SUMMARY

• 8+ Years of professional experience in Design, Development, and Implementation, testing and Maintenance of Java & J2EE web and client - server-based Internet applications.
• Hands on experience in Requirement Analysis, High-level design using design patterns and Object-Oriented programming using Software development methodologies such as Agile, SDLC, RUP, and OOAD.
• Completed projects using Java, J2EE, EJB, SPRING, Struts, HIBERNATE, IBATIS, WEB SERVICES, RMI, Servlets, JSP, Angular 2 & 4, Flex, JSF, JNDI, JDBC, JMS, JTS, JavaScript, HTML, SOAP and XML, XSLT, SQL, PLSQL, Ajax, Maven, Ant-build scripts.
• Expertise in configuring the Spring Application Context with dependency injection and using Spring Framework 2.0/2.5 integrated it with Struts/ Hibernate/Web Services/ JMS/ JDBC/ JNDI.
• Developed Java Beans and used custom tag libraries for embedding dynamic into JSP pages. Used AJAX to perform asynchronous data validation.
• Created Test automation framework usingCucumberandSeleniumweb driver.
• Experience in building web applications using Spring Framework features like MVC (Model View Controller), IOC (Inversion of Control), DAO (Data Access Object) and familiarity with AOP (Aspect Oriented Programming).
• Strong Knowledge on automated java-based integration testing and behavioral testing of the application using Selenium (connects you to your browser), Unit testing, Junit4, TestNg, (organizes the tests) Mockito, (power mock for mock) and for rest testing mockmvc and fluent API, mockers service server for spring rest template testing.
• Extensive experience in Struts Tag Libraries and Custom-tag implementations in JSP to embedded business logic.
• Experience in managing and reviewing Hadoop log files.
• Experience in developing and maintaining Test Automation Frameworks like Data Driven, Keyword Driven, Hybrid and Cucumber (BDD/ATDD).
• Experienced in performingunit testing using JUnit, Test NG, Mockito, integration and deployment of applications using tools such as ANT,Maven, Gradle, Jenkins & debugging through log4j and Splunk.
• Build responsive application using AngularJS, Node.js application compatible with mobile devices and different web platforms and browser. Consumed different plugins and angular modules and providers.
• Experience in analyzing data with Hive, Pig and Hadoop Streaming.
• Experience in testing with JUnit Framework using Mockito, PowerMock and Easy Mock.
• Experience in Test Driven Development (TDD), using Spring JUnit Runner,Mockito.
• Developed microservices to load the data from DynamoDB to Kafka topics for reporting and Used Git to control the build version.
• Developing and testing the blockchain protocol.
• Experience working with big data and real time/near real time analytics and big data platforms like Hadoop, Spark using programming languages like Scala and Java.
• Expertise in client scripting language and server-side scripting languages like JavaScript, jQuery, JSON, AngularJS, Node.js, ActionScript, JSF and JSP.Experience in designing Rich Internet Applications (RIA's) with jQuery and AJAX.
• Experience in unit testing the applications using JUnit Framework and developed logging and standard mechanism based on Log4J and good experience in shell scripting.
• Experienced with IDE’s like RAD, WSAD, Eclipse, My Eclipse, Net Beans etc.
• Developed applications with Spring technologies like Spring Core, MVC, DAO, Spring-Data-JPA, Boot and Netflix OSS Components (Spring Zuul, Spring Eureka, Spring Hystrix and Spring Ribbon)
• Experienced with various application / web servers like WebSphere, JBoss, BEA WebLogic, and Tomcat.
• Experience with creating Docker Image file and containers and deploying it to AWS.
• Hands-on experience with various AWS service like EC2, Lambda, S3, Elastic Load Balancer, SQS, Elasticache (Memchache, Reddis).
• Working experience in Map Reduce programming model and Hadoop Distributed File Systems.
• Good knowledge on Big data technologies likeSpark, Scala, Hadoop, Map-Reduce, HDFS, Hive, HBase, Zookeeper, Kafka.Expertise in implementing Web Services using SOAP, WSDL.
• Good experience in writing views, Stored Procedures and database triggers with comprehensive knowledge on Performance Tuning and Query Optimization in Oracle Stored Procedures.
• Experience of Database design in Oracle/SQLServer/MongoDB query-based programming and PL/SQL procedure programming and proficient in Database programming using JDBC and SQL.

TECHNICAL SKILLS

Frameworks/ORM: Spring core, Spring boot, Spring, SAOP, Spring Transaction, Spring MVC, Struts, JSF, Hibernate ORM, JSF, JPA, C, C++, Java, J2EE

Web Technologies/J2EE: JSP, Servlets, EJB, jQuery, JSTL, AJAX, XML, JavaScript, AngularJS, HTML5, CSS3,, CANVAS, TILES, DOJO, JSON, XSLT, XML, JNDI, JUnit

IDE’s and Utilities: Eclipse, My Eclipse, NetBeans, IntelliJ IDEA, Spring Tool Suite (STS), XCode, Apache, Apache Camel

Database: Oracle 10g/11g, SQL Server, MongoDB, DBeaver, MySQL, PostgreSQL, MS SQL Server, Oracle

Web Services: RESTful web service, SOAP, WSDL, JMS, JAXB. UDDI, Axis2, CXF, JMS, MDB, MQ Series.

Version control/Build Tools: Git, SVN, CVS, ClearCase, Jenkins, Cucumber, Maven, Ant.

UI Development Tools: Visual Studio, Eclipse IDE, IntelliJ IDEA, Vue.js, UI, Groovy

Application Servers: Oracle WebLogic, Tomcat and JBOSS 5.1/6.0, IBM Web sphere, AWS

Virtualization: VMWare, Oracle Virtual Box, Parallels.

Operating Systems: Linux (Red Hat, Ubuntu, Fedora)

Scripting: JQuery, Angular 2/4, JavaScript, jQuery, JSON, JSF and JSP, Node.js.

Logging/Debugging Bug Tracking /Management Tools: Log4J, Splunk, Log4Net, JIRA, ClearQuest, PowerMock, MavenLink

Design Tools: UML on Rational Rose 4.0.

Testing Tools: JUnit, Mockito.

PROFESSIONAL EXPERIENCE

Confidential, New York, NY

Sr. Full Stack Developer

Responsibilities:

• Migrated User Application from Bluezone Mainframe to UI Interface.
• Application Development using Visual Studio
• Developed variouspagesin the applications in front-end technologiesHTML5 Canvas,CSS3-SASS,JSON,Angular 8, and Visual Studio.
• Designed and built a number of full stack blockchain applications using Python, JavaScript, and ClojureScript.
• Developing user-facing applications using Vue.js
• Used Streams and Lambda expressions available as part ofJava 1.8to store and process the data.
• Built Angular 8 components,UIservices to consume rest services using Component based architecture provided byAngular 8.
• Involved on AWS (Amazon Web Services), EC2, RDS, Dynamo DB, S3, Cloud Formation Templates
• Worked on object-oriented programming (OOP) concepts usingPython, Django and Linux.
• Applied design patterns including MVC Pattern, Façade Pattern, Abstract Factory Pattern,DAO Pattern and Singleton
• Building Pacatio (Digital Wallet) mobile application with native iOS (Objective-C). Since February 2015, I joined their team as Mobile Developer and i am responsible for delivering weekly updates. I used newest technologies and techniques in iOS 8 like Braintree SDK, Google Analytics, AWS, Mixpanel and Blocks.
• Monitored the Error logs using Log4j and Developed Mockito and JUnit test cases.
• Designed and developed Restful API and services using best practices to interact within themicroservices and with the front-end using spring MVC and spring rest.
• Good Understanding of “big data” technologies: Hadoop, Storm, HBase, Cassandra, Cloudbase/Accumulo, Puppet and Chef.
• Writing Junit and ATDD using Cucumber,and code quality controls
• Good understanding of Android UI guidelines.
• DevelopedReact JSpages, Web services calls, andAJAXcalls for the application.
• Used Spring Boot for removing all XML configurations.
• Used Spring Kafka API calls to process the messages on Kafka Cluster setup.
• Used Spring MVC and Dependency Injection for handling presentation and business logic.
• UsedNode.JSfor heavy DOM manipulation.
• Developed Business Logic usingPythonon Django Web Framework.
• Developed Merge jobs inPythonto extract and load data into MySQL database.
• Involved developing code for obtaining bean references in spring framework using Dependency Injection (DI) or Inversion of Control (IOC) using annotations
• Extensive use of model, view, controller architecture,SpringCore,SpringTransaction Manager, Spring Batch.
• Good Exposure on Apache Hadoop Map Reduce programming PIG Scripting and Distribute Application and HDFS
• Implemented Internationalization using Spring MVC Interceptors and Spring core modules.
• Implemented the application using the concrete principles laid down by several Design patterns.
• Implemented MicroServices Architecture, with Spring Boot-based services interacting through a combination of REST, SOAP.
• Used Apache Spark for big data workloads for optimized query execution through distributed processing.
• Worked on JMS messages and deliver them as an Oracle Golden-Gate trail. This feature is included in both Oracle Golden-Gate Adapters and Oracle Golden-Gate for Big Data product
• Used kafka services to push data to HBase and Hive tables.
• Utilized Amazon Web Services (AWS) EC2 to deploy Docker containers with both monolith and Microservice Architecture
• Expertise in using Design patterns and object oriented methodologies to design software formobilephones.
• Experience in developing and maintaining Test Automation Frameworks like DataDriven, Keyword Driven, Hybrid andCucumber(BDD/ATDD).
• Implemented Zipkins for distributed Micro Service Monitoring.
• Worked exclusively on frontend developing /updating pages using UI libraries like React JS.
• Creates and configure micro services architecture and integrated with React.JS application.
• Developed various screens for the front end using React JS and used various predefined components from NPM (Node Package Manager) and redux libraries.
• Worked in using React.JS Components, Forms, Events, Keys, Router, Animations and Flux concept.
• Written LINUX shell scripts to identify user login information.
• Unit testing of developed product features usingJunit and Mockitoframeworks as part of development cycle.
• Involved in building database Model, APIs and Views utilizingPython, in order to build an interactive web based solution.
• Used Spring JMS module for lookup for the queues and MDBs for the listeners
• Established Database Connectivity using JDBC, Hibernate O/R mapping with Spring ORM for Oracle.
• Used Log4J for application logging and notification tracing mechanisms.
• Deployed Applications on Apache Tomcat Server.
• Experience with creating Docker Image file and containers and deploying it to AWS.
• Created and Configured Microservices architecture for CDT Directory project and integrated with AngularJS application
• Experience with Hadoop components such as Job Tracker, Task Tracker, Name Node, Data Node, MapReduce andHDFSFramework.
• Developed unit test cases using Mockito and developed BDD test cases with cucumber.
• Used Spring JDBC API to talk MySQL Database for Read and Write operations.
• IntegratedSpring DAOfor data access using Hibernate to fetch data from database and avoid redundant database access statements
• Worked in team to develop iOS and Android application.
• Experienced in developing web-based applications usingPython, Django, QT, C++, XML, CSS, JSON, HTML, DHTML, JavaScript and JQuery.
• Built a supply-chain on Blockchain POC using Hyperledger for asset creation and management. Implemented Google two factor authentication on BTCFunds, a Bitcoin exchange.
• Created AWS Multi-Factor Authentication (MFA) for instance RDP/SSH logon, worked with teams to lock down security groups.
• Developed components of web services (JAX-WS, REST, JAX-RPC, Apache CXF) end to end, using different JAX-WS standards with clear understanding on WSDL (type, message, port Type, bindings, and service), SOAP using various message exchange patterns
• Responsible forwriting ATDD scripts with Cucumber,testing manually as well as automated.
• Worked with unit testing of ReactJS applications using Jest and Spring Boot applications using JUnit, Mockito and performed end to end testing using Protractor.
• Worked with Kafka to load the data into HDFS and exported it into DBeaver database.
• Strong MongoDB administration skills inUNIX, Linux.

Environment: Java1.8, J2EE, HTML5 Canvas, Visual Studio, Vue.js, CSS3,Python, jQuery, Ajax, Mockito, Bootstrap, JavaScript, Angular 8, ReactJS Hibernate, Spring MVC, Spring IOC, Spring core, DBeaver, Spring boot, Spring security, JSP, JUnit, Jmeter, Apache AXIS, JAX-WS, Restful, Node.js Amazon Web Services (AWS), Microservices, Jenkins, Kafka, Big Data,Hadoop,WSDL, MySQL, JIRA and Spring Tool Suite.

Confidential, Syracuse, NY

Sr. Full Stack Developer

Responsibilities:

• Involved inSDLCrequirements gathering, analysis, design, development and testing of application, developed usingAGILE/Scrum methodology.
• Developed variouspagesin the applications in front-end technologiesHTML5,CSS3-SASS,JSON,and Angular 5.
• Used Streams and Lambda expressions available as part ofJava 1.8to store and process the data.
• BuiltAngular 5components,UIservices to consume rest services using Component based architecture provided byAngular 5.
• Experienced withPythonframeworks likeWebapp2 and, Flask.
• Designed and implemented UI layer using JSP, JavaScript, HTML, DHTML, JSON, XML, XHTML, XSL, XSLT, XSL-FO and business logic using Servlets, JSP, EJBs and J2EE framework. Experience with multiple Blockchain Technology platforms (Ethereum/Hyperledger/Ripple).
• Worked with unit testing of ReactJS applications using Jest and Spring Boot applications using JUnit, Mockito and performed end to end testing using Protractor.
• Experience in working with big data platform with a combination ofHive MQ, CassandraandSpark.
• Designed dynamic and browser compatible pages using HTML5, CSS3, jQuery.js and Vue.js and Laravel.
• Developed powerfulSingle Page Applicationand dynamic responsive Web Application withAngular 5.
• Used React JS to create views to hook up models to the DOM and synchronize data with server as a Single Page Application (SPA) and React-Reduxthunkto make REST API calls.
• Applied design patterns includingMVCPattern, Façade Pattern, Abstract Factory Pattern,DAO Pattern and Singleton
• Developed unit test cases using Mockito and developed BDD test cases with cucumber.
• Advanced development experience with latest JavaScript frameworks like React JS, Angular2/4, AngularJS, Backbone.js, Node.js, Require.js, D3.js, ES5 and ES6
• Designed and developed Restful API and services using best practices to interact within themicroservices and with the front-end using spring MVC and spring rest.
• DevelopedReact JSpages, Web services calls, andAJAXcalls for the application.
• Used Spring Boot for removing all XML configurations.
• Involved in working with Cloud technologies like Amazon Web Services (AWS) and Cloud computing infrastructure such as Amazon SQS, Amazon Dynamo DB, Amazon EC2, Amazon S3 and Amazon Red Shift.
• Developed web channel for Retail industry using BlockChain technology using Node.js. Developed Unit and E2E test cases using Jasmine and Grunt, Node JS.
• Expert knowledge of and experience in Object oriented Design and Programming concepts.
• Good Knowledge ofPythonandPythonWeb Framework Django.
• Used SpringKafkaAPI calls to process the messages onKafkaCluster setup.
• Used Spring Core and Spring Data modules in Spring MVC framework for implementing Model-View- Controller (MVC) architecture Confidential the Web tier level to isolate each layer of the application so that complexity of integration will be reduced, and maintenance will be very easy.
• Used Spring MVC and Dependency Injection for handling presentation and business logic.
• ImplementedNode.js, Socket.io, Redis, Supervisor, Grunt, Yeoman, and Angular for scalable website architecture and Realtime technology
• Gained Knowledge on Electrode Platform which is a NodeJS/Web platform built on top of the ReactJS and HapiJS frameworks.
• Good Knowledge onHadoopCluster architecture and monitoring the cluster. In-depth understanding of Data Structure and Algorithms
• Involved developing code for obtaining bean references in spring framework using Dependency Injection (DI) or Inversion of Control (IOC) using annotations
• Implemented the application using the concrete principles laid down by several Design patterns.
• Implemented MicroServices Architecture, with Spring Boot-based services interacting through a combination of REST, SOAP.
• Used kafka services to push data to HBase and Hive tables.
• Utilized Amazon Web Services (AWS) EC2 to deploy Docker containers with both monolith and Microservice Architecture
• Agile development(2 week sprints/Iterations),Test Driven Development(TDD),Junit, Mockito, Maven, JIRA issue navigator, Crucible Code Reviewsis part of every day’s work.
• Created and Configured Microservices architecture for CDT Directory project and integrated with AngularJS application
• ImplementedCucumberfor behavioral testing of application.
• Involved in converting Hive/SQL queries into Spark transformations using Spark RDD, Scala and Python.
• Used Spring JDBC API to talk MySQL Database for Read and Write operations.
• Integrated Spring DAO for data access using Hibernate to fetch data from database and avoid redundant database access statements
• Created AWS Multi-Factor Authentication (MFA) for instance RDP/SSH logon, worked with teams to lock down security groups.
• Developed components of web services (JAX-WS, REST, JAX-RPC, Apache CXF) end to end, using different JAX-WS standards with clear understanding on WSDL (type, message, port Type, bindings, and service), SOAP using various message exchange patterns
• Worked withKafkato load the data into HDFS and exported it into MongoDB database.
• Strong MongoDB administration skills inUNIX, Linux.
• Used Node.js, React.js for development and architecture for startup SaaS application primarily using MongoDB and Dynamo DB
• Used MongoDB internal tools like Mongo Compass, Mongo Atlas Manager & Ops Manager, and Cloud Manager Etc.
• Used Jenkins to load JAR files from Database required for running the application
• Used JSON for data exchange between application modules along with XML
• Used Maven building tool for creating EAR file to be deployed in application servers. It is also used for dependency management of code in application.
• Implemented persistence framework using Hibernate& Handled Transaction Management using the provided data source.
• Wrote scripts in JMeter to test the performance of the API's
• Applied write concern for level of acknowledgement while MongoDB write operations and to avoid rollback.
• Managed servers on the Amazon Web Services (AWS) platform instances using Chef Configuration management
• Used JIRA to assign, track, report and audit the issues in the application.
• Prepared Unit test case usingJUnitand usedJenkinsfor continuous integration testing.
• Used Git to maintain the version of the files and took the responsibility to do the code merges and creating new branch when new feature implementation starts.

Environment: Java1.8, J2EE, HTML5, CSS3, jQuery, Ajax, Bootstrap, JavaScript, Mockito, Angular5, Vue.js, ReactJS Hibernate, Spring MVC, Spring IOC, Node.js, MongoDB, Spring core, Spring boot, Spring security, JSP, JUnit, Jmeter, Apache AXIS, Python,JAX-WS, Restful, Amazon Web Services (AWS), Microservices, Jenkins, Kafka, WSDL, MySQL, JIRA and Spring Tool Suite.

Confidential, Chicago, IL

Full Stack Developer

Responsibilities:

• Created user-friendly GUI interface and Web pages using HTML, CSS JavaScript, AngularJS and NodeJS.
• Designed and developed aRestful APIsfor different modules in the project as per the requirement.
• Worked on Prototyping and Implementation using JavaJDK1.7
• Used Angular, Bootstrap for rich user interface and faster performance and Angular UI Router for routing pages.
• Used Spring Boot, which is radically faster in building cloudMicroservicesand develop Spring based application with very less configuration.
• Hands on experience using React.js components, forms, events, keys, router, plus Redux, animation and Flux concept
• Developed and performed test cases using Jasmine and Karma for front end unit testing and used the Cucumber, Protractor and Http-server for the End 2 End testing.
• Extensively used JSON to parse the data from server side to satisfy the business requirement
• Used Spring MVC and Dependency Injection for handling presentation and business logic.
• To maintain loose coupling between layers published the business layer as services and injected the necessary dependent components using Spring IOC and published cross cutting concerns like Logging, User Interface exceptions, Transactions using Spring AOP.
• Developing scripts for build, deployment, maintenance and related tasks using Jenkins,Dockerand Python.
• Designed and developed Rest Based Webservices usingJersey framework.
• UsedAngularJSas framework to create a Single Page Application (SPA) which can bind data to specific views and synchronize data with server
• Involved in performing Unit and Integration testing (JUnit). Used Mockito for creating Mock objects and run tests using Mockito Runner.
• Used Amazon Web Services (AWS) likeEC2, S3,cloud watchandElastic Bean Stalkfor code deployment.
• Integrated Spring DAO for data access using Hibernate.
• Hands-on experience with various AWS service like EC2, Lambda, S3, Elastic Load Balancer, SQS, Elasticache (Memchache, Reddis).
• Used Spring Security for Authentication and Authorization of the application.
• Implemented persistence framework using Hibernate& Handled Transaction Management using the provided data source.
• Developed services, which involved both producing and consuming, web services (WSDL, SOAP and JAX-WS). Also, published the WSDL to UDDI registry using the SOA architecture.
• Responsible for designing Hibernate mapping files based on business logic and Object relationships.
• Integrated Spring and hibernate together and worked on developing backend components and services using Hibernate and spring.
• Created User Controls and simple animations usingJavaScript andPython.
• Developed Message Driven Bean for asynchronous sending Messages using JMS.
• Consumed Web Services to interact with other external interfaces to exchange the data in different forms by using SOAP service.
• Did Test First development (Test Driven Development) after creating dummy stubs using Junit and Mockito for Mocking objects to test.
• Experience in working with JavaScript framework such as ReactJS and involved in developing single page application using Redux, Bootstrap
• Deployed and monitored scalable infrastructure on Amazon web services specifically on AWS EC2.
• Written LINUX shell scripts to identify user login information.
• Used Spring JMS module for lookup for the queues and MDBs for the listeners
• Established Database Connectivity using JDBC, Hibernate O/R mapping with Spring ORM for Oracle.
• Used Log4J for application logging and notification tracing mechanisms.
• Deployed Applications on Apache Tomcat Server.
• Experience with creating Docker Image file and containers and deploying it to AWS.
• Implemented DevOps JUNIT test cases for unit testing and Suites for end-to-end testing.
• Used JIRA for tracking the Project Stories in Agile Methodology.
• Used Maven tools for building and deploying the Web applications.

Environment: Java 1.7/J2EE, SOA, Spring Core, log4j, Hibernate, Jetty, Perl, Mockito, Spring MVC, AngularJS, JavaScript, HTML, CSS, RESTful web services, ReactJS,Amazon web services, Node.JS, Bootstrap,Python, JMS, jQuery, Spring MVC, Maven, Oracle 12c, Microservices

Java Developer

Confidential - Alpharetta, GA

Responsibilities:

• Worked on design and implementation of Market Place application and involved in various phases of SDLC.
• Worked in Agile development environment and participated in SCRUM meetings throughout the life cycle of project.
• Rewrote existing Python/Django modules to deliver certain format of data.Wrote python scripts to parse XML documents and load the data in database
• Role based application monitoring and recording audit history, activity of different roles accessing the site
• Deliver technical solutions utilizing defined technology stack.
• Implemented the front end using HTML, CSS, JavaScript and AngularJS was used to develop declarative
• Used JQuery, AJAX to interact with Java Servlet.
• Used Python and Django to interface with the jQuery UI and manage the storage and deletion of content.
• Worked on several python packages
• Used Struts, and AJAX for highly interactive and graphic user interface.
• Implement JUnit test cases for Struts/Spring components
• For client-side view rendering services, used React JS typically used various predefined Redux libraries
• Developed Action classes, Action Forms and Struts Configuration file to handle required UI actions, JSPs for Views and used HTML in web page component development.
• Developed Server-side presentation layer using Struts MVC Framework and designed and developed Application based on spring framework using MVC design patterns.
• Used Spring IOC for Dependency Injection and used Spring JDBC for interacting with database.
• Used various design patterns like Business delegate, Singleton, Factory and DAO.
• Performed Inheritance based Hibernate mappings in tables to simplify the data in Hibernate.
• Involved in implementation of web services (top-down and bottom-up) using SOAP services.
• Interact with offshore team to coordinate and guide for the development happening in offshore.
• JUnit is used to perform the Unit Test Cases.
• Involved in creating a reusable component usingReactJSfor DOM manipulation
• Used JUnit to Unit test the modules & Log4j along with Splunk for logging error/debug messages and managing them.
• Used Oracle database for SQL, PL/SQL scripts, stored procedures, functions, triggers, Oracle forms/ Reports.
• Performance Tuning and Optimization with Java Performance Analysis Tool using Load Runner.
• Worked on Installing and configured WebLogic Application Server and Maven Build Tool.
• Made use of CVS for checkout and check in operations.

Environment: Java, J2EE, Struts, Hibernate, JSP, AWS, Angular JS,Python, HTML, XML, XSL/XSLT, JavaScript, AJAX, Spring MVC, SOAP, Oracle, CVS, J Profiler, ReactJS, Java Performance Analysis Tool, Eclipse, Maven, WebLogic.