Hari S Email & Phone Number

Santa Clara, California, United States

• Interacted with business analysts to study the requirements and design interfaces for the various use cases.• Used Agile methodology throughout the software development lifecycle (SDLC)• Worked in Digital Presentation Services team which will act as a middle layer between UI and Backend layers. • Followed Sprint model for the development of REST API's for Mobile Apps. • Worked with Spring Framework and Java 1.8 to design RESTful API’s. • Used Java 1.8 and Spring framework to develop Services that communicate with both front-end UI and Back-end systems. • Hands on Development and delivering contracts and Implementation of Controllers to UI to consume. • Experienced in developing API's based on swagger/WSDL files that we receive from back-end systems.• Hands on experience in writing test cases using Mockito framework to write the test cases for REST API's.• Worked with CI/CD tools such as Jenkins for the deployment and monitoring the build systems of the code and make sure code is pushed to all lower environments. • Used GIT as version management and GitHub as the repository• Worked on POC concepts to move Monolithic Applications to Microservices using Spring Boot and NoSQL and Cloud Environment AWS, Pivotal Cloud. • Used Maven as a build and dependency management tool for creating EAR, WAR, and JAR files to be deployed in application servers and integrated with Jenkins, and Jenkins Jobs.• Working with Product owners to understand the business flows and functionality.

Dallas, Texas, United States

• Interacted with business analysts to study the requirements and design interfaces for the various use cases.• Responsible for developing and modifying the existing service layer based on the business requirements. • Developed the necessary front-end user interfaces in JSPs, HTML, Java Script, CSS that will be integrated using Spring MVC Framework. • Worked on Spring Rest web service implementation.• Developed Form Beans/ JavaBeans, Spring Controller Classes and configured with the corresponding JSP pages in spring-config.xml file.• Used Spring Framework for Dependency injection and integrated with Hibernate Framework.• Implementation of Thread pool and locks for concurrency management.• Created the Hibernate mapping and properties files using spring modules like MVC, Web and ORM. Used Hibernate template to integrate Spring DAO business objects with respective tables from the database.• Created tables, stored procedures in SQL for data manipulation and retrieval, Database Modification using SQL, PL/SQL, Stored procedures, triggers, Views in Oracle 10g.• Involved in creating restful web services and consuming them. • Implemented various standard J2EE design patterns (Singleton, Factory, Data Access Object, MVC, Front Controller)• Used MAVEN for project management and build automation.• Developed Rest API’s using Spring Boot, Microservices, Java 1.8, Maven, Cloud Environment. • Used Subversion as a version control for implementing the application.• Controlled the log information by using framework Log4j.• Performed Unit Testing Using JUnit.

Pittsburgh, Pa

• Developed Complex batch job’s using spring –Batch Framework for conversion data like Case Merge and Case Client Elimination.• Involved in designing, estimating business requirements, and worked with business team to determine the needs, gather, analyze and document requirements.• Involved in design of database tables based on new requirements and on the mappings between legacy and new system.• Online web application was developed following MVC design pattern using Java 1.7, JSP, JavaScript, JSON, JQUERY, HTML, CSS, Servlets and EJB 3.0.• Front end JSPs are developed using custom tag libraries, dynamic tables are generated using JQuery and JSON elements.• Hosted and consumed web services using SOAP protocol. Worked on defining schemas and WSDL for the web services.•Used Session and request variables to hold the data between JSPs and EJBs.• Hosted and consumed JAX-WS web services.• Involved in performance tuning of the batch as well as online applications by writing and optimizing SQL queries.

Kansas City, Missouri

• Developed application using Struts 2 Framework that leverages classical Model View Controller (MVC) architecture consuming WebLogic web services. • Experienced in developing front end using UI/UX technologies JavaScript, HTML, CSS, jQuery. • Integrating Struts with spring by delegating Struts action management to Spring Framework using proxy. Used Spring Framework for Dependency injection.• Used Spring AOP for cross cutting concerns and IOC for dependency injection.• Used Hibernate in data access layer to access and update information in the database.• Hibernate framework is used in persistence layer for mapping an object-oriented domain model to a relational database (DB2).• Implemented J2EE design patterns.• Implemented various design patterns in the project such as Business Delegate, Data Transfer Object, Data Access Object, Service Locator, and Singleton.• Used SQL statements and procedures to fetch the data from the database.• Designed and developed the web-tier using Html, JSP’s, Servlets, Struts, and Tiles framework.• Used Http compression and AJAX for faster response time.• Implemented spring security features using AOP Interceptors for the authentication.• Extensively worked with HQL and hibernate criteria queries.• Used Hibernate annotations for hibernate mapping.• Used log4j for logging messages • Consumed Web Services (SOAP) from third party for send the emails in bulk. This service is used to send the emails to the customers in bulk as a part of Batch process.• Deployed the application on to WebSphere application server.• Used RAD as IDE and extremely worked with the WAS 7.0(WebSphere Application Server)

Hyderabad, Telangana, India

• Used Agile (Scrum) software development methodology.• Generated the use case diagrams, Activity diagrams, Class diagrams and Sequence Diagrams in the design phase using Star UML tool.• Responsible for identifying scope and assumptions for Estimates considering risks if any.• Involved staging and interface framework design using spring batch.• Designing and developing REST based Web Service using JSON / XML and JAX-RS.• Created spring batch jobs by using Groovy.• Implemented Multithreading in staging framework.• Experience in configuring build tools like Maven and ANT for the development and deployment.• Involved AT, SIT and production defect fixing.• Designed and developed the input/output data formats in XSD for the WSDL files and accordingly implementing services using Apache AXIS2.