• Involved in various phases of Software Development Life Cycle (SDLC).• Used Agile methodology and attended daily and weekly SCRUM meetings to update working status etc.• Extensively used core Java Collections, Generics, Exception Handling, and Design Patterns for functionality Involved in writing different Design Patterns like Filter, Action, Business Delegate, Service Locater, Data Transfer Objects (DTOs) and Data Access Objects (DAOs)• Involved in migrating the Database from Oracle to PostgreSQL.• Built microservices with Spring Boot to serve multiple applications across the organization. The data is provided & consumed in JSON• Created Hibernate mappings and debug issues related to data integrity• Developed Microservices using Spring MVC, Spring Boot, Spring Cloud. • Involved in writing and executing stored procedures, functions and triggers for PostgreSQL to create a Database • Used JDBC/Hibernate in persistence layer of the application. • Used WebSphere Application Server for deploying various components of application. • Persistence layer was implemented using Hibernate Framework.• Used a Microservices architecture, with Spring Boot-based services interacting through a combination of REST and Spring Boot. • Spring Boot Microservices were developed with microservice architecture using REST and Apache Kafka• Deployed Docker contained Spring boot micro services into Spring EC2 container service using AWS admin console• Experience with building Docker Images and running them on Docker container.• Kubernetes is configured in the application for automating deployment, scaling, and management of containerized applications. • Used Maven for build and deployment to Tomcat server and Splunk as log monitoring.• Developed Ansible to manage Web applications, Environments configuration, Users, Mount points and Packages. • Used Git for version control and JIRA for bug Tracking and Project Management.

• Participated in all phases of the Software Development Life Cycle including design, development, testing, and deployment of various web applications.• Worked on defining new validations using React.js for validation of the form field and implemented them using HTML.• Developed and Customized the User Interface to show reports in various dimensions by creating web applications using HTML, CSS, and React.js.• Built Java-based applications using JDK and create the packages for running the single-page web applications.• Worked on developing a User Interface with React.js using sorting, filtering, pagination, and rendering operations in the web pages.• Worked on implementing Model View Controller architecture using Spring MVC framework to isolate each layer of the application for less complexity in integration and easy maintenance.• Designed and developed using the Java collection API with Java 8 features and for Authentication and authorization extensive Spring Security.• Implemented the Spring Boot services along with React.js to form a Microservice oriented application and split the application into sub-modules.

• Worked on the development of the applications following Agile/Scrum methodology and designing, deployment, and designing and operating highly available, scalable, and fault-tolerant systems using Amazon Web Services.• Involved in multi-tiered J2EE design utilizing Spring Inversion of Control (IoC) and hibernate.• Worked with Hibernate for object-relational mapping solution, the technique of mapping data representation from MVC model to Oracle Relational data model with an SQL-based schema and built using Model-View-Controller (MVC) architecture. • Implemented the application using the concrete principles laid down by several design patterns such as DTO, Intercepting Filters, Singleton, and Data Access Object.• Worked on upgrading the Mongo DB and used Spring Data Mongo DB as the persistence framework in retrieving the user and financial benefits details from Mongo DB.• Worked with AWS cloud service in creating EC2 instances and providing them roles and sometimes participated in writing custom policies and deployed applications on Elastic Bean Stalk and EC2.• Worked on implementation of JAX-RS and provided portable APIs for RESTful web services.• Designed and implemented applications using JSP, Spring MVC, Spring IOC, Spring Annotations, Spring Transactions, JDBC, SQL, ANT, and Oracle.

• Involved in analysis, specification, design, implementation, and testing phases of Software Development Life Cycle (SDLC) and used Agile methodology (SCRUM) for developing applications.• Designed, and developed a custom, single-page, responsive web application on the front-end using AngularJS.• Developed reusable components using JavaScript, XML, and HTML.• Working as an application developer experienced with controllers, views, and models in BackboneJS.• Developed forms for user event handling and validations using JavaScript and AJAX and upgraded existing UI with HTML, CSS, jQuery, and Bootstrap.• Worked with the installation of the application on AWS EC2 instances and configured the storage on S3 buckets.• Installed and configuration of Kubernetes, clustering them, managed local deployments in Kubernetes, and used ECS for running Docker images on a scalable platform.• Developed user interface by using Angular for Single page application development. • Involved in responsive design and developed a single responsive website that could be served to desktop, Tablets, and mobile users using Angular.• Built code using IDE IntelliJ and deploy it using Apache Tomcat and used Node.js as a proxy to interact with RESTful services.

• Responsible for all stages of design, development, and deployment of applications. Active role in Test Driven Development termed as TDD apart from Waterfall Software Development.• Implemented User Interface scaling itself depending on the device, platform, and browser using HTML, CSS, Bootstrap, and Performed client-side validations using JavaScript.• Implemented RESTful and SOAP-based web services and used Soap UI for testing.• Strong knowledge in developing Web Services using SOA, SOAP, WSDL, and XML.• Performed unit testing with JUnit and used Mocha and Chai for JavaScript framework and Cypress for e2e testing.• Used Oracle SQL Developer for Oracle for running queries to confirm the results from the application.• Involved in writing SQL queries and stored procedures for the application in Oracle.• Worked on automation and build process through Gradle Script build framework.• Used Spring Security to provide JWT-based authentication, authorization, and access-control features for the application.

• Responsible for gathering new Business Requirements of the system from the client.• Worked on planning and monitoring the projects using the Agile methodology and documented the executed results following this methodology.• Designed UI Screens using JavaScript, CSS, JSON, jQuery, Ajax, Servlets, and HTML.• Worked on converting the data into JSON using the JSP tags and validated the page data in the JSP pages using JavaScript.• Worked on designing, coding, and developing the application in J2EE using Struts MVC.• Extensively used Core Java such as Multi-Threading, Exceptions, and Collections in the application. Designed, developed, and maintained the data layer using the ORM framework in Hibernate.