Developing RESTful Services with Java using JAX-RS, and Spring Boot. Coding for consuming the REST APIs, gettingJSON response, and parsing them to get the required formats.Used design patterns like Singleton, Data Access Objects, Factory and MVC patterns. Implementing Spring Framework AOP logging in the application, Spring DAO for data access.Performed User Interface Design and coding using Java, Spring framework, Servlets, Hibernate framework and webtechnologies.Deploy the code to Development, QA, and Production environments. Provide inputs on the test data preparation phase. Investigate and troubleshoot Production issues.Create Incident/Problem tickets in ServiceNow to resolve known issues.

• Involved in gathering, analyzing, and documenting business requirements, functional requirements, and data Specifications for application development.• Application and use of various design patterns such as DAO, Data Transfer Objects, Front Controller, and Business Delegates. • Developed REST Web Services clients to consume those Web Services as well other enterprise wide Web Services.• Responsible for Unit testing with JUnit and support for Integration testing and User acceptance testing. • Exposed the Web Services to the client applications by sharing the WSDL. • Parsing various format of files like XML, JSON format files and load into Oracle database with XML and JSON modules • Application designed and developed using Java Core, J2EE, JMS, JavaScript, Spring MVC, Spring boot, Hibernate, Spring Integration, RESTful Services, UDP, TCP, and Web Sockets. • Involved in bug fixes, enhancements, and code refactoring.

- Implemented Authentication & Authorization with Site Minder and Spring security.- Kafka integration with Spark using Spark Streaming API.- Successfully did set up a Kafka listener in parallel with Kerberos (SASL) Listener. Also tested non-authenticated user(Anonymous user) in parallel with Kerberos user.- Efficiently handled periodic exporting of SQL data into Elasticsearch.- Developing Web Application in Groovy/Grails with Mongo DB as a data store.- Experienced ECM proof of concept environment, involving SQL, Web Sphere Application Server.- Created and maintained several Microservices serving various functions in the cloud-service layer as well as the web layer.- Implemented a Continuous Delivery pipeline with Docker, Jenkins, GitHub, and AWS AMI.

- Developed client-side Interface using React JS.- Used popular Node.js frameworks like Express and Restify to mock a Restful API.- Utilized Spring Annotations and XML Configuration for Dependency Injection.- Wrote Rest-Controller related to RESTful standards in Spring MVC to connect model with view.- Used GIT to maintain and modify the code and configurations related to Jboss. Used Bamboo linked with GIT repositories.- Created Containers in Docker.- Trimmed the Jboss EAP to create the slim version of the Application Server and secured the Jboss application server.- Used React Observables to create custom components for data manipulations and to display data in company standard format.- Setup and benchmarked Hadoop clusters for internal use.- Exported SQL data into Elasticsearch to allow much faster and scalable user searches from the database and integrated Java and Angular based application to Elastic Search tier via Spring 4 Restful Controllers communicating to a custom java utility wrapping the Jest API.

- Developed the single page application following Agile Scrum, participated in daily standups, sprint reviews and usedJira for project management.- Implemented the front-end using HTML 5, XHTML, DHTML, XML, CSS3, JavaScript and Angular JS.- Created solutions for service-to-service security in PCF- Created standards and patterns for deploying a spring boot data Microservice architecture to PCF- Utilized AngularJS framework to bind HTML template (views) to JavaScript object.- Created Custom Directives in AngularJS, making use of Modules and Filters objects according to the application requirement.- Developed unit test cases using Karma as a unit test runner for various application modules.- Developed views using Bootstrap components, Angular-UI, and involved in configuring routing for various modules using angular UI router.

-Developed the dynamic User Interface using Java Server Pages utilizing Custom Tag Libraries, HTML, CSS, and JavaScript.- Used AJAX to implement user-friendly and efficient client interfaces.- Deployed Web Services for updating the information to the workflow steps and getting the pre-configured workflow processes.- Involved in the development of cascading style sheets (CSS) to make the HTML documents to be displayed using different output styles.- Involved in developing Thread Safe blocks for multithread access and distributed transaction management.- Involve in full-scale development in Spring Framework.- Developed Session Beans to process requests from the user and used entity beans to retrieve and update customer information.- Implemented business tier using Spring MVC.- Created and injected spring services, controllers and DAOs to achieve dependency injection.- Developed Client-Side Validations using JavaScript and Server-Side Validations using spring validation framework.- Beans in the application for storing Customer information and billing work.- Designed and implemented DAO layer using Hibernate 3.0.