• Involved in cross-platform and Open Source development including MEAN Stack, Angular JS, Angular 2+, Hybrid Frameworks like Ionic.• Developed complex Angular 8 UI nested components for reuse and rapid development of Angular2 for each SPA. • Addressing heavy traffic situation and migrating user-specific data off service instances and into a shared by using Microservices.• Worked on Core Java concepts such as OOP Concepts, Collections Framework, and Exception Handling, I/O System, Multi-Threading, JDBC, Generics.• All the functionalities are implemented using Spring IO / Spring Boot and Spring JDBC.• Used Java8 features in developing the code like Lambda expressions, creating resource classes, fetching documents from database.• Experience with creating script for data modeling and data import and export. Extensive experience in deploying, managing and developing MongoDB clusters. Experience in creating JavaScript for using DML operation with MongoDB.• Designed and developed the RESTful web services using the JAX-RS API to communicate over the network.• Implemented Angular 8 Services for connectivity between web application and back-end API'S using TypeScript.• Used design patterns like Singleton, Data Access Objects, Factory and MVC patterns.• Performed form validations using reactive forms from the Angular8 framework.• Utilized the features of Angular8 to present effective web design.• Created Angular8 Directives, Components, Pipes, Injectable across the whole system, such as to build the custom filter.• Developed various pages in the applications in front end technologies HTML5, CSS3-SASS, JSON, Angular 8.• Wrote Operations and corresponding handlers to communicate with Oracle database sitting on Linux/Unix server• Have Good experience with shell scripts, Linux and Unix commands.• Supporting MySQL and Postgres database for Pivotal Hadoop. Support Sybase as the source data.• Configured and deployed the application using Tomcat and Web Sphere.

• Used core Java to build new functionality based on requirements and implemented New Interface for Previously Ordered Page, Cart Page.• Designed and developed web based UI using JSP, Struts and developed action classes to handle the user requests. • Wrote JavaScript/ jQuery Ajax call to retrieve the customer data from the back-end and then display on the screen in a well-organized way.• Experience in Building applications using React JS which allowed us to render pages on both the client and server using the same codebase.• Utilized microservices and decoupled architectures for building RESTful APIs. • Experienced first-hand practices for integrating microservices into an existing system architecture. • Setup the (CI) and (CD) process for the application using the Jenkins. • Wrote SQL Queries, PL/SQL stored procedures, triggers and packages on Oracle database. • Developed web pages by using Spring MVC and JSP pages.• Implemented PL/SQL procedures and views in Oracle Database using Altova Database Spy.• Used IntelliJ as development tool, Tomcat as application server, Git was used for version controlling.• Used GitHub to maintain the version of the files and took the responsibility to do the code merges from branch to trunk and creating a new branch when new feature implementation starts• Created Rich UI applications using Angular integrating with REST API's built on Micro services. • Used JPA to develop server-side logic by writing configurations.• Using Struts in presentation tier and used Spring Core/IOC to wire/inject the object dependencies. • Responsible for getting business approvals for testing deliverables.• Developed Data access objects using DAO pattern, JDBC, Spring, Hibernate. • Functionality was implemented using Spring Boot and Spring Data JPA. Implemented Java EE components using Spring Boot, Spring IOC, Spring transactions, and Spring security modules.

• Developed and Maintained interactive and dynamic web pages with cross browser compatibility using hand coded semantic HTML, CSS, JavaScript, React JS and Bootstrap.• Server instances were created on AWS. Tomcat, Swagger were installed and used for deploying Microservices.• Developed messaging module using Spring JMS, Apache Camel and Active MQ. • Worked extensively on built-in components and developed single page applications using ReactJS .• Experience in Building applications using React JS which allowed us to render pages on both the client and server using the same codebase.• Implemented load-balancing with NGINX to allow dozens of React JS instances to handle thousands of concurrent users.• Experience with Front-end JavaScript frameworks like React JS. And with the creation of RESTful Web service.• Used Protractor to run end-to-end tests that are written in JavaScript and run with node.• Worked with Mongo DB to retrieve the data from a real-time meetup API.• Developed RESTful web services using JAX-RS implementation.• Built Micro Services architecture in AWS and created ELB'S, Auto-Scaling groups in EC2 using prebaked AMI and Docker containers.• Wrote build & deployment scripts using Maven, shell scripts to build and deploy the application in JBoss Application Server.• Involved in the JMS Connection Pool and the implementation of publish and subscribe using Spring JMS.• Extensively worked on ES6 new features such as Arrow functions, Classes, Iterators and Generators. • Extensively used SQL, PL/SQL in constructing views, indexes, stored procedures, triggers, cursors, functions, relational database models.• Developed Object-Relational (O/R) mapping using Hibernate. Developed Data Access Object (DAO) persistence layer using Hibernate.• Designed and developed Microservices business components and RESTful service endpoints using Springboot.

• Developed using new features of Java 1.5 like Annotations, Generics, enhanced for loops. • Designed and implemented Struts (MVC Paradigm) components such as Action Mapping, Action class, Dispatch action class, Action Form bean and used JavaBeans to return dynamic information. • Used Core Java Design Patterns like Singleton, Factory, MVC, Intercepting Filter, Front Controller, Business Delegate, Service Locator, Session Facade and DAO. • Worked in all the modules of the application which involved front-end presentation logic developed using Tiles, JSP, JSTL, Java-Script, XML.• Business objects were developed using POJOs and data access layer using Hibernate. • Involved in writing Thread Safe blocks for multithread access to make valid transactions. • Created and injected spring services, spring controllers and DAOs to achieve dependency injection and to wire objects of business classes. • Exposed the Web Services (REST) to the client applications by sharing the WSDL's. • Created DDL and DML SQL scripts for creation of database objects.• Created logical and physical data models putting to practice, concepts of normalization and RDBMS• Used Spring Inheritance to develop beans from already developed parent beans. • Involved in configuring Hibernate mapping files and POJO objects. • Used Hibernate Transaction Management, Hibernate Batch Transactions and Hibernate cache concepts. • Developed various generic JavaScript functions used for validations.

• Developed different page flows of service guide in Web Logic 8.1 workshop.• Developed, Deployed and maintained several apache web server applications. • Implemented and configured Single Sign-on feature to create the ability to login to one application and navigate to the other applications.• Maintained several content management operations using Documentum.• Maintained several user management activities such adding users deleting users refreshing the user data and synchronizing the user data.• Used Clear Case for version Control and source code sharing.• Experience in implementing JSR 168,286 portlets.• Interacted with back end databases like oracle and Sybase and wrote several PL/SQL procedures to generate the reports and feeds. • Designed, maintained and deployed application page flows in WebLogic 8.1 in Workshop.• Involved in UI Testing which is generally testing the graphical user interfaces, how user interacts with the application, testing application elements like fonts, layouts, buttons, images, colours etc. • Involved in preparing documentation for UI Testing.