Karan S Email & Phone Number

Atlanta, Ga, Us

New York, Ny, Us

● Involved in Software Development Life Cycle for gathering requirements, Analyzing, 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).● Responsible for implementing Map Reduce programs into Spark transformations using Spark and Scala.● Developed multiple Angular 11.0 components that are compatible with the latest versions of typescript, angular CLI.● Developed the single-page application following Agile Scrum, participated in daily standups, sprint reviews, Kickoffs, and used Jira for project management.● 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.● Hands-on experience 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.● Configured JBOSS Application server and used Oracle database with Hibernate ORM framework and used the functionalities of Hibernates second level Ehcache.

Dublin , Ca, Us

● Extensively worked in writing minimal code in building re-usable forms with their validations using REACT with Redux Architecture.● Good knowledge of Lambda expressions, Time APIs, and Java 8 core features● Optimized cleaning up of session-level Data Structure's shared across different open tabs when data is flushed/committed from one of the tabs.● Implemented Struts encouraging application architectures based on the Model View Controller (MVC) design pattern and Struts 2 framework for front-end development and presentation logic.● Used Spark-SQL to Load into Hive tables and written queries to fetch data from these tables.● Developed JavaScript for all client-side validations and developed GUI using CSS, JSTL, and XSL.● Apply focused development changes across oracle databases and see the changes applied through the life cycle of environments and testing into production via internal deployment tool. 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.● Responsible for the overall layout design and prototype using React JS with Redux library, jQuery UI, and CSS/Less and HTML5.● Implemented Node JS as a server-side proxy for an event-driven, non-blocking I/O model to make the application lightweight and efficient.● Define requirements and specifications for Development using Oracle R12, Oracle Forms, Oracle Reports and SQL.● Web pack module bundler and Babel JavaScript compiler are used accompanying React JS.● Implemented Spring Boot to create a CRUD back-end for our React-frontend application.● Worked with Jenkins Continuous Integration and Continuous Deployment (CI/CD).● Experience in Docker Engine and Docker Machine environment, to deploy the micro services-oriented environments for scalable applications.● JUnit is implemented along with Mokito to perform unit testing on our RESTful web application.

San Francisco, California, Us

● Used HTML5, CSS, jQuery, Ajax and performed client-side validations using JavaScript.● Implemented web interface (UI) for end-users using AngularJS, which has migrated from the existing BackBone JS application.● 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).● Effectively used Angular Directives, filters, declarative templates, service providers, and context-aware communication.● Developed a set of application functionality using CRUD (Create, read, update, delete) features of Backbone.js.● Performed AngularJS end-to-end testing using the Protractor framework.● Used backbone.js as Model, Widgets as Controller, and jQuery template as view. ● Developed application on Spring framework by utilizing its features like Spring Dependency injection, Spring Beans, Spring Security, Spring JPA, Spring Web flow using MVC● Worked on Spring Framework handling major concepts like Dependency Injections, Spring IoC Containers, Transaction Management Declaratives (annotations based).● Deployed the drools rules as a service in the J2EE stack environment.● Wrote SQL Queries, PL/SQL stored procedures, triggers, packages on Oracle database. ● HibernateORM framework is used to interact with databases through Hibernate query language (HQL). And also worked with the Hibernate EH Cache technique for the critical objects in the application.● Used Backbone JS to utilize its rendering functions and create controllers to handle events triggered by clients and send requests to the server.● Developed an automated application using JMS for messaging and JNDI to interact with the server. ● Configured and managed public/private cloud infrastructure utilizing Amazon Web Services like Amazon Ec2, Amazon S3.● Configured Jenkins to handle application deployment in the Pivotal Cloud Foundry (PCF) server and integrate with GitHub version control.

Dallas, Tx, Us

● 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).● Effectively worked on Angular 1.0 to use the enhanced features of typescript, Angular Routers, and Angular Components.● Effectively used Angular Directives, filters, declarative templates, service providers, and context-aware communication.● Worked on Agile methodology, including team-based design and code reviews.● Worked with Ember JS to code some new functionality and developed application front end using HTML, CSS, Ajax. ● Spring AOP is used for logging, auditing, and security and transaction management to distinguish business logic from the cross-cutting concerns.● Implemented the back-end functionality of the modules using Singleton and Session Facade design patterns.● Implemented Spring Batch to run daily and monthly batches. ● Extensively used Java server Faces (JSF) Navigation rules and JSF tags for enhanced user Interface.● Involved in multi-tiered J2EE design utilizing Spring Inversion of Control (IOC) architecture and Spring JPA.● Designing new components to fit in the already existing architecture using core Java, multithreading, design patterns like the factory method, Abstract factory pattern, Singleton, while developing web-based applications using REST Web Services.● Hibernate ORM framework is used to interact with databases through Hibernate query language (HQL).● Used SOA, UDDI lookups, and Web Services Description Language (WSDL) using the SOAP protocol.● Involved in the Development of SOAP Web Services using Apache Axis to extract client-related data from databases.● Developed the business logic code in Core Java/J2EE, Struts, JDBC. ● Deployed application using Oracle Weblogic Server. ● Deployed the application using Docker and AWSConsole services.● Provided support to the testing team and involved in the Bug Fixing.

Pleasanton, Ca, Us

● Implemented responsive web-based applications using HTML5, CSS3, Javascript, Jquery.● Developed SCM by using the JSP/HTML for each user interface. Servlets standard validations are used as the controllers for business logic and using JDBC, XML parsing techniques using MVC.● Designed a mailing application to send notifications to the Oracle users for intimating to start the following workflow.● Used Multithreading concept to post data from files to tables involving the transformation of files from one format to another.● Configured Struts-config.xml, Tiles-def.xml, and various properties files provided by Struts Framework for the implementation module.● Extensively used the Struts tag libraries (Bean Tags, Logic Tags, HTML Tags, etc.) and Custom tag libraries.● Developed web applications using Struts, Spring, and iBatis framework. ● Experience in installing, configuring, and deploying applications on Web Logic Server. ● Developed a DAO pattern to retrieve the data from the database.● We kept up the bean life cycle by utilizing Spring IOC, which keeps session information about beans.● Worked with Log4J to capture the log that includes runtime exceptions● Implemented IBM WebSphere Application Server to deploy the application● Deployed application on the Client Linux server.● Used ANT build tool for compiling and generating war files.Environment: Core Java, J2EE, JSP, HTML, MVC, Servlets, Struts, JMS, MDB, EJB3.1, JUnit, PL/SQL, DAO, Web Logic Server, Ant, SOAP, JAX-WS, WSDL, Junit, SQL.