Harsha R Email and Phone Number

• Worked with all phases of SDLC as a scrum member following agile methodology and Test-Driven Development (TDD).• Created the front-end web pages using HTML5, CSS 3 (using SASS), media queries and JavaScript to develop the UI for our login and customer enrolment portals.• Implemented micro services-based architecture using Spring Boot interacting through REST API.• Worked with ORM frameworks such as Spring Data.• Authenticated Users accessing RESTful services using Oauth 2.0 and OIDC.• Worked with Spring Cloud and Netflix OSS-Eureka for service registration and discovery.• Used spring boot actuator to externalize application’s configuration properties for different environments.• Deployed Spring Boot based micro services on Docker containers using Amazon ECS and used Docker Hub for registering the Docker images.• Worked with AWS IAM service to create various groups and attached appropriate policy documents to the users within that group.• Developed and maintained complex React applications using best practices such as component-based architecture, state management, and testing.• Responsible for improving the performance of the React applications using lazy loading techniques, setting up web workers.• Designed, built, and deployed a multitude application utilizing almost all the AWS stack (Including EC2,MongoDB, Docker) focusing on high-availability, fault tolerance, and auto-scaling).• Proficient in deploying and configuring Elastic search, Log Stash, Kibana (ELK) and AWS Kinesis for log analytics• Used the fundamentals of Java 8 like parallel streams and filters through lambda expressions to handle thesearching.• Used the Java Collections API extensively in the application as security protection for XML, SOAP, REST and JSON to make a secure Web Deployment.• Developed the application using industry standard design patterns like Singleton, Business

• Used Agile-scrum Software Development for developing the application. Involved in user requirement specification and preparing requirements documents and translated business rules into business component modules. • Designed User Interfaces using JSP, Servlets, Angular 6, HTML, CSS, JavaScript and Bootstrap.• Extensively worked with consuming the REST services in the front-end using Angular 6.• Followed design patterns like Singleton, Factory for better design and implementation.• Design and implement web services using REST Web services using JSON formatting.• Developing the Microservices using Spring Boot that create, update, delete and get the assignment information from backend.• Implemented MVC architectural design pattern using Spring MVC module.• Implemented the application using the concrete principles laid down by several Java/JEE Design patterns like MVC, Singleton, and Data Transfer Object (DTO). • Worked on React JS virtual Dom and React Views, rendering using components which contains additional components called custom HTML tags.• Responsible for React UI and architecture. Building components library, including Tree, Slide-View and Table Grid.• Implemented service layer using Spring IOC and annotations and Controllers using Spring MVC.• Created Services to consume REST API's and to communicate between components using Dependency Injection provided by Angular JS.• Worked with Threads, Multithreading, Synchronization and Collection API.• Developed server-side application to interact with database using Spring Boot and JPA.

• Developed the single-page application following Agile Scrum, participated in daily standups, sprint reviews, Kick-offs, and used Jira for project management.• Involved in Software Development Life Cycle for gathering requirements, Analysing, Designing, Developing, and Testing applications using Agile methodology. • The application is built in Micro Service Oriented Architecture using MEAN 4+ (Mongo, Express Angular 8.0 and Node) stack and developed Single Page Applications (SPA).• Developed multiple Angular 11.0 components that are compatible with the latest versions of typescript, angular CLI.• Designed the user interface screen and its functionality as per user requirements and developed RESTful Web services in Mule ESB based on Service Oriented Architecture (SOA).• Used different transformers, exception handling, testing & Security of MuleSoft ESB endpoint through OAuth. • Designed and developed efficient user Interaction screens using HTML5, CSS3-SASS, and Twitter Bootstrap CSS framework and media queries to create responsive web pages.• Created dynamic schema design through NoSQL MongoDB by writing rich queries and achieved data in a collection to be distributed across multiple systems for horizontal scalability as data volumes increase through Sharding.• Implemented Java11 features like Lambda expressions, Streams, filters, pipelines, Optional Interfaces, etc.• Expertise in using ODM frameworks to connect asynchronous environments with Mongoose Connector and Cassandra Node Driver.• Worked with KAFKA Zookeeper for managing the cluster with broker/cluster technology.

• Used Structs Framework in the application, which is based on MVC design pattern. • Used Struts Model-View-Controller approach to help design new features and fix Jira bugs and request. • Developed Rest Web services for IOS and Android mobile websites and apps. • Involved in integrating JAX-RS into Spring Boot application. • Implemented Micro Services using Spring Boot, Spring Cloud and Spring Micro Services and enabled discovery using Netflix Eureka Server. • Involved in writing Spring Configuration XML, file that contains declarations and business classes are wired-up to the frontend managed beans using Spring IOC pattern. • Implemented the application using Spring IOC, Spring MVC Framework, and Spring Batch and handled the security using Spring Security. • Worked on developing web service calls using SOAP and WSDL. • Having good experience in implementing the Node.js server-side code to interact with MongoDB to store and retrieve data by using the Mongoose drivers. • Involved in installing, upgrading, configuring, and Troubleshooting IBM Web Sphere Application Server and IBM MQ on AIX and Linux • Used Web Services for transmission of large blocks of XML data using SOAP. • Tested the application functionality with JUnit Structs Test Cases.

• Developed API for using AWS Lambda to manage the servers and run the code in the AWS.• Develop the Responsive Web/Mobile Application using Front-End User Interface - UI Technologies like HTML5, Object Oriented JavaScript, JSON, JQUERY, CSS3.• Worked on Lambda Expressions, Functional interfaces Stream API's, Time API, and Improvements on Collection, Concurrency, and IO improvements by using Java 8.• Experience in Docker Engine and Docker Machine environment, to deploy micro services-oriented environments for scalable applications.• Extensively worked in writing minimal code in building re-usable forms with their validations using REACT with Redux Architecture.• Created AWS EC2 instances and installed required configurations and applications on it and created S3 buckets for storing object level data into it.• Made use of React JS to build Bootstrap components for responsive UI objects and linked with API data to view and render the virtual DOM dynamically.• Web pack module bundler and Babel JavaScript compiler are used accompanying React JS.• Optimized cleaning up of session-level Data Structure's shared across different open tabs when data is flushed/committed from one of the tabs.• Worked with container-based application deployments using Docker with Kubernetes.

• Analysed the requirements of the client and developed detailed design documents. • Designed UML Class Diagrams and Use Case Diagrams to understand the code easily. Developed UML using Microsoft Visio. • Used multi-threading to overcome the errors in the process of transactions, to handle all the threads by the main thread process. • Designed the application by implementing JSF Framework based on MVC Architecture with EJB, simple Java Beans as a Model, JSP and JSF UI Components as View and Faces Servlet as a Controller.• Involved in designing and developing dynamic web pages using HTML and JSP with Struts tag libraries. • Created Web Services to existing business logic that integrates with JSF.• Developed the Server-Side components using EJB. • Used Struts, which is an open source MVC framework for creating elegant, modern java web applications.• Designed and developed the front-end using HTML and JSP. • Experience on backend using collections, Struts, maps, DHTML, IDE & Tool Eclipse, and Notepad++.• Developed XML files, DTDs, Schema's and parsing XML by using both SAX and DOM parser. • Developed JavaScript for Client-Side validations. • Developed Application that access database (MySQL) using JDBC calls.