SUMMARY:

• Around 9 years of experience as full stack Java developer with strong development experience in User Interface applications and integration of highly transactional and scalable enterprise applications with JAVA/J2EE Technologies.
• Used the best practices of SDLC as well as worked in collaborative Agile/SCRUM with CI continuous Integration and CD continuous delivery environment.
• Proficient in developing front - end systems with HTML, CSS, PHP, Bootstrap, XML, AJAX, JavaScript, JQuery, MongoDB and javascript framework like NodeJS, ReactJS, ExpressJS, AngularJS, GOLANG, NodeJS, Ember JS (MEAN Stack).
• Hands-on experience in server-side Java development with exposure RESTful web services, AJAX powered web applications also developed Web applications to consume JSON response using callback functions.
• Extensively developed the Spring Features like Spring MVC, Spring DAO, Spring Boot, Spring Batch, Spring Heroku, Spring Security, Spring Integration, Spring Eureka, Spring Netflix, spring, and Hystrix.
• Hands on experience in implementing SOA (Service Oriented Architecture) and web services such as SOAP and REST using WSDL, CXF2, JAX-WS and JAX-RS.
• Developed and designed web interfaces and layouts using PHP, JavaScript, HTML, TypeScript and CSS.
• Very good experience with Model2 (MVC) architecture and Jakarta Struts/Tiles. Solid experience in using Jakarta Apache frameworks like Struts, Hibernate ORM, JSF, Maven, ANT, Junit, TestNG and Log4J.
• Hands on experience on working with installation of Docker using Docker toolbox.
• Knowledge of writing rules directly in the Drools Rule Language (DRL), and decision table.
• Experience working on Kubernetes for creating new Projects, Services for load balancing and adding them to Routes to be accessible from outside, Creation of Pods through new application and control the scaling of pods, troubleshooting pods through SSH and logs, writing/modification of Buildconfigs, templates, Image streams etc.
• Worked on several standard python packages like Numpy, matPlotLib, Pickle, PySide, Scipy, wxPython, PyTables etc.
• Developed and implemented the MVC architectural Pattern using JSF Framework including JSP, Servlets, EJB.
• Hands on experience in AWS provisioning and good knowledge of AWS services like EC2, Cognito, S3, Elastic Beanstalk, ELB (Load Balancers), RDS, VPC, Direct Connect, Route53, Cloud Watch, Cloud Formation, IAM, SNS.
• Hands on experience in installing, configuring, and using Hadoop ecosystem components like Map Reduce, HDFS, HBase, Oozie, Hive, Sqoop, Falcon, Pig, Storm, Kafka, Zookeeper, Yarn and Lucene.
• Experienced in development, testing and deployment of enterprise applications on Windows & UNIX platforms using IDE’s such as Eclipse, Rational Application Developer (RAD), NetBeans, and IntelliJ.
• Experience in creating Databases, Tables, Stored Procedure, DDL/DML Triggers, Views, User defined data types (UDT), Cursors, Functions, data dictionaries, and maintaining data integrity and Indexes using T-SQL.
• Strong knowledge on SpringYarn terminology and the High-Availability of Hadoop Clusters, Spark and Hadoop Architecture and various components such as HDFS, YARN, Name Node, Data Node and MapReduce concepts.
• Developed applications using latest technologies like EJB3.2, Spring 3.x/4.x, Hibernate3.2/4.x, and REST based Web services (Axis2.0, JAX WS 2.0, JAX RS), Rule Engines (Drools4.1, ILOG), JBPM tools.
• Expertise in design and development of various web and enterprise applications using Type safe technologies like Scala, AKKA, Play framework, Slick.
• Experience in database development skills like MySQL, PL/SQL and MS Access, Oracle 9i to 11g, SQL Server and NoSQL Databases like MongoDB, Marklogic, Cassandra etc. and experience with INFORMATICA and SQL ALCHEMY.
• Experience providing to development teams (Onshore, Offshore) on how to track, plan and analyze using JIRA.
• Good working knowledge of Grunt, Bower, Generators. Having knowledge on (JMS) MQ's like Rabbit MQ, IBM MQ and Active MQ. Knowledge on creating a custom web app using Spring, iBATIS.
• Upgraded Apache Tomcat in Production servers to latest version, configured and tested successfully.
• Good experience in unit testing using Karma, Jasmine and JUnit, Automated Testing using Java, Junit/TestNG, Selenium (IDE/Webdriver), Integration Testing using Continuum, Selenium, Hudson, Jenkins and Apache camel.

TECHNICAL SKILLS:

Languages: JAVA 8.0/7.0/6.0/5.0 , UML, XML, SQL, PL/SQL, python, Google Golang, Scala.

Frameworks: Spring 4.x/3.x/2.x, Hibernate 3.0/2.1, Struts 2.0/1.2

Web Technologies: Angular, jQuery, Html, PHP, JavaScript, CSS, AJAX, Ember, React, Redux, Play, JBPM.

Database: Oracle, DB2, MongoDB, DB2, SQL Server, MySQL, NoSQL (DocumentBD).

J2EE: Servlets, JSP, JSTL, JMS1.1, JDBC, JUnit, JNDI, XML, JAXB, DOM, SAX, JTA.

Testing Frame Works: JUnit, JMeter, EasyMock, Mockito

Tools: UML, Rational Rose, Splunk, CURL, SQL Developer, TOAD, Hudson, Jenkins, Ant, Maven, Log4J, SOAPUI, Rest Client UI, Postman, Grunt, Cognito, Node JS.

Web Services: JAXWS, JAXRPC, JAX: RS, SOAP, WSDL, UDDI, REST, Microservices, Hateos, Ribbon.

Operating Systems: Unix, Linux, Windows, Android.

Web/App Servers: JBoss 6.0, Tomcat, WebSphere, WebLogic9.x/10. x.

IDEs: Eclipse, Spring Tools Suite, NetBeans, IntelliJ.

Methodologies: Waterfall, Iterative, Agile, Test Driven Development (TDD), BDD, OOAD, SDLC.

Version Control Systems: CVS, SVN, GitHub, Clearcase, CVS, SubVersion, WinCVS, TortoiseCVS, CVSNT.

Configuration Management Tools: Chef, Ansible, Puppet, Salt

Build Tools: ANT, Maven, JENKINS.

Mark up Languages: HTML5, CSS3, Typescript, DHTML, XHTML, XML, XSLT.

PROFESSIONAL EXPERIENCE:

Confidential, New York

Senior Full Stack Developer

Responsibilities:

• Developed the J2EE application based on the Service Oriented Architecture.
• Developed the functionalities using Agile Methodology and used Test-driven development (TDD) in software development process.
• Involved in collecting requirements from business users and designing and developing tools using J2EE, Servlets, EJB and JSP. Developed various generic JavaScript functions used for validations.
• Developed the applications presentation layer in UI development with technologies like HTML 5, PHP, CSS3, Java Script, Angular JS and JQuery. Designed and developed Microservices using REST framework and Spring Boot.
• Used Singleton design pattern for web application. Used Interfaces and abstract method concepts.
• Used iBatis Transaction Management, iBatis Batch Transactions and iBatis cache concepts.
• Created session EJBs that retrieved information from the Oracle database using Spring-iBATIS.
• Used Angular JS and Node JS to structure JavaScript code in an MVC (Model, View, and Controller). Used Angular JS, D3JS to build a single-page application and using angular JS 2.0, we created custom directives for re-usable components (multi-field form elements, background file uploads, etc.)
• Created the Node.js EXPRESS Server combined with Socket.io to build MVC framework from front-end side AngularJS to back-end MongoDB. Build REST web service by building Node.js Server in the back-end to handle requests sent from the front-end jQuery Ajax calls.
• Moved existing AngularJS controllers and services to Angular 2 components for more responsive and less dependency.
• Enhanced legacy application by building new components in Angular 2 and typescript.
• Very good experience with NgRx store architecture and Used NgRx to Manage State in Angular Applications.
• Implemented request and response objects using SOAP web services and created routes using Apache Camel.
• Working experience in using Selenium IDE, Selenium RC and Selenium webdriver using Java for developing automation scripts in Eclipse IDE and Used Eclipse IDE for developing automation scripts.
• Worked as part of Microservices team to develop and deliver Maven projects to deploy on Kubernetes using Docker.
• Developed PL/SQL Stored Procedures, Triggers, and Queries for Payment release process and authorization process.
• Implemented Microservices architecture with Netflix Eureka, Ribbon using Spring Boot for making different application smaller and independent.
• Used the Web logic JMS, Tibco EMS Server Messaging system to enable Applications to communicate with one another through the exchange of Messages. Integrated Java module with TIBCO Business Works processes.
• Implemented Persistence layer using Hibernate ORM to interact with the Oracle database, Used Hibernate Framework for Enterprise Eligibility business objects and domain objects with object relational mapping.
• Used Exception handling concepts for handling exceptions. Worked on ISO parser tool with Pivotal Cloud Foundry (PCF).
• Had good working experience with File Handling, Data structures, algorithms and Collections.
• I used various services of AWS for this infrastructure. I used EC2 as virtual servers to host Git, Jenkins and configuration management tool like ansible. Converted slow and manual procedures to dynamic API generated procedures.
• Used Eureka for service discovery, Ribbon client-side load balancer, Circuit Breaker Pattern using Hystrix, Config Server for properties, Redis for Caching and exploring spring data flow.
• Worked on Spring Cloud Netflix - Eureka for discovery, Reddis for caching and Used Spring Security to provide authentication. Worked with a variety of issues involving multithreading, server connectivity and user interface.
• Experienced in using Java concurrency APIs like Executor Services to implement multithreading
• Involved in the development of front end of the application using Python 2.7, Unix/Linux, HTML5, CSS3, EMBER.JS, TYPESCRIPT, AJAX, JSON and JQuery and worked on backend of the application, mainly using Active Records.
• Wrote a Python module to connect and view the status of an Apache Cassandra instance.
• Implemented SOA to develop Web services using Apache Axis and developed Web Services clients to consume those Web Services as well other enterprise wide Web Services to the client applications by sharing the WSDL’s.
• Used Microservices for distributing different responsibilities of the system into different services for enhancing cohesion and for decreasing coupling. Working on Big Data Integration and Analytics based on Hadoop, SOLR, Spark, Kafka, Storm and web Methods technologies.
• Writing Docker files with best practices along with Docker linting, Docker container management along with volumes, container based DB and services, Docker Artifactory (Jfrog) configuration and setup. Currently working on Docker container implementation for the Enterprise build system.
• Developed RESTful Web Service using Spring Boot and deployed to pivotal webServices. I have successfully integrated tools with LDAP authentication and SSL communication.
• Implemented a centralized logging system using logstash configured as an ELK stack (Elasticsearch, Logstash, and Kibana). This allowed us to gather and visualize an average of 500,000 logs per ten minutes from our production systems. Build an ELK stack for MySQL monitoring and provides real-time log analytics service for other 4 systems.
• Experience working with data manipulation language, SQL which is used to retrieve and manipulate data in a relational database. Created logical and physical data models putting to practice, concepts of normalization and RDBMS.
• Worked closely with QA team and fixed QA bugs as well as production issues with a quick turnaround time.
• Implemented an Agile development work flow for continuous integration deployment, automating build testing of applications using Redmine, Maven, Jenkins and Subversion in a collaborative environment using tools like GitHub.
• Involved in code deploy a multitude application utilizing AWS stack (EC2, Route53, S3, RDS, Dynamo DB, Cognito, SNS, SQS, IAM) and support Memcache-AWS ElastiCache focus on high-availability, fault tolerance, and auto- scaling.
• Experience in developing integration with Elastic search into programming languages like Java and JavaScript.
• Worked closely with Microsoft Azure Sales and consulting team to formulate the sales strategy, position Microsoft technology solutions, as well as overall account/pipeline management.
• Used Elastic search as the data indexer and query parser and utilized NOSQL for nonrelation data storage and retrieval.
• Used Java script and AJAX to query the Elastic search indices, format and display the JSON results in a web page.
• Develop POCs using Scala and deployed on the Yarn cluster, compared the performance of Spark, with Hive and SQL/Teradata. Involved in converting Hive/SQL queries into Spark transformations using Spark RDDs and Scala.
• Used Java 8.0 features like Lambda Expressions with Dynamo DB, Cognito and Redshift, Lambda, AWS Lambda.
• Deployed micro services as restful Java Web Services on Amazon Elastic Beanstalk and good understanding of data ingestion/processing in cloud (AWS pipeline).
• Used Kinesis for Complex stream processing, Real-time data analytics, aggregation of data and loaded the aggregated data into a map-reduce cluster.
• Creating React.js / Flux / Redux front-end UI, and Node.js applications for backend. Used React.js library and Sass to build out reusable components to create a fully responsive UI layout, Used Log4j utility to generate run-time logs. and mentoring JavaScript developers in React/Redux development.
• Used Python and Django to interface with the jQuery UI and manage the storage and deletion of content.

Environment: JAVA 8/ J2EE, Spring 3.1, MVC, Junit 4.11, iBatis, JSP 2.0, AJAX, SOAP, XML, Golang, Python, React, Redux, EJB 3.2, XStream, Docker, IBM WebSphere 7, UNIX, WebLogic 10.3, OAuth 2.0, Tomcat 6.0, ELK Stack, Ember.js, CURL, Core Java, NGinx, Ext JS, JQuery, ANGULAR 2.0, JavaScript, Oracle 10g, IntelliJ 7.x, IBM RAD, Kubernetes, Design Patterns, CVS, Apache Maven 2.5.1, Camel, SCALA, Html5, PHP, TypeScript 2.1, XSLT, HTML/DHTML, httpclient 4.3.4

Confidential, MO

Sr. Full Stack Java Developer

Responsibilities:

• Involved in Daily Scrum meetings, Sprint planning and estimation of the tasks for the user stories.
• Gathered and clarified requirements with business analyst to feed into high-level customization design, development and installation phases. Involved in development of Agent Verification System using Spring MVC framework.
• Used Design Patterns like Singleton, Factory, MVC, Front Controller, Service Locator, and Session Façade.
• Involved in the front end using JSP, JSTL, JQuery UI, Servlets, HTML, PHP, JavaScript, AJAX and Backbone.
• Developed the web application by using PrimeFaces employing AJAX at client -side components which enable rich content in GUIs. AngularJS framework for page rendering and Ajax calls to backend RESTful services.
• Developed and implemented Swing, spring, ESB Mule and J2EE based MVC (Model-View- Controller) framework for the application. Working Knowledge of ORM library like SQLAlchemy.
• Created Mule ESB based Tooling suite for handling message transitioning, validation, enrichment and routing to Upstream and Downstream entity data consumers. Developing traits and case classes etc. in Scala.
• Involved in converting Hive/SQL queries into Spark transformations using Spark RDD, Scala Developing business logic using Scala. Involved in performing the Linear Regression using Scala API and Spark.
• Scala pattern matching, tail recursion, folding concepts to reduce unnecessary loops and lines of codes
• Extensively used Hibernate mappings, HQL, EHCache, Query, Criteria, Lazy loading and Lockings.
• Spring AOP is used for logging, auditing, transaction management to distinguish business logic from the cross cutting concerns. Developed Batch Rescore Tool to rescore multiple claims using Multi-threading.
• Proficient in Object-Oriented Develop and integration of complex enterprise web based apps using IDEs like Eclipse, RAD, IntelliJ IDEA and NetBeans. Deployment of API and Application in Azure Cloud APP’s using UNIX platform.
• Developed adapters to retrieve data from cloud application using REST, SOAP Web Services and security protocols WS Security, OAuth 2.0. Worked on spring modules like DI, AOP and Spring Mail, Spring JMS and Spring Security.
• Used Spring Data Mongo DB as the persistence framework in retrieving the user and medical benefits details from Mongo DB. Used Collections concepts for storing group of objects.
• Developed application in IntelliJ IDEA and Deployed in WebSphere Application Server 8.5.5.
• Developed Processes in TIBCO Business Works for transforming the data to/ from XML and proprietary formats.
• Extensively work both on Ember.js mobile site and Rails desktop site during a time of growth from 200,000 users to more than 1 million. Used jQuery to make the application highly interactive and used JSON objects for efficient coding.
• UI development with technologies like HTML 5, Angular JS and Jquery. Web application development for backend system using AngularJS and NodeJS with cutting edge.
• Developed GUI using JavaScript, HTML/HTML5, DOM, XHTML, AJAX, CSS3 Built Web pages that are more user- interactive using JQuery plugins for Drag and Drop, AutoComplete, AJAX, JSON, and JavaScript, Bootstrap.
• Used Spring JMS to post and consume the messages from the IBM MQ Server.
• Set up, configured, and maintained multiple web/application servers like Apache Tomcat and Play.
• Involved in Design and deliver of key features of web products, driving rapid iterations while keeping an eye on scale by handling massive and multiple streams of data at once, using technologies like AKKA, Play concepts.
• Extensively used hibernate named queries, criteria queries, HQL and Optimistic Locking and Caching to process the data from the database. Used JIRA tool for tracking stories progress and follow agile methodology.
• Implemented spring batch application for data migration from DB2 to Mongo DB with no data integrity trade off and better performance API. Used Ant/Maven tools for building and deploying the Web applications.
• Used EC2 for virtual servers and provisioned git, Jenkins, configuration management tool like chef on each server.
• Created AWS instance, deployed application using chef recipes and delivered QA teams to initiate performance testing. Setting up client server model of chef in dev environment.
• Responsible for design of WSDL files and schemas. Designed and hosted SOAP based Web Services.
• Implemented Quartz jobs for running the batch jobs configured in the Spring files.
• Wrote Restful web services to communicate with Mongo DB and performed CRUD operations on Mongo DB using restful web services. Used MongoDB as a NoSQL for storing JSON data.
• Have developed Jmeter scripts to evaluate the mongo db performance through JAX-RS REST services.
• Responsible for continuous monitoring and managing Elastic Map Reduce cluster through AWS console.
• Log4j, MQ Series, SOAP web services with Apache CXF 2.3/ JAX-RPC/ JAX-WS, JSON Rest Webservice.
• Developed Unit /Integration test cases using Junit, Easy Mock, Mockito and Selenium tools.

Environment: Spring 4.0.6, SpringBoot 1.1.5 Hibernate, Web services, AWS, JQuery, JSP, Backbone JS, AJAX, Java Script, Jenkins, Web Sphere 8.5, Scala, Play, AKKA, UNIX, Angular 1.6, Docker, Intellij, IBM MQ, GOlang NoSQL, Mockito, Spring MQ, Spring MVC, SOAP UI, PrimeFaces, CoreJava, JAXB, WSDL, JBPM 4.x, Scala, XSD, AWS, Cognito, XML, XML Spy, BRMS, SQL, BizTalk Server 2010, Visual Studio 2010, DB2, SQL Server 2010, MS Visio, Eclipse, WinSQL, Squirrel SQL, TDD.

Confidential, Milwaukee, WI

Sr. Java/J2EE Developer

Responsibilities:

• Designed the application using the J2EE design patterns such as Session Façade, Business Delegate, Service Locator, Value Object, Value List Handler, and Singleton.
• Developed Use case diagrams, Object diagrams, Class diagrams, and Sequence diagrams using UML.
• Developed presentation tier as HTML, JSPs using Struts Framework. Developed the middle tier using EJBs.
• Enhanced an existing Java microservice to retrieve specific customers for a store location based on the user IDs provided. Configured SSL/TLS and LDAP SSO. Developed session, entity beans and message driven beans.
• Entity Beans used for accessing data from the SQL Server database. jQuery opinionated about how a CRUD (Create, Read, Update, Delete) application should be built.
• Prepared high and low-level design documents for the business modules for future s and updates.
• Deployed the application on WebSphere application server in development and production environment.
• Undertook the Integration and testing of the various parts of the application.
• Developed automated Build files using ANT.
• Used Subversion for version control and log4j for logging errors. Code Walkthrough, Test cases and Test Plans.
• Developing code using a development environment including Java, Eclipse, Firefox
• Created test cases based on the functional requirements, developed the test suite framework to test the UI functionality.
• Providing a responsive, AJAX-driven design and created web application prototype using JavaScript libraries such as jQuery and Bootstrap.js
• Developed the User Interface Screens for presentation logic using JSP, CSS, and HTML client validation scripts.
• Used GIT and BitBucket as version control system for the source code and project documents.
• Applying Multithreading techniques for creating high performance applications.
• Worked on supporting the existing systems by performing root cause analysis and bug fixes.
• Automated and performed testing using Junit to test the server-side APIs.
• Involved in Testing and Deploying application in Tomcat and JBoss application server.
• Configured and used Log4J for logging all the debugging and error information.
• Performed unit, integration and acceptance testing using JUNIT framework and selenium.

Environment: Java, GWT, Hibernate, spring, Google Cloud, ANT, Log4J, EJB, UML, WSDL, JQuery, JAXB, SOAP, REST, AJAX, HTML5, JSON, JavaScript, CSS, JSP, Web Services, MySQL, SQL, Sublime.

Confidential, Indianapolis, IN

Sr. Java Developer

Responsibilities:

• Attending various s sessions such as OOAD, programming principles, C++, Java, HTML, XML, web-services etc. as trainee.
• Involved in Requirement gathering, Analysis, Preparing Functional Specifications, and Technical
• Designed and development applications using Rational Unified Process (RUP), UML and OOAD.
• Designed and developed the UI using Struts view component HTML, CSS, JSP, JavaScript, AJAX, and JSON.
• Used XML/XSLT for transforming common XML format and SAML for Single Sign-On.
• The application uses the HTTP protocol to retrieve XML documents.
• Used XML Http Request Object to provide asynchronous communication as part of AJAX implementation
• Extensively used MVC, Factory, Delegate and Singleton design patterns.
• Used Spring Framework AOP Module to implement logging in the application to know the application status.
• Spring MVC Framework IOC (Inversion of Control) design pattern is used to have relationships between application components. It is also used to separate the application configuration and dependency specification from the actual application code
• Used JDBC-API to communicate with Database.
• Currently using LOG4J, JUNIT, and Mantis for debugging, testing, and maintaining the system state.
• Developed Session Beans for maintaining state of the user sessions.
• Designed and developed the session module using J2EE for existing cold fusion application.
• Written database stored procedures and triggers for data manipulation.
• Administration of IBM Web Sphere 5.0.
• Analyzed customer requirements for enhancements and designed User Interface using HTML and java script.
• Used SOAP for Web Services by exchanging XML data between applications over HTTP.
• Developed ANT build scripts to build and deploy application in enterprise archive format (EAR).

Environment: Java, J2EE, Servlet’s, Log4J, SpringMVC, JSON, JSP, XML, XSLT, DOM, HTML, CSS, AJAX JavaScript, PL/SQL, JDBC, SOAP, ANT, Eclipse Plug-ins, IBM Web Sphere.

Confidential, Jacksonville, Florida

Jr. Java Developer

Responsibilities:

• Involved in Analysis, Design, Coding and Development of custom Interfaces.
• Involved in requirements gathering and analysis from the existing system. Captured requirements using Use Cases and Sequence Diagrams.
• Developed the application using Struts, Servlets and JSP for the presentation layer along with JavaScript for the client-side validations.
• Developed the web application using JSF framework with user interfaces using JSP, HTML, and CSS. Also, used JSF validation framework for front-end validations.
• Worked with Struts components such as Action Mapping, Action class, Dispatch action class, Action Form bean.
• Responsible for building scalable distributed data solutions using Datastax Cassandra.
• Used core java to design application modules, base classes and utility classes.
• Implemented DAO layer using IBATIS and wrote queries for persisting demand core banking related information from the backend system using Query tool
• Implemented Multi-threaded/Concurrent mechanisms for improve the performance.
• Developed web based presentation using JSP and Servlet technologies and implemented MVC pattern using STRUTSframework.
• Experience in developing the UNIX Shell Scripts and PERL Scripts to execute the scripts and manipulate files and directory.
• Developed a code for Web services using XML, SOAP and used SOAP UI tool for testing the services.
• Involved in the development of SOAP and WSDL files for the web services interacting with business Logic.
• Java Server Faces (JSF) for building component-based user interface.
• Involved in planning process of iterations under the Agile Scrum methodology.
• Used Log4J for logging the user events.
• Maven for compilation and building JAR, WAR and EAR files.
• Used JUnit for unit testing and Continuum for integration testing.

Environment: HTML, CSS, jQuery, AJAX, JSP, UNIX Shell Scripts, SOAP web services, JUnit, Multi-threading, iBATIS, Core Java, Cassandra.