSON. Used various drivers specific to each browser to write scripts for testing across various browsers. Implemented a production ready, load balanced, highly available, fault tolerant Kubernetes infrastructure.Composed and executed Mongo DB scripts to insert and update NoSQL database, automating data changes and reporting.Developed front end pages using HTML/CSS/JS. Using Angular 8/9 for front end development. Implemented Spring MVC. Implemented Thread Based Multi-Tasking concept.

Involved in SDLC Requirements gathering, Analysis, Design, and Development, testing production of the application using both Waterfall model Kanban.Implemented Business processes such as user authentication, using Session EJB Intercepting filter design pattern used for all the pre-processing and post-processing purposes which include session validation, authorization, logging.Designed and developed presentation layers using JSP, Java Beans, CSS, HTML, DHTML, jQuery and JavaScript, Json in UI pages.Writing JavaScript functions for various validation purposes. Writing Java Beans to contain data objects. Implemented session beans, entity beans, and message-driven beans.Develop custom directives, controllers, views and filters using Angular JS, Angular 2/4

Implemented Business processes such as user authentication, using Session EJB Intercepting filter design pattern used for all the pre-processing and post-processing purposes which include session validation, authorization, logging.Designed and developed presentation layers using JSP, Java Beans, CSS, HTML, DHTML, jQuery and JavaScript, Json in UI pages. Writing JavaScript functions for various validation purposes. Writing Java Beans to contain data objects. Implemented session beans, entity beans, and message-driven beans. Develop custom directives, controllers, views and filters using Angular JS, Angular 2/4

Developed and implemented spring and J2EE based MVC (Model-View-Controller) framework for the application. Designed, developed, and maintained the data layer using Hibernate. JUnit was used to do the Unit testing for the application. Performed the analysis, design, and implementation of software applications using Java, J2EE. Involved in coding, maintaining, and administering Servlets, and JSP components to be deployed on a Web Sphere Application server.