• Involved in preparing use-case diagrams, sequence diagrams, and class diagrams using Rational Rose, UML.• Implemented Standard interfaces to load legacy file-based eligibility information from carriers and mapped the information onto Hibernate entities to persist in the Oracle database.• Implemented a significant proportion of the Master Descriptions module which iREST-based web service and gives detailed information about Patients, Providers, Carriers, Coverage, Payers, Checking Accounts, and Business Groups.• Front-end development using JSP, HTML, Typescript, and JavaScript, and wrote custom tags.• Performed Validations on UI data using JSF validators. Built Angular6&8 modules, controllers, pop-up modals, and file uploaders.• Develop batch processes for financial reporting applications and modules using Perl and Korn shell scripts on Oracle database, with partitions and sub-partitions.• Worked on Pivotal Cloud Foundry (PCF) to host Cloud-based Applications. • Followed Spring MVC Framework for the development of the project.• Used Hibernate to store the persistence data in the Oracle database and wrote HQL to access the data from the database.• Re-designed, re-architected, and built the existing application using Java 11, Spring Boot, Spring Reactive Stack (Web Flux), GCP, PostgreSQL, and Maven.• Experience in writing policies for CA API Gateway (Layer 7).• Initially we had Node.JS/Express.JS to mock REST services and built the UI app using that mocked backend, but later we integrated with the real backend system and coordinated with the server-side development team.• Using Java features in developing the code like Lambda expressions, creating resource classes, and fetching documents from the database.

• Knowledge and experience working in an agile environment.• Involved in a full lifecycle of the project from requirements gathering to the development stage using Agile Methodology.• Developed e-commerce application modules such as Catalogue setup and Search (Solr, Elasticsearch, etc.).• Designed and developed Java backend batch jobs to update the product offer details.• Expertise in developing J2EE web applications using Java, Spring MVC framework, Spring Boot, Hibernate ORM framework and JPA, JSP, Servlets, Restful & SOAP Web services.• Designed and developed web-based applications using HTML5, CSS3, TypeScript, JavaScript, and bootstrap framework.• Responsible for Spark streaming configuration based on type of Input Source Developing business logic using Scala. Developing traits and case classes etc. in Scala.• Good experience in implementing Spark Streaming projects, preferably using Scala and Spark SQL.• Extensively Used Jenkins as a Continuous Integration tool to deploy Spring Boot Microservices to Pivotal Cloud Foundry (PCF) using build pack. • Expert in Core Java with in-depth knowledge of Core Java concepts such as Multithreading, Synchronization, Collections, and Event/Exception handling.• Written Jenkins pipeline template script in Groovy programming language for the automation of the build and deployment process.• Build responsive applications using AngularJS, and NodeJS. The application was compatible with mobile devices and different web platforms and browsers. Consumed different plugins and angular modules and providers.• Designed, developed, and implemented a test automation framework using automation tools such as Selenium, Cucumber, and SOAP UI.

• Involved in a full lifecycle of the project from requirements gathering to the development stage using Agile Methodology.• Developed e-commerce application modules such as Catalogue setup and Search (Solar, Elasticsearch, etc.).• Designed and developed Java backend batch jobs to update the product offer details.• Expertise in developing J2EE web applications using Java, Spring MVC framework, Spring Boot, Hibernate ORM framework and JPA, JSP, Servlets, Restful & SOAP Web services.• Designed and developed web-based applications using HTML5, CSS3, TypeScript, JavaScript, and bootstrap framework.• Responsible for Spark streaming configuration based on type of Input Source Developing business logic using Scala. Developing traits and case classes etc. in Scala.• Good experience in implementing Spark Streaming projects, preferably using Scala and Spark SQL.• Extensively Used Jenkins as a Continuous Integration tool to deploy Spring Boot Microservices to Pivotal Cloud Foundry (PCF) using build pack. • Expert in Core Java with in-depth knowledge of Core Java concepts such as Multithreading, Synchronization, Collections, and Event/Exception handling.• Written Jenkins pipeline template script in Groovy programming language for the automation of the build and deployment process.• Build responsive applications using AngularJS, and NodeJS. The application was compatible with mobile devices and different web platforms and browsers. Consumed different plugins and angular modules and providers.• Designed, developed, and implemented a test automation framework using automation tools such as Selenium, Cucumber, and SOAP UI.

• Created Class, Activity, and Sequence Diagrams using the IBM Rational Rose modeling tool.• Developed the presentation layer using JSP and Servlets with a RAD tool.• Used JavaScript for client-side validations.• Deployed Docker contained Spring Boot Microservices into AWS EC2 container service using AWS admin console and used Lambda, EC2, Elastic Beanstalk, Cloud Watch, Cloud Formation, IAM, S3, RDS, ElastiCache, SNS, (Amazon messaging services) SQS.• Designing and developing Microservices which enhance reusability and reduce the failure rate.• Developed unit and integration tests for existing Microservices using JUnit, Mockito, and Docker.• Used Spring Core for middle-tier development to achieve inversion of control.• Developed Message Driven Beans for sending asynchronous notification messages.• Designed and developed numerous Session Beans and deployed them on Web Sphere Studio Application Server.• Created test cases and Involved in Unit Testing using JUnit Framework.• Strong experience in coding using SQL, PL/SQL involving Stored Procedures, Triggers, and Cursors.• Developed the application using J2EE architecture.• Good working knowledge of NoSQL Databases MongoDB, Cassandra.• User interfaces were built with Virtual DOM and unidirectional data using ReactJS and Redux.• Responsible for creating web and website-based applications using JavaScript, and NodeJS. • Implemented AngularJS and NodeJS to create some dynamically changing websites.• Configuring the job in Jenkins to automate the process of running the NodeJS test cases. • Defined web services and API contracts between web client, API gateway, and client’s middle-wire services• Experienced in Web-based UI frameworks such as JavaScript, Ajax, jQuery, AngularJS, Angular2, ReactJS, Backbone JS, Tag Libraries, and Custom Tags.