SUMMARY

• Around 9 years of full stack development experience in all stages of life cycle, referring toDesign, Development, Implementationandtestingofweb based applications.
• Expertise in designing and developing server - client and web based applications inJava/J2EEtechnology using Object Oriented Technology.
• Experience in DevelopingUser Interface (UI) Rich Web Applicationsusing Front End/User Interface (UI) Technologies usingHTML5, DHTML, CSS3 (SaaS, LESS) frameworks, Bootstrap, Java script (ES5 & ES6), jQuery, AJAXby managing all facets and pipelines of application.
• Good Understanding on using variousXML technologieslikeXPath, XQuery, XSLT, XSD, SAX, DTD/Schemas, DOM and JAXB.
• Worked withReact.js Virtual DOMandReact views, rendering using components.
• Implemented various screens for the front end usingReact.jsand various predefined components fromNPM (Node Package Manager), bower and redux library for Dependency management.
• Strong Experience inJavaScript MVCdesign pattern such asAngular JS, Backbone JS and
• Ember JS, Knockout.js.
• Having good Experience inMVVMdesign pattern such asAngular 2.X and Angular 4.X.
• Developed multipleAngular 4.0 componentswhich are compatible with latest versions oftypescript, Angular CLI.
• Strong experience in developingSingle Page Application (SPA), using MEAN (Mongo, Express, Angular and Node) stack.
• Hands on experience in developingserver - side JavaScript frameworksusingNode JS (Hapi JS, Express JS)to build event driven, non-blocking I/O modelweb applications.
• Hands on Experience withbuild toolsastask runner using Gruntjs, Gulp Server, Yeomanto perform repetitive tasks ofModification, compilation, Unit testing.
• Proficient in working with web application'sUI testing frameworkssuch asKarma, Jasmine, and Protractor for Angular JS, Mocha and Chai for React JS and Backbone JS.
• Good understandingCore Java SE 8concepts likeStreams API, Time API, Functional Interfaces, Multithreading, Transaction Management, Exception Handling, and Lambda functions, Generics and Collection API.
• Acquainted in programming skills with an experience of developing an n-tier applications, and enterprise applications using technologies likeJAVA, J2EE, spring, Servlets, JSP, JDBC,MongoDB, and Oraclewhich makes aclear differentiation between layers.
• Good programming knowledge usingJava1.7/1.6,Spring 3.x, Spring MVC, Hibernate 3.2, JPA 2, Servlet, Struts 2, Java Beans, JDBC, JTA, JSP.
• Adept in designing and developingspring,Struts,MVC, Java/J2EEbased framework.
• Good knowledge on working withRelational database ORM frameworks like PostgreSQL, MySQL, DB2, Oracle 13c/11g, Ibatis and NoSQL DB (Mongo DB and Cassandra, Couch DB, Redis, Dynamo DB).
• Expertise to interact withORM frameworkslikeHibernate, Spring Data, iBatis and JPA.
• Experience onNoSQL based ORM frameworkslikeMongoose Connector and Cassandra Node Driver.
• Experience in developingenterprise applicationsusingframeworkslikespring, Struts, Servlets, JSF (Prime Faces).
• Proficient in implementation ofspring frameworkslikeSpring MVC, Spring IOC, Spring REST, Spring AOP, Spring transaction Management, Spring Data, Spring DAO, Spring Batch, Spring Security and Spring Boot.
• Worked onmicro servicesbased architecture usingSpring Boot interactingthroughREST API.
• Worked withWSDL in implementing SOAP services using Axis-2 and Apache CXF Framework.
• Worked on projects implementingRESTful services (JAX-RS, Spring Boot), SOAP (JAX-WS, Apache CXF, WSDL, Apache Axis2) and configured using Swagger and WADL.
• Hands on experience withdesign patternslikeMVC, Business Object, Value Object, Singleton, Factory Pattern, Business Delegate, Session Facade, Service locator, Front Controller and DAO pattern.
• Authenticated Users accessingRESTful services using Oauth 2.0, OID, OIDC and JWT (Jason Web token).
• Integrated security functionality usingspring securityandSite minder (SSO).
• Good knowledge onDrools Rule Engineswhich corresponds to validatingBRMS (Business Rules Management System).
• Experience in usingconfiguration managementtools likePuppet, Chef and Docker.
• Experience inmessaging queue serviceslikeIBM MQ. Rabbit MQ, Active MQ and Apache Kafka.
• Experience withbuild toolslikeAnt, Maven, and Gradle for building and deploying applicationsto different environments.
• Experience withUNIX and Shell scripting.
• Solid experiencein Apache Subversion(SVN) andJenkinsandBambooContinuous Integration Server.Integration testingof the applications usingSeleniumandbehavioural testingusingCucumber.
• Implemented Test Driven Environment (TDD) UsedJUnit, Mockito, and Sonar for Unit testing.
• ImplementedSpring Cloud-Netflix OSS Stackalong with usingRibbonfor client-side load balancing,Netflix Zuul API GatewaywithEureka service registryfor reverse proxy infrastructure andHystrix Circuit Breakerfor fault tolerance.
• Designed and created highly scalable, highly available, fault tolerant, highly secured, distributed infrastructure (IAAS) usingAWS EC2 instances, S3, EBS, ELB, API Gateway, Route 53, Cloud Front, Auto Scaling, Elastic Bean Stalk, VPC, Cloud Watch, Cloud Trial, RDS, SNS, SQS.

TECHNICAL SKILLS

Programming Languages: C, C++, Java (J2SE, J2EE1.6/1.5), Core Java, SQL, PL/SQL, UML2.0

Web Technologies: J2EE, Servlets 2.4/2.5, JSP 2.0/2.1, JSTL, JDBC 2.0/3.0, Filters, Listeners

Frontend Technologies: HTML4/5, XML, Java Script v1.8, TLD, CSS, JQUERY, AJAX, BackboneJS, AngularJS2, NodeJS, Ember JS, JSON, React JS, Typescript.

J2EE Technologies: JSP, JDBC, JNDI, Web Services, BPM - Activiti, Hibernate

Tools: Photoshop, Illustrator, InDesign, Fiddler, Firebug, Maven, ANT

Web/Application Servers: WebLogic 7.0/8.1/9.0/10.0 , IBM WebSphere 4.0/5.5, JBoss 4.0.5, Apache Tomcat 5.5/6.0

Software Development: Waterfall Model, V-model, RUP, Agile, Scrum, Test Driven Development (TDD)

Web services: Soap UI, WSDL, RESTful

Version controllers: SVN, CVS, Clear Case, GIT

Testing: Junit 4.1.2, JUnit-Perf, JMock, Cactus, Jasmine, Karma

XML Technologies: XML, XSL, XSLT, DOM, and JAXB

Databases: Oracle 8i/9i/10g, MySQL 4.x/5.

PROFESSIONAL EXPERIENCE

Java Full Stack Developer

Confidential, Chicago IL

Responsibilities:

• Participated inAgile (Scrum) methodologyand Involved inDesign, development, System testing and User Acceptance Testing.
• The application is based onMicro Service Oriented ArchitectureusingAngular 4.0andCassandra DB and MySQLto developSingle Page Applications (SPA).
• ImplementedAngular 4.0 directives, expressions, routing capabilitiesforbookmarking,filters, validationsandAngular UI components, Components, ng-Modules, Providers, Servicesandclassesfornavigationrespectively.
• Worked withAngular CLIandTypescriptinAngular 4.0to createControllersandAngular componentsfor the Web Pages.
• Optimized performanceis achieved byAngular 4 Lazy Loading.
• UsedSpring Bootwhich is radically faster in building cloudMicro Servicesand develop Spring based application with very less configuration.
• Extensively usedReact-RoutertechniquesAxios serviceto retrieve data from server synchronously.
• Involved to implement various screens for the front end usingReact.jsand used various predefined components fromNPM (Node Package Manager)andredux library.
• ImplementedElastic Searchfor caching to enhance the performance of application.
• ImplementedNode JSas a server-side proxy for an observing various response time.
• Implemented modules intoNode JStointegratewithdesigns and requirements.
• UsedNode Package Manager (NPM)to manage modules & used it to install useful tools asGrunt and Express.
• UsedExpress JSwhich is fast, assertive, essential and moderate web framework ofNode.jsthat helps manage aseverandroutes.
• Worked withExpress JSwhich givesMVC Structureto theNode JS.
• Built-inAJAX HTTP Servicewith observables is used extensively for making quick andincremental updates to UIof the application.
• Applied to thebusiness modules integrationusingSpring Boot,Cassandra DB.
• Worked withCassandra Node Connectorfor database persistence to interact with Cassandra.
• Worked in integratingJMSwithSPRING BOOTby providing an instance which is embed withActive MQ.
• ImplementedSpring Netflix Zuul API gatewayandEureka service registryforreverse proxy of API’s.
• Deployed frontend application usingAWS S3andconfigured CORSto consumeRESTful servicesfrom another domain.
• DeployedSpring Boot based micro servicesonDocker containersusingAmazon ECS.
• Experience in introducingDockerutilizing Docker tool compartment. Condition provisioning arrangementsutilizing Docker.
• Authenticating Users and to provide the security toRestful web servicesusingOAUTH 2.0.
• UsingSwagger Framework, actualizing theRestful APIandSwaggergives the rich UI to test API.
• Worked on unit test cases usingKarmaandJasmineon client side.
• Wrote comprehensive Unit test cases usingJUnitandSpock.
• Load data from various data sources into HDFS usingKafka.
• Worked with the configured and maintainedJenkinsto implement theCI/CDprocess.
• Created splunk dashboards to highlights key business metrics such as transaction volume and average processing time as well as to measure the performance of the third party systems.

Environment: Angular 4.0, Node JS, HTML5, CSS3-SASS, Twitter Bootstrap4.0, ES6 JavaScript, React-Axios, AJAX HTTP Service, Typescript, Spring boot, JPA, jQuery, OAuth2.0, Apache Kafka, Active MQ, Jenkins, Bamboo, Log4j, MY SQL, CassandraDB, Elastic search, Redis, NPM, Web pack, RESTful, EC2, AWS S3, EBS, Elastic Load Balancer, Junit4, Docker, Spock, Karma, Jasmine, Eclipse Java EE IDE.

Java Full Stack Developer

Confidential, Pennsylvania

Responsibilities:

• Developed aMicro Service Oriented applicationwithReact JSin the front end andSpring Boot services.
• Developed and implemented views usingHTML5, CSS3/LESS,Bootstrap 4.0,AJAX.
• Worked on responsive design and developed a singleISOMORPHIC responsive websitethat could be served to desktop, Tablets and mobile users usingReact.js.
• Worked withReact JSto build Bootstrap components for responsive UI Objects and linked with API data to view render the virtual DOM dynamically.
• Implemented various screens for the front end usingReact.jsand used various predefined components fromNPM (Node Package Manager)andredux library.
• Used ReactRouterto create aSingle Page Application(SPA) which can bind data to specific views and synchronize data with server.
• Implementedflux patternby usingredux frameworkas a core dependency.
• UsedRedux Framework architecture(likeReducers, Containers, Saga) for integrating the data with React-Native Application and created and usedReducersto modifyStoreState Tree.
• Pleasant Experience inReact.jsfor creating interactive UI'susing One-way data flow, Virtual DOM, JSX, React Native concepts.
• InjectedAngular4built-in http service to custom services to communicate with backend with RESTful APIs and UsedPipesto format and sort data displayed in the templates.
• UsedAngular CLIto generate components, services, and filters and compiled in different environments.
• UsedAxios AJAX requestto retrieve data from server simultaneously.
• Performed Unit testing on applications using toolsMochaandChaito testReact JScomponents.
• Used the fundamentals ofJava 8like parallel streams and filters throughlambda expressionsto handle the searching.
• DevelopedRestfulweb services usingJAX-RSinJERSYto expose the data to Spring module.
• Used completeannotation drivenapproach to develop the application usingSpring Bootand was also involved in setting up thespring bean profiling.
• Developed and deployedMicro Servicesbased applications usingSpring Boot and Spring Cloud.
• Expertise in usingSpring Security Moduleby utilizing itsSite Minder, OAuth 2.0 Configuration, Open ID Connect for Enterprise Application Authentication and Authorizations.
• Better understanding of usingSpring Cloud - Netflix OSSstack for microservices deployment and auto configurations likeRibbon, Hystrix, Zuul with Eureka service registry.
• UsedSpring IOCfor specifying the dependencies of the objects using dependency injection.
• ImplementedORM frameworkssuch asSpring Data.
• UsedWADL(Web Application Description Language) for modelling the resources. Implemented transaction management in the application by applyingSpring AOPFramework.
• To achieve modularity and to handle cross cutting concerns liketransaction management,logging and profilingSpring AOPis used.
• UsedHibernateas theObject-Relational Mapping (ORM)tool to access the persistent data.
• Worked withspring batchto convert xml files to data base records.
• Quartz scheduleris used to schedule jobs in the application.
• ConfiguredJBOSSApplication server and usedOracledatabase.
• Developed Mean Stack from scratch includingMongo DB server (Mongoose Connector)setup andExpress JS server development.
• Used a highly durable messaging system calledApache Kafkafor asynchronous exchange of vital information between multiple business applications.
• Behavioural and Integration testing is done usingCucumberandSeleniumrespectively.
• Deployed and MonitoredMicro ServicesUsingPivotal Cloud Foundryand managed Domains and Routes with theCloud Foundry.
• Published message services usingSpring AMQP’s Rabbit Templateand subscribes to the messages on a POJO using Message Listener Adapter.
• Worked withJenkinsContinuous Integration and Continuous Deployment (CI/CD).
• ConfiguredWeb packto execute linters, magnifiers, pre/post-processors, tests, transpires, etc. based on build target.
• Creating, managing, and performing container-based deployments usingDocker imagescontaining Middleware and applications together.
• Maintenance of splunk environment with multiple indexers.
• Deployed thedroolsrules as a service inJ2EEstack environment.

Environment: JavaScript, React JS-Redux, HTML5, CSS3-LESS, AJAX, Bootstrap, jQuery, Spring Security, Rabbit MQ, Spring Data, Spring Batch, Quartz Scheduler, Hibernate, MicroServices, Restful services, Eclipse Java EE IDE, Jenkins, Spring Cloud-Netflix, Splunk, Node Package Manager(NPM), Oracle DB, MySQL, Spring Data, Spring AOP, Spring Transaction Management, Spring Batch, RESTful Services, Swagger, Jersey, Docker, Ribbon, JUnit, Mokito, Mocha, Chai, Selenium, Cucumber, Cassandra DB, Cassandra Node Connector, Gradle, JBoss, WADL, Web pack, Pivotal Cloud Foundry(PCF), Drools, IBM MQ, Kafka.

Java/J2EE Developer

Confidential

Responsibilities:

• Designed and developed the application usingagile methodologyand followed TDD, Scrum.
• Worked on Enhancements and Post Production Fixes forEmployer Resource Information Centre (ERIC)Application.
• The enhancements required us to develop new correspondences and fix the old correspondences.
• Implemented Hibernates’ Lazy default fetch plan for generating proxies and collection wrappers and created fetching strategies for minimizing the number of SQL statements.
• Designed and Developed theUI Frameworkbuilt usingJSF Apache My Faces, Ajax4JSF.
• Involved in writingJSF Backing Beansfor controlling the UI and writing custom components and validators.
• Extensively used Java best practices and implemented several Coredesign patternslikeSingleton, Data Access Object (DAO), and Business Delegateetc.
• Used AsynchronousJavaScriptandXML (AJAX)for better and faster interactive Front-End. Configured Navigation rules in theJSFconfiguration files to add new functionality to the application by writing newJSPs.
• Responsible for configuring and deploying the builds onWebSphereApp Server. ImplementedJ2EEdesign patterns such asSession Facade, Factory, DAO, DTO and Proxy.
• Wrote data Components for ERIC application wrote and calledStored ProceduresusingJava, HQL, and Hibernate.
• Developed user interface using JSP with JavaBeans, JSTL and Custom Tag Libraries,JS, CSS, JQuery,Node.jsand HTMLto speed the application.
• Worked onJava Beansand other business components for the application and implemented new functionalities for the ERIC application.
• UsedMongoDBin backend to persistent data into database and written SQL/Mongo queries to access/update the data from/ to the database.
• Worked onAdobe Form ServerandExtension Rights Serverfor generating correspondences as PDF and PDF forms are submitted online.
• Developed Business components using Java Objects, Core Java, Multithreading, Servlet, and JSP.
• UsedJava Architecture for XML Binding(JAXB) for marshalling and un-marshalling java objects and XML. AndSerena Dimensionswas used for the version control of source code.
• Developed report program to migrate project definitions and WBS elements from GSF system IES system.
• Log4jframeworkwas usedto debug and trace the application.
• Experience in creating Tables, Indexes, Constraints, Users Defined Functions, Views, Stored Procedures, Triggers and complex SQL statements.
• Experienced in writing complex SQL Queries, Stored Procedures, Triggers, Views, Cursors, Joins, Constraints, DDL, DML and User Defined Functions to implement the business logic and created clustered and non-clustered indexes.
• Experience using different RDBMS (MySQL, Oracle, MS SQL Server) and REDIS cache.
• Designed and developed a generic aggregation client SDK library, which interacts with Redis and provide the short term aggregates for incoming scoring requests.

Environment: Java 1.5, J2EE 1.5, JAXB, XML, XSD, IBM WebSphere, IBM DB2, IBM MQ, IBM Rational Application Developer (RAD) 7.0, JSF, Adobe LiveCycle Designer 7.0, Spring Web flow, Ext.js, XDP, Form Server, Aqua Data Studio, JavaScript, log4j, Junit, JMS.

Java/J2EE Developer

Confidential

Responsibilities:

• Understanding Use requirements participating in design discussions, implementation feasibility analysis both at front-end and backend level, documenting requirements.
• Application Modelling, developing Class diagrams, Sequence Diagrams, Architecture / Deployment diagrams usingIBM Rational Software Modellerand publishing them to web perspective withJava Doc.
• Participation did in Design Review sessions for development / implementation discussions.
• Designed & coded Presentation(GUI) JSP’swith Struts tag libraries for Creating Product Service Components (Health Care Codes) usingRAD.
• DevelopingTest Casesand unit testing usingJunit.Solving QA defects, scheduling fixes, providing support to production application.
• Coded Action classes, Java Beans, Service layers, Business delegates, to implement business logic with latest features ofJDK1.5such as Annotations and Generics.
• Extensive use ofAJAXandJavaScript for front-end validations, and JavaScript based component development usingEXT JSFramework with cross browser support.
• Appropriate use of Session handling, data Scope levels within the application.
• Designed and developedDAOlayer with Hibernate3.0 standards, to access data fromIBM DB2database throughJPA(Java Persistence API) layer creatingObject-Relational Mappingsand writingPL/SQLprocedures and functions.
• Integrating Spring injections forDAOsto achieve Inversion of Control, updating Spring Configurations for managing Java objects using call-backs.
• Application integration with Spring Web Services to fetch data from external Benefits application using SOA architecture, configuringWSDLbased onSOAPspecifications and marshalling and un-marshalling usingJAXB.
• Prepared and executedJUNITtest cases to test the application service layer operations beforeDAOintegration.
• Creating test environments withWASfor local testing using test profile. And interacting withSoftware Quality Assurance (SQA)end to report and fix defects using Rational Clear Quest. ImplementedSpringWeb Flowfor defining and executing UI flow in the application for the Order Guide module.
• Creating views and updating code to IBM Rational Clear case for Source code control.

Environment: Java JDK 1.5, JSP, JSP Custom Tag libraries, JavaScript, EXT JS, AJAX, XSLT, XML, DOM4J 1.6, EJB, DHTML, Web Services, SOA, WSDL, SOAP, JAXB, Spring Webflow, IBM RAD, IBM WebSphere Application server, IBM DB2 8.1, UNIX, UML, IBM Rational Clear case, JMS, Spring Framework, a 3.0, PL/SQL, JUNIT 3.8, log4j 1.2, Ant 2.7.

Java Developer

Confidential

Responsibilities:

• Involved in Daily Scrum (Agile) meetings, Sprint planning and estimation of the tasks for the user stories, participated in retrospective and presenting Demo at end of the sprint.
• Involved in the front end usingJSP, JSTL JQuery, Servlets, HTML, JavaScript, and AJAX.
• Designing and developing Web UI usingJSP,Servlets,Strut,HTMLandJQuery.
• Designed and deployed the Java Beans inXMLand retrieved the data from database usingDAO.
• Developed the application usingStruts Frameworkwith respect to Model View Controller architecture.
• Used the Struts Validation and Tiles Framework in the presentation layer.
• DevelopedWeb Serviceclient interface withJAX-RPCfromWSDLfiles for invoking the methods usingSOAP.
• Extensively worked onSOAandWeb Servicesto get the data from third party systems and ConfiguredJMSqueues on server.
• Configuredstruts-config.xml, andweb.xmlon the application.
• Responsible for development of configuration, mapping and Java beans for persistent layer (Object-Relational Mapping) usingHibernate.UsedJDBC, SQLfor storing and accessing data fromOracleand developedSQLscripts.
• Involved inunit testing, test case reviews and code reviews in accordance with applicable development standards.
• UsedTFSfor code version control and issue tracking.
• Developed server side application which handles the database manipulation with the back-endOracledatabase.
• Interacted with BA team to get the requirements.
• Involved in design and development andscrummeetings.
• Providingproduction supportfor the application stability.

Environment: Java, Struts, JDBC, JQuery, HTML, Ajax, CSS, JavaScript, XML, XSLT, Oracle, Log4j, Hibernate, Eclipse, JUnit, Tomcat Server, Maven.