 Used Java/J2EE Design Patterns like DAO, MVC and Singleton in the project extensively, which facilitates clean distribution of roles and responsibilities across various level of processing. Implemented REST Microservices using spring boot. Generated Metrics with method level granularity and Persistence using Spring AOP and Spring Actuator. Used MySQL database for storing webpage information. Stored static files using AWS S3. Used JIRA to assign, track, report and audit the issues in application and setup the continuous integration (CI) process for the application using Jenkins. Wrote API documentation using Swagger. Used Log4j to capture the logs that includes runtime exception and for logging info and helpful in debugging the issues.

 Implemented RESTful microservices for creating, updating and deleting user accounts, and for authorization and authentication of user login. New library development with micro services architecture using Rest APIs, spring boot and pivotal cloud foundry. Created POC of Authentication and Authorization with Oauth2 Spring Boot microservice. Utilized JWT as tokenization scheme for Oauth2. Worked on MongoDB database concepts such as locking, transactions, indexes, sharding, replication and schema design. Worked with huge reporting collections to wipe out aged data based on requirements. Worked on creating different type of indexes based on different collections to get good performance in MongoDB. Used Maven as dependency management and build tool. Used Atlassian Bamboo for continuous integration and build, and Jenkins for deployment. Wrote Unix commends with PuTTY to access remote server. Worked on debugging and bug fixing with IntelliJ. Modified CSS and Layout of the existing flows as per the business requirements. Created JUnit test cases with Mockito framework for unit testing. Worked with QA team for integration. Used Confluence for documentation of important process and information storage. Used Stash (enterprise version of Git) and its GUI tool SourceTree for version control. Playing key role in Agile environment. Participated in daily Scrum standup meeting and weekly agile iteration planning meeting (IPM).

 Used the light weight container of the Spring Boot to provide Scalability and high availability for backend instances using AWS ELB. Implemented auto pay functionality by scheduling task using Spring Batch. Involved in development of RESTful web services for KYC and pre-authorized Transfers. Developed REST API for token-based authentication for REST services using Spring Security.  Created payment micro service an integrating it with core payment module to transfer the payment. Involved in implementing DAO pattern for database connectivity and Hibernate 5 for object persistence. Developed UI layer components and pages using HTML5, CSS, JavaScript, JSTL and JSP, AngularJS. Docker is used to create images and run the application as a container. Used JUnit framework for unit testing of application and Log4j 1.2 to capture the log that includes runtime exceptions. Worked on tools like JIRA for bug tracking, Git Hub for version control.

Participated in all stages of software development Life Cycle which is Requirements Gathering, SystemAnalysis, System Design, Development, Unit Testing Performance testing and Production Support. Extensively implemented presentation layer, controller layer, service layer, and DAO layer using Spring and Hibernate frameworks. Fixed major bug issues present in the application. Worked in Agile software development methodology. Implemented business logic with POJO using multithreading and design patterns. Designed Database tables, SQLs, stored procedures, triggers. Designed mapping between relationaldatabase tables and object oriented Java objects using Hibernate. Unit testing with JUnit. Provide support to production deployment team to deploy the application in production environment.

• Developed Spring Controllers, Service Components, DAOs.• Implemented J2EE standards, MVC architecture using spring Framework.• Implemented Servlets, JSP, jQuery and JavaScript to design the user interface.• Implemented Spring (MVC) to dispatch the requests to handlers.• Used Hibernate ORM to access the data from relational databases to map POJO objects.• Generated the pdf reports for the Equipment’s and Alarms based on the time for the given data using Jasper Reports.• Used Maven Scripts to build and deploy applications and worked closely with build team to resolve Issues.• Unit Testing Java code using JUnit;• Involved in testing and deployment of the application on Tomcat Server during integration and QA testing phase.