Worked as Java Engineer where I developed Hibernate mapping files using different mapping strategies such as table per class hierarchy and used Hibernate Persistence Strategy to interact with database and in front-end, I used to develop a cross-browser platform using HTML5, CSS, and JavaScript to match design specs for complex page layouts while adhering to code standards. Created automated pipelines in AWS Code Pipeline to deploy Docker containers in AWS ECS using services like CloudFormation, CodeBuild, CodeDeploy, S3 and puppet. Developed a tool to retrieve and send data to third party service provider this feature was implemented using REST.Involved in spring programmatic transaction management using AOP and using Spring Batch. Used Spring Core to define beans for Services, Entity services and corresponding depended services.Integrated services like GitHub, AWS Code Pipeline, Jenkins, and AWS Elastic Beanstalk to create a deployment pipeline. Configured AWS Multi Factor Authentication in IAM to implement 2 step authentication of user's access using Google Authenticator and AWS Virtual MFA.Developed Hibernate persistence layer modules using EJB Java Persistence API (JPA) annotations and Entity Manager. Migrated eCommerce applications to JBoss and code changes to remove WebLogic specific EJB related dependencies. Configurated and deployed application on to JBoss application server.Designed dynamic client-side JavaScript codes to build web forms and simulate process for web application, page navigation and form validation. Developed user interfaces using JSP, JSF framework with AJAX, Java Script, HTML, DHTML, and CSS.Utilized Java 8 features like Lambda expressions and Stream API for Bulk data operations on Collections which would increase the performance of the Application. Created web services, WSDL and web methods with Annotation in hibernate, Used the spring container for data source and to load the Hibernate specific classes.

Worked as a Full Stack Developer where in backend I Implemented Spring AOP for admin services and used the lightweight container of the Spring Framework to provide architectural flexibility for inversion of controller (IOC). I’ve also created the JDBC data source in WebLogic Application Server. Wrote client side WS-Handlers and Log Handlers to pass request context (Username, password, Applicant ID, Person no.) to the server-side web service. Designed and Implemented Database of backend logic in DAO classes & iBatis SQL mapping and configured Struts and Hibernate framework with Spring MVC.Worked on configuration and deployment of tomcat application and web apache servers, Redis Cache. Environments for test, development and production were built from the ground up.Worked on AWS cloud service like Compute, Network, Storage, and Identity & access management. Developed and modified triggers, packages, functions and stored procedures for data conversions and PL/SQL procedures to create database objects dynamically based on user inputs.Involved in SDLC development involving Requirements gathering, Analysis, Design, Implementation, testing of application using Agile Methodologies, and estimate the efforts required in Windows, Linux/Unix environments.Deployed the application in WebSphere Application Server 6.0.1 and Configured JMS in the WebSphere application server to send messages on the queue.Involved with bug fixing on functionality, performance and designing issues with JavaScript, jQuery, HTML5, CSS3 and AngularJS.Used the XML SQL Oracle (Extract, ExistsNode, ExtractValue, XMLSequence, AppendChildXML) functions to generate, insert and manipulate XML files in Oracle 11g XML-DB and performed web Page Applications using Angular JS with other development teams. Used Kubernetes to orchestrate the deployment, scaling and management of Docker Containers. Also maintained Docker Images and containers.

Worked as a Java Developer where I designed and managed API system deployment using fast http server and Amazon AWS architecture and implemented CI/CD pipelines using Jenkins and automated CI/CD pipelines by invoking Ansible playbooks. Deployed a multitude of Cloud services on AWS stack such as EC2, Route53, S3, RDS, Dynamo DB, SNS, SQS, IAM, while focusing on high-availability, fault tolerance, and auto-scaling in AWS CloudFormation. Designed and documented REST/HTTPAPIs, including JSON data formats and API versioning strategy.Integrated Amazon Web Services (AWS) with other applications infrastructure. Utilized Kubernetes for the runtime environment of the CI/CD system to build, test deploy. Designed and implemented a continuous build-test-deployment (CI/CD) system with multiple component pipelines using Jenkins to support weekly releases and out-of-cycle releases based on business needs.Used Amazon Cloud Watch to monitor AWS services and Amazon Cloud Watch logs to monitor application.Implemented Object-relation mapping in the persistence layer using hibernate (ORM) framework. Extensively used DAO patterns, including mapping DAO objects, configure file and classes to interact with database. Worked on Java API to interact with the Amazon SQS used in sending bulk emails.Generated JSON format data packets from middle-tire controller to front-end using Jackson JSON API. Developed a Custom Package which parses and compares fields from a xml using DBMS_XMLDOM package.Developed new user -facing features using React.JS. Involved in multi-tier Java and J2EE based applications support, responsible for writing business logic using core Java, PL/SQL queries for the backend RDBMS.Built application using MAVEN and used Log4J to generate log files for the application. used Cloud formation templates (CFT) to find the resources that needed for the formation of cloud formation stacks.