• Involved in Requirement gathering, Design, Analysis, and Code development by following agile methodology.• Used Multi-threading for parallel calls within the application that improves the response time.• Decomposed existing monolithic code base into Spring Boot microservices. Developed new features and provided support for all Microservices.• Design and develop Spring Boot Micro Services to improve performance of application and reduced the response time of the application.• Developed Chart Web Services controllers, with generic interfaces, and default implementations, exposed as Java Spring RESTful Web services, with Chart Specific parameters passed as query string.• Design and develop Spring AOP for the application.• Developed various pages in the applications in front end technologies HTML5, CSS3-SASS, JSON, Angular 6.• Developed REST based Web Services using XML/JSON messages that were used by the front end.• Implemented Circuit Breakers to avoid overload on application when the system memory is full.• Worked with Java 8 Streams, functional interfaces and Lambda Expressions.• Extensively used Core Java such as Exceptions, I/O, Multi-Threading and Collections.• Implemented several REST Service API’s, consumed by other Services, which brings down the code redundancy.• Used SQL DB to Store and retrieve data.• Worked effectively with QA team for the test plan, test cases, test code and responsible for resolution of defects.• Used NODE JS service to deploy spring boot application Jar.• Implemented REST End-End Business Logic.• Used Micro service architecture, with Spring Boot based services interacting through a combination of REST and Apache Kafka message brokers. Produced and consumed centralized Spring Restful Web Services for Enterprise and web applications to consume in JSON format and in trusted client-server environment.

• Used Agile methodology followed by SCRUM process Sprints and daily Stand up meetings. • Involved in requirements gathering, developed the GUI, and wrote business logic code for server side and client-side implementation. • Involved in fixing the bugs at Development and production levels. • Provided support to the Clients in resolving the production tickets. • Supported the application in production and interacted with off-shore and on-site production support teams. • Maintained Interface compatibility and concurrency in the project using Java 8 new features like default, static methods and Concurrency API.• Good understanding of AWS Elastic Block Storage (EBS), various volume types and utilization of different types of EBS volumes based on requirement.• Highly used Angular 2/4 router to build single page application for navigates through the different status and multiple modals.• Implemented Java and J2EE Design patterns like Business Delegate and Data Access Object (DAO).• Configured Spring MVC Annotation to manage URL mapping with controllers for the communication between front end and middle-tier.• Worked on implementing the application framework using OOAD and Design Patterns in Java.• Developed reusable and interoperable Web service modules based on SOA architecture using SOAP and RESTFUL.• Designed, developed and maintained the data layer using Hibernate & POJO and performed configuration of spring application framework. • Extensively used XML for request and response with web service data transfer across different systems. • Designed and developed Micro services business components using Spring Boot.• Involved in implementation of enterprise integration with Web Services and Legacy Systems using REST and Soap Web services using NodeJS.• Developed Page layouts, Navigations and presented designs and concepts to the clients and the management to review.

• Involved in design and development of server side layer using Spring IOC, Spring ORM.• Configured association mappings like one-one and one-many in Hibernate. • Used Hibernate to persist the data efficiently into database and also integrated it with the Spring ORM framework.• Applied MVC design pattern using Java Beans, Swing and conducted simultaneous queries and retrievals using Java multithreading techniques.• Used Hibernate in data persistence layer to access and update information in the database.• Created New REST end points in spring boot.• Used core java multithreading concept and wrote server side programming.• Design and implementation of reusable components within the product Involved in fetching the services from third parties and integration• Performing Impact analysis, project analysis and estimations.• Participated in high-level platform design discussions.• Provided support, structure, advice and guidance to the new team members.• Used Log4J for logging and debugging of the application in an efficient manner.• Worked with NoSQL MongoDB to store, retrieve, and update and manage all the details for customer order tracking.• Administered overall activities related to Configuration Management.• Distinguished and clarified the change requirements with client team• Automate testing in-between the upstream and downstream micro services• Automation Testing and Manual Testing on Web-based applications.

• Identified the Business requirements of the project and Involved in preparing Requirements for the project.• Involved in Use Case Diagrams, Class Diagrams and Sequence diagrams using Rational Rose.• Designed and developed the UI using Struts view component HTML, CSS, JSP, JavaScript, AJAX, JSON. • Used XML/XSLT for transforming common XML format and SAML for Single Sign-On.• Designed configuration XML Schema for the application.• Used XML Http Request Object to provide asynchronous communication as part of AJAX implementation.• Extensively used MVC, Factory, Delegate and Singleton design patterns.• Spring MVC Framework IOC (Inversion of Control) design pattern is used to have relationships between application components. It is also used to separate the application configuration and dependency.• Specification from the actual application code.• Used Spring Framework for Dependency Injection and integrated it with Hibernate.• Implemented the application using Spring Framework, which is based on MVC design pattern.• Used SOAP for Web Services by exchanging XML data between applications over HTTP.• Wrote Ant Scripts to automate the build and deploy process.• Developed automated Build files using ANT.• Used Subversion for version control and log4j for logging errors.• Code Walkthrough, Test cases and Test Plans.