SUMMARY

• Over 8+ years of experience in development and implementation of Web - based Client-Server applications using Java and J2EE technologies.
• Working knowledge in multi-tiered distributed environment, OOAD concepts, good understanding of Software Development Lifecycle (SDLC) and familiarity of Service Oriented Architecture (SOA).
• Proficient in OOAD Technologies developing Use Cases, Activity diagrams, Sequence Diagrams and Class diagrams using case tools like Microsoft Visio and Rational Rose.
• Experience in developing Web based GUI’s using JSP, HTML, DHTML, CSS, JavaScript (and its frameworks like JSON), Action Script, DOJO, Node JS, Angular JS, JQuery, EXT JS and Ajax.
• Used JavaScript for client side validations and implemented AJAX with JavaScript for reducing data transfer overhead between user and server.
• Expertise in application development using JSP, Servlets, JDBC, JNDI, Spring, Hibernate, JSF, EJB2.0/3.0, XML, Web Services- SOAP, WSDL.
• Expertise in XML and related technologies like XSL, XSLT, XPATH and parsers like JAXP (SAX, DOM) and JAXB.
• Experience programming inthe JBOSS Enterprise SOA environmentincluding JBOSS Workflow and DroolsBusiness Rules engine.
• Hands on experience on major components in Hadoop Ecosystem like Hadoop Map Reduce, HDFS, HIVE, PIG, Pentaho,HBase, Sqoop, Oozie and Flume.
• Experience with Oozie Workflow Engine in running workflow jobs with actions that run Hadoop Map/Reduce and Pig jobs.
• Experience in working with the NoSQL, Mongo DB, Apache Cassandra
• Good Knowledge of using IDE Tools like Eclipse, NetBeans, JBuilder, Jasper, Rational Application Developer(RAD), Angular JS for Java/J2EE application development.
• Extensive experience in rich front-end technologies such as EXT-JS 3.0/5.x, JQuery, XHTML, CSS, JavaScript, AJAX and Tag Libraries.
• Good experience in IBM Web Sphere Application Server, JBoss and Weblogic.
• Expertise in deploying applications on IBM Web Sphere Application Server 7.0/6.0/ 5.3, BEA Weblogic 9.1/7.x, JBoss 4.0 application servers and Tomcat 5.0 web server
• Working knowledge of Unix environments, including shell scripting such as Perl or Python.
• Participated in understanding of ExtJS technologies and development tasks
• Experience in Bootstrap (responsive design), Backbone, and AngularJS frameworks
• Extensive experience in rich front-end technologies such as EXT-JS 3.0/5.x, JQuery, XHTML, CSS, JavaScript, AJAX and Tag Libraries.
• Participated in understanding of ExtJS technologies and development tasks
• Experience in Bootstrap (responsive design), Backbone, and AngularJS frameworks
• Good Knowledge of using IDE Tools like Eclipse, NetBeans, JBuilder, Jasper, Rational Application Developer(RAD), Angular JS for Java/J2EE application development
• Good experience in recognizing and reusing Design Patterns -GOF, J2EE design patterns, Architectural patterns, SOA Design Patterns, Enterprise Integration Patterns.
• Excellent implementation knowledge of Distributed Web Services/ Enterprise / Web / Client- Server systems using Java, J2EE (JSP, Servlets, JDBC, EJB, JNDI, JMS, JAXP,JAXB, SDO,JPA), XML, SOA Web services, ESB, JINI and Java Spaces Technology.
• Superior proficiency in AWT, JBoss, Hibernate, SWT and Java Swing.
• Good experience in IBM Web Sphere Application Server, JBoss and Weblogic
• Worked using IDE like Eclipse, JDeveloper, Web Sphere Application Developer WSAD, IBM RAD and Rational Software Architect.
• Knowledge and familiarity with programming of Java, SQL, XML, JavaScript, JavaScript, Camel, Flex, Spring and/or Hibernate.
• Knowledge of the following: Python, Ruby, Groovy, Scala.
• Sound skill in Swing MVC architecture, design patterns, Collections Frameworks, Exceptions handling and multi-threading.
• A very good understanding of Groovy and Grails.
• Good Knowledge of using IDE Tools like Eclipse, NetBeans, JBuilder, Jasper, Rational Application Developer(RAD), Angular JS for Java/J2EE application development
• Expertise in Server Side Programming using J2EE, Java, JSP, Servlet, MVC using Struts framework, JDBC, Swing HTML5, Java Script, EJB, Swing, SQL, PL/SQL
• Extensive experience in designing and developing Enterprise Applications for J2EE platform using Core Java, Servlets, JDBC, JSP, JSTL, Swing, Struts 2.0, Spring, Groovy-Grails, Hibernate, XML, Web services, JMS, Eclipse, RAD, Ant, Maven
• Knowledge of Client-server concepts, (3 tier architecture concepts preferred), and GUI development concepts required, experience with Flex Builder preferred.
• Knowledge of the following: Python, Ruby, Groovy, Scala.
• An in depth understanding of Scala programming language along with lift framework.
• Expertise in implementing Web services and JMS for the synchronous and asynchronous communications between two applications running in different servers.
• Expertise in designing and developing enterprise applications using J2EE technologies like EJB2.1/3.0, Struts 1.2/2.0,Spring 3.0 and 4.0, JDBC, JNDI, JMS, JAXB, SAX/DOM, Web services.
• Expertise in design patterns including Front Controller, Data Access Object, Session Facade, Business Delegate, Service Locator, MVC, Data Transfer Object and Singleton.
• Good experience in Spring modules like Spring AOP, DAD etc.
• Implementing Spring aspects for logging cross cutting concern.
• Strong working experience Object Relational (ORM) mapping tools like Hibernate (Hibernate Connection Pooling, HQL, Hibernate Caching, Transactions).
• Experienced in the functional usage and deployment of applications in JBoss, Web Logic, Web Sphere and Apache Tomcat.
• Expertise in Web Services architecture in SOAP and WSDL using JAX-RPC.
• Expertise in XML and related technologies like XSL, XSLT and parsers like JAXP (SAX, DOM) and JAXB Experience in Database Design, Creation and management of Schemas, writing Stored Procedures, functions, Triggers, DDL, DML SQL queries. Experience in writing SQL and PL/SQL programming.
• Involved in building and deploying Apache ANT/ MAVEN scripts for deployment and customizing WAR/ JAR file management for web applications.
• Well experienced in using JUnit for performing unit-testing framework.
• Extensive experience in testing on multiple operating systems including UNIX, Sun Solaris, and Windows. Experience in developing crystal reports.
• Expertise in using configuration management tool like CVS and GIT for version controlling.
• Expert in Various Agile methodologies like SCRUM, Test Driven Development, Incremental and Iteration methodology and Pair Programming as well as implementing Waterfall model.
• Experience in version control tools like CVS, SVN and AccuRev to manage and control software development.
• Highly motivated team player with strong communication, analytical, documentation and organizational skills.

TECHNICAL SKILLS

J2SE Technology: Multithreading, Reflections, Collections, Serialization, Networking, Beans

Middleware Technology: JMS, MQ Messaging, Tibco, Solace, Active MQ

J2EE Technology: Servlets, JSP, Tag Libraries, JDBC, JNDI

Architecture & Framework: MVC, Struts, Spring, Hibernate, OSGI

Database: Oracle 10g, 11g, SQL server 2005/2008, MySQL

IDE: Eclipse, My Eclipse, NetBeans

Operating Systems: Windows 9x/NT/XP/2003/7/8, Linux, UNIX

Web/App Servers: WebLogic, Web Sphere, Tomcat, JBoss, Apache

GUI: HTML5, XML, XSD, AJAX, JavaScript, Node.js, Angular JS, JQuery, CSS3

Query Languages: SQL, PL/SQL

Programming Language: C, C++, Java, J2EE

Script: PHP, Shell

Design patterns: MVC3, Business Delegate, Business Object, Value Object, Front Controller, Database Access Object, Factory, Singleton, Session Facade.

Tools: Maven, ANT, Log4J, JUnit, TOAD, SoapUI 4.0.5, JUnit, Rational Rose, Visio

PROFESSIONAL EXPERIENCE

Confidential, Sacramento, CA

Sr. Developer

Responsibilities:

• Converting business requirements into technical design and developed the system as per the technical specifications.
• Following agile methodology, an iterative development for the project and participating in code reviews.
• Developed various DOA’s in the applications using Spring JDBC support and fetch, insert, update and deleted data into the database table.
• Worked with AWS Cloud management and Chef Automation.
• Developed various API’s to communicate with Solr search engine and integrated Solr search engine in Web store.
• Implemented MVC architecture using JSF framework using JSPs as GUI development and DB Modeling using Oracle 10g.
• Used MyBatis & IBatis persistence framework to provide support for custom SQL, stored procedures and mappings.
• Developed various GWT customized widgets, services and DAO classes for the above systems using servlets, Core Java and GWT RPC/Ajax calls.
• Worked on converting the PSD to a pixel perfect XHTML page using CSS3 and HTML5.
• Used State management supporting like request, application, session, flash and view scoped java beans.
• Developed tools using Python, Shell scripting, XML to automate some of the menial tasks.
• Implemented the application specific SOAP based Web services to transfer data in real-time between EXPERE document engine, Teamwork’s BPM tool and other legacy systems by utilizing WSDL, SOAP, Axis and JMS technologies.
• Able to dig into unfamiliar codebases in order to understand bugs and solve problems using Golang.
• Experience in developing web based GUIs using Angular JS and JSP, HTML, and JavaScript.
• Designed and developed Asynchronous service on Amazon AWS using SNS/SQS.Created Business Logic usingPython to create Planning and Tracking functions
• Developed stored procedures, functions, SQL, NOSQL queries and backend programs using Oracle database and tools such as TOAD and SQL developer.
• Used Stash code versioning system for code maintenance and used Log4j to generate logs used for maintenance and bug tracking
• Developed EJB Components, which encapsulate business logic and build up the model for the system.
• Implemented various J2EE design patterns like DAO pattern, Business Delegate, Value Object.
• Developed Java Helper classes for updating Customer Accounts and Customer information.
• Configured and deployed the application in IBM WebSphere application server.
• Build, Merged, Configured and deployed the code in Weblogic Server of DEV Environment, TI and Staging Environment.
• Logged issues and bugs with Jira, created and participated in code reviews using Crucible 2.0/3.0
• Experienced best practices for integrating microservicesinto an existing system architecture.
• Deployed J2EE Web and EJB modules using WebLogic Command Line Deploy tool and WebLogic Admin Console.
• Tuned TCP/IP, JVMs, JVM heap size, garbage collections and Native thread’s.
• Developed presentation layer using HTML, CSS and Javascript.
• Worked with a variety of issues involving multi-threading, server connectivity and user interface.

Environment: Java, J2EE, HTML, CSS, JavaScript, XML, JSP, Angular JS, Servlets, Spring, Struts, Jasper Report, Hibernate, Web services, SQL, BPM, Oracle, Golang, GWT, Stash, AWS, bamboo, cucumber, Microservices, Eclipse, GIT, Jenkins, Maven, Log4j, JUnit, WebLogic 10.X, IBM WebSphere Application Server, JIRA, Clearcase.

Confidential, Chicago, IL

Sr. Java/J2EE Developer

Responsibilities:

• Designed use cases for the Application as per the business requirements.
• Participated in requirement gathering and framework implementation sessions through Agile TDD methodology.
• Experienced developing againstSOLRSearch Platform APIs
• Developed and deployed solution using several new technologies, including Linux - Ubuntu, Drupal and ApacheSOLR.
• Subject matter expert in enterprise search engine analysis, design, development and systems integration. Search engines include Autonomy IDOL Server, MOSS 2007, Endeca, Lucene/Solrand Microsoft FAST 2010 for SharePoint 2010, SharePoint 2013
• Experience with Python, Hadoop, MongoDB.
• Compelling Big Data architectural solutions using Hadoop's HDFS,HBaseor Hive, MapReduce, and Sqoop to resolve velocity, variety, and volume issues inherent in petabyte Big Data implementations.
• Experience on scripting (e.g. Bash, Powershell, Perl, Ruby, Python).
• Working with authors from software professionals to professors and students, helping them to create entertaining and meaningful content about the Groovy and Javascript programming languages for monthly publication.
• User help tooltips implemented withDojoTooltip Widget with multiple custom colors
• UI Layer implemented with Struts, Struts validation, Struts Tiles, JSP, XML, CSS, XHTML, JavaScript,DOJO, AJAX
• Tooltips implemented withDOJOFramework.
• Leveraging Groovy scripting to provide a dynamically extensible environment.
• Created and presented training materials surrounding adoption of the Groovy language.
• Writing GSPs for different applications written in Grails. Writing controllers for V-connect platform (an online campaign platform) in grails.
• Design/implementation of build/deployment processes (Maven, Grails, Gradle, Jenkins integration).
• Customization of the Grails layer for specific requirements or troubleshooting issues.
• Web Application development: For web application development, I have experience with Grails- Groovy on Rails. I am a master of this wonderful framework developed to make java development really easy and rapid. My role in past projects on grails includes implementation of Restful web services for sql/nosql databases as well as overall application design/development right from the inception to transition/deployment.
• Worked closely with the Business/Users team in translating technical requirements into application code
• Developed web layer using Struts framework to manage the project in MVC pattern.
• Implemented integration of Struts Action classes in Presentation Tier
• Used Struts Tiles Framework for designing the layout of the application.
• Client pages are built using HTML, CSS, JSP, javascript/JQuery.
• Responsible for the overall layout design that meet cross-device compatibility using Bootstrap, color scheme of the web site using HTML5, and CSS3 and Responsible for creating detailed wire frames and process flows
• Designed dynamic and multi-browser compatible pages using HTML5, CSS3, JQuery and JavaScript
• Developed mobile site for marketing campaigns by using jQuerymobile, Backbone.js
• Involved in the creation of interface to manage user menu and Bulk update of Attributes using JS, EXTJS and JQuery.
• Developed patching, cloning and backup strategy for Oracle E-business R12(12.1.3) on Amazon EC2 Cloud and Appko Cloud.
• Developed strategy for cloud/virtualization migration and implementation best practices
• Involved in building security model, VPC, Elastic IP for databases on Cloud platform.
• Experienced in building private, public and community clouds for Oracle applications
• Architect and deploy Symantec public/private cloud platforms (IaaS, PaaS & SaaS) across Amazon Web Services, Terremark, HP Cloud Services, DataPipe, Google Compute Engine, CloudStack and Rackspace
• Experience on working with CSS Background, CSS Layouts, CSS positioning, CSS text, CSS border, CSS margin, CSS padding, CSS table, Pseudo classes, Pseudo elements and CSS behaviours in CSS.
• Developed and delivered SOAP based Web Servicesfor our new clients used Apache-CXF and SOAP UI to test the services
• Developed Middleware application using SOA focused to integrate 2 end systems Siebel and Agile through messaging system JMS and an UI was built on top of it to track the transactions between the systems and to repost the failed transactions
• Developed Web Applications with rich UI using CSS, JavaScript, Ajax, jQuery plugins and Struts 2 framework
• Developed a rich and interactive UI using EXT-JSand implementedWeb 2.0 features with Auto completion feature, Drag and Drop functionalities using widgets and AJAX framework
• Extensively used Core Java such as Exceptions, and Collections
• Used JSTL and developed required tiles and tile definitions for templating and defined configuration in the struts configuration.xml.
• Resolve Micros xStore issues, restore databases, re-image and replace devices Processing data ingestion and entity resolution using Hadoop and Pig.
• Applied Hadoop MapReduce to reduce processing time from two weeks per year of data to one day.
• Responsible for creation and delivery of one of three world's commercial BigData distributions based on Apache Hadoop 2.0
• Developed helper classes, delegate classes, value objects to access business tier and transfer the information from business layer to the presentation layer.
• Developed business layer using EJB stateless session beans and deployed on the Application server (Web logic).
• Developed SOA, software apps and web service solutions using Oracle OSB 11g
• Implemented SOA solutions and business processes by using BPEL
• Worked within SOA based enterprise framework to build web services.
• Created Composite Applications, Home Security components and Adapters by using Oracle SOA technology.
• Used JDeveloper 11g to develop Java, ADF, BPM and SOA applications.
• Developed business process execution language processes and deployed them using Oracle SOA Suite 11g.
• Developed Reference Architecture for eComm SOA Environment
• Introduced SOA Governance framework at Clearwire's massive eComm group including governance policies with scope for evolution
• Architected services to align with business objectives and fit into overall SOA driven program
• Participated and drove SOA governance
• Designed and Coded the Java Swing pagination component.
• The GUI was designed on the base of MVC design-patterns and Swing APIs are used extensively.
• Wrote JNLP 's for client side download of swing application and used signature certificates for security.
• Extensively involved in the development of the Agent module, which involved multi-threading and GUI for this product, which was developed in Swing.
• Used Hibernate as persistence framework for DAO layer to access the Oracle10g database.
• Produced SOAP web services using Metro JAX-WS RI for building the business application layer.
• Performed Tuning, Load Balancing and optimization ofWebLogic Application Server
• Defined XML documents for input and output sources of Web Services. Created schema documents for XML validation and developed XML schemes
• Used Maven for build framework and Jenkins for continuous build system
• Worked on Eclipse for development and deployment of application in Web Logic Application Server.
• Responsible for coding, testing and documenting various packages, procedures, and functions for libraries.
• Proficient in using SVN for Version Control.
• Actively involved in code reviews and also in bug fixing.

Environment: Java, JSP, JavaScript, Ajax, JQuery, Ant, Struts, POS, DOJO, Drools, Hbase, Solr, Marklogic, Spring, MICROS, Hibernate, RSA, WebSphere Application Server, DB2, XML, LDAP, Accurev, JUnit, XSTORE, XPATH, Windows2000.

Confidential

Sr. Java/J2EE Developer

Responsibilities:

• Actively participated in meetings with Business Analysts and Architects to identify the scope, requirements and architecture of the project.
• Ensured Service design fits into overall SOA driven program
• Worked on research team that developed Scala, a programming language with full Java interoperability and a strong type system.
• Improved stability and performance of the Scala plugin for Eclipse, using product feedback from customers and internal users.
• Redesigned and implemented Scala REPL (read-evaluate-print-loop) to tightly integrate with other IDE features in Eclipse.
• Experience working with Flex, Flash and SilverLight embedded objects
• Experience with Internet Application Development such as HTML5, FLEX CSS3
• SPRING, IBATIS/HIBERNATE AND FLEX REQUIRED
• Project will involve multiple technologies - Adobe Flex, JavaScript, J2EE (WebSphere), Oracle and GIS technologies.
• Developed applications using latest technologies like EJB3.0, Spring2.0, Hibernate3.2 (using annotations), and REST based Webservices (axis2.0, JAX WS 2.0), Rule Engines (Drools4.1, ILOG, BLAZE), XML API and tools.
• Developed Applications using Rule Engines, Drools, ILOG, BLAZE.
• Designed and implemented business rules usingDROOLSframework. This involved translating the business requirements and translating to rules and integrating rules engine with existing web application
• Developed GIS based Web applications with ArcGIS API for JavaScript and Flex along with Dojo.
• Performed formal usability study on Scaladoc; improved layout and design to improve clarity; showed that study results can be applied to similar languages.
• Generating scala and java classes from the respective APIs so that they can be incorporated in the overall application.
• Writing entities in Scala and Java along with named queries to interact with database.
• Writing user console page in lift along with the snippets in Scala. The product is responsible to give access to the user to all their credentials and privileges within the system
• Writing scala classes to interact with the database.
• Writing scala test cases to test scala written code
• Followed MVC model and used spring frameworks for developing the Web layer of the application.
• Developed application using Spring MVC, JSP, JSTL and AJAX on the presentation layer, the business layer is built using spring and the persistent layer uses Hibernate.
• Developed User Interface and web page screens for various modules using JSF, JavaScript, and AJAX using RAD.
• Data Operations are performed using Spring ORM wiring with Hibernate and Implemented Hibernate Template and criteria API for Querying database.
• Developed interfaces and their implementation classes to communicate with the mid-tier (services) using JMS.
• Extensively used JavaScript to provide dynamic User Interface and for the client side validations.
• Used AJAX framework for asynchronous data transfer between the browser and the server.
• Extensively usedJavaMulti-Threading concept for downloading files from a URL.
• Used J2EE design patterns like Front Controller, MVC, Business Delegate and Session Facade.
• Write front end code for developing new pages using HTML, CSS, JavaScript, and JQuery.
• Involved in preparing Ant builds scripts (XML based), deployments, integration and configuration management of the entire application modules.
• Used spring, Hibernate module as an Object Relational mapping tool for back end operations over SQL database.
• Developed the business components using EJB Session Beans.
• Involved in Database design for new modules and developed the persistence layer based on Hibernate.
• Implemented the J2EE design patterns Data Access Object (DAO), Session Façade and Business Delegate.
• Developed unit test cases using JUnit and Log4j for logging.

Environment:Java, J2EE, spring, Hibernate, JSP, Eclipse 3.3, WebLogic, Maven, JUnit, CVS, CSS, HTML, XML, XSD, JavaScript, Oracle10g and Windows2007

Confidential

Sr. Java Developer

Responsibilities:

• Implemented the project according to the Software Development Life Cycle (SDLC)
• Developed the web layer using Spring MVC framework.
• Implemented JDBC for mapping an object-oriented domain model to a traditional relational database.
• Created Stored Procedures to manipulate the database and to apply the business logic according to the user's specifications.
• Involved in analyzing, designing, implementing and testing of the project.
• Developed UML diagrams like Use cases and Sequence diagrams as per requirement.
• Developed the Generic Classes, which includes the frequently used functionality, for reusability.
• Exception Management mechanism using Exception Handling Application Blocks to handle the exceptions.
• Designed and implemented the application's configuration system, includingSwing based GUI.
• Experience with Oracle's ATG 10.x BCC pricing components - especially the Flex UI
• Experience on scripting (e.g. Bash, Powershell, Perl, Ruby, Python)
• Expertise in web front-end technologies such as, Javascript, Ajax, JSF, CSS, HTML and/or Flex and developing browser compatible applications
• Experience building Adobe Flex or Adobe Air applications with ActionScript
• Worked on a code generation framework that generated Java Swing code from XML
• For Presentation side used technologies core java, SWINGS and Custom framework of FedEX (OMNI).
• Designed and developed user interfaces using JSP, Java script, HTML and Struts framework.
• Involved in Database design and developing SQL Queries, stored procedures on MySQL.
• Developed Action Forms and Action Classes in Struts frame work.
• Developed and maintained front end applications and web applications for ecommerce.
• Programmed session and entity EJBs to handle user info track and profile based transactions.
• Involved in writing JUnit test cases, unit and integration testing of the application.
• Developed user and technical documentation.
• Designed and implemented the application's configuration system, includingSwing based GUI.
• Involved in creation of GUI using Java Swing

Environment: JAVA, Java Script, HTML, JDBC Drivers, Soap Web Services, UNIX, Shell scripting, SQL Server

Confidential

Junior Java Developer

Responsibilities:

• Developing End-User friendly GUI using JSP, HTML, DHTML, Javascript & CSS
• Implemented MVC design pattern using Servlets, Java Beans and JSP.
• Used various Core Java collections framework (JDK1.5) to build up application
• Applied OO Programming concepts like Polymorphism and Inheritance to improve the existing Java/JEE based code base. Applied design patterns like Factory pattern, Singelton and DAO effectively.
• Involved in maintenance and enhancement of the application
• Implemented AJAX calls using JQUERY for dynamic and interactive, data retrieval and Messaging in JSON.
• Implemented CSS Manipulation, HTML Event functions, Java script Effects and animations using JQUERY.
• Developing Batch framework using java executor framework for processing the offline records using the entity model.
• Writing complex & cross browser Javascript to validate the web pages
• Analyzed and documented the business requirements of the customer
• Prepared Junit test cases for the application
• Developing the front end application to process the online requests.
• Implemented client side validations and identifying the data changes using JavaScript, jQuery.
• Used Spring JDBC interact with the database in DAO layer.
• ANT tool has been used in the UNIX environment to build the applications.
• Prepared auto deployment scripts for weblogic10.3 in UNIX environment.
• Using JUnit, Wrote unit test cases to test various services and their capabilities and limitations.
• Worked on existing oracle stored procedures to improve the performance.

Environment: JDK 1.5, JSP, Web Logic, JDBC,Spring, XML, DOM, SAX, XSLT, CSS, HTML, JNDI, Web Services, WSDL, SOAP, RAD, SQL, JavaScript, DHTML, XHTML, Oracle1g, Toad, Log4j, ANT, Clear Case, UNIX.