SUMMARY

• Accomplished Java/J2EE/UI Developer with 8+ years of experience in full SDLC development involving requirement analysis, design, development, testing, documentation, implementation & maintenance of Java/J2EE applications in Web - based/Enterprise environment and Distributed n-tier architecture.
• Strong working experience in SDLC methodologies like Agile, RUP (Rational unified Process),
• Extensive Experience on different frameworks like Struts 2.3/1.2/1.1, Spring 4.0/3.2.5/3.1/2.5 , and Hibernate 4.1.9/3.5.0/3.0/2.0
• Application development experience using multithreading, Serialization, Externalization, Collection framework, Generics, Core JAVA.
• Extensive experience of working on all tiers of J2EE n-tier Architecture
• Worked on Agile and SOA methodologies for many of the applications.
• Extensive knowledge of Client - Server architecture, Web-based n-tier architecture, database design and development of applications using J2EE Design Patterns like Singleton, Session Facade, Factory Pattern and Business Delegate.
• Good web page design skills using HTML 5/4.0, CSS JavaScript and XML
• Expertise in writing JUnit test cases.
• Expert in designing and developing various UML diagrams using tools like Rational Rose, Microsoft Visio etc.
• Solid background in Object Oriented Analysis and Design.
• Experience in working with the NoSQL, Mongo DB, and Apache Cassandra.
• Knowledge on major components in Hadoop Ecosystem like Hadoop Map Reduce, HDFS, HIVE, PIG, Pentaho, HBase, Sqoop, Oozie and Flume.
• Knowledge on Oozie workflow engine in running workflow jobs with actions that run Hadoop Map/Reduce and Pig jobs.
• Excellent ability to quickly master the technologies and concept.
• Extensive Problem solving skills with hunger for knowledge that plays a vital role in every project.
• Excellent analytical and communication skills coupled with positive user interaction and team spirit.

TECHNICAL SKILLS

• Java
• J2EE
• C
• C++
• React JS
• Angular JS
• Bootstrap
• HTML 5/4.0
• XHTML 2.0
• DHTML
• CSS 2.1/2.0
• XML 1.1/1.0JavaScript 1.8.5/1.8.2/1.8
• Ajax
• XSL
• XSD
• JSP 2.1/2.0
• Servlets 3.0/2.5/2.0
• JDBC 4.1/4.0/3.1/3.0 Web Services
• EJB 3.0/2.0
• Struts 2.3/1.2/1.1
• Spring 4.0/3.2.5/3.1/2.5
• Hibernate 4.1.9/3.5.0/3.0/2.0 JPA
• Log4j
• Toad 12.0/11.0/12.0
• ANT 1.7/1.6
• JUnit 4/3.4
• SOAP
• REST
• WSDLEclipse 4.3/4.2/3.8/3.5/3.3 RAD 9.0/8.5/8.0/7.5
• NetBeans 7/6
• IBM WebSphere 8.5/8.0/7.0/6.1
• Weblogic 11g/10/9/8/7
• TCP/IP
• FTP
• SOAP
• HTTP/HTTPS
• JMS
• POP
• SMTP
• MS SQL Server 2008/2005
• MySQL 6.0/5.3/5.1/5.0
• Oracle 11g/10g/9i
• Windows
• Linux
• UNIX.

PROFESSIONAL EXPERIENCE

Senior Full Stack Developer

Confidential

Responsibilities:

• Involved in document analysis and technical feasibility discussions for implementing new functionalities.
• Involved in server side and front-end validation using Struts Validation framework and JavaScript.
• Struts Tag Libraries and Struts Tiles Framework were used in addition to JSP, HTML5, AJAX and CSS3 in developing the presentation layer.
• Inject EJBs directly into components and use Service Locator pattern to get an instance of an EJB.
• Used transfer object to transfer data across tiers.
• Created Web services using EJB components and guarded against SQL injections and Cross Site Scripting attacks.
• Developed the user interface with JQuery, JSP, HTML5, CSS3 and JavaScript.
• Developed various Database interaction objects by implementing the DAO patterns and used JDBC as Model Component.
• Developed and maintained the necessary Java components, Enterprise Java Beans (EJB), JavaBeans and Servlets.
• Implemented applications using Java, J2EE, JSP, Servlets, JDBC, RAD, XML, HTML, Hibernate Struts, spring and JavaScript on Windows environments.
• Developed UI Using JSP, HTML, JQuery, ReactJS, Redux, and Java script to simplify the complexities of the application.
• UsedReact JS for reusable components andmanaged all UI updates when data changes every time after hitting refresh button using React JS.
• Used React Router and redux to manage the application state and routing every time when data changes.
• Used Struts framework along with JSP, HTML, CSS and JavaScript to construct the dynamic webpages (presentation layer) for the application.
• Developed web services code for the system will either use services in connected applications to perform business operations.
• Designed Class/Sequence diagrams through RAD 6.5 for the technical design.
• Writing custom filters, directives for the HTML5 using angular code.
• Created XML for deployment descriptors, struts configuration files and integrated to validation files.Created PDF reports using Jaspersoft in .jrxml. Generated Spring XML files for the configured beans.
• Developed model components using session beans and used local message driven beans (MDB) to interact to session using EJB.
• Maintained, structured, and surveyed documents within the NoSQL MongoDB database; ensuring data integrity, correcting anomalies, and increasing the overall maintainability of the database.
• Tested the performance of the data sets on various NoSQL databases.
• Used Web Services on front end, Servlets as Front Controllers and JavaScript for client side validations.
• Prepared Unit and Integration test case documents.
• Review Unit and Integration test case documents also responsible for Unit and Integration testing.
• Consumed Web services using JAX-WS and generated client stubs from WSDL for web services.
• Created Build and Deployment Script using maven for deploying the application to WebSphere Application Server.
• Oracle database was used, wrote stored procedures for common queries
• Used RAD as the Java in the development of the application.

Environment: Java/J2EE, Spring REST Web services, jQuery, XML, AJAX, ReactJS, JavaScript, HTML, CSS, JSP, JSF, Junit, EJB3.0, CMT, Jasper, Oracle 11g,Soap UI, JMeter.

Sr. Java Programmer

Confidential, Mclean, VA

Responsibilities:

• Involved in business discussions regarding requirements analysis and System Module Specifications
• Used Java beans, model objects to transfer a package of information among view layer, business service layer, data layer and EJBs to execute business logic separately.
• Implemented JSF framework extensively which involves building the whole user Interface components using JSF tab panels, Panel groups and data tables. Integrated components like partial triggers, calendar, and action/value change listeners with JSF for enhancing the front end GUI layout.
• Designed UI pages using JSF v2.2, Prime faces v5.1, Java Script, CSS, AJAX, JQUERY, AngularJS, JSP, JSON and Tag libraries.
• Wrote queries for the modifications to existing database structure.
• Refactored, re-architected, and enhanced an existing AngularJS application to follow strict MVVM/MVC patterns for improved source code maintenance.
• Developed an AngularJS workflow manager leveraging Angular-UI's state router for flexible configuration and management of multi-step user input flows.
• Performed User Interface Design and coding using Java & J2EE, Spring framework and web technologies.
• Used multithreading in programming to improve overall performance.
• Implemented JSF with Managed Beans, Topics, and Connection Factories in some portions of project (Model View Controller) to handle/intercept the user requests and used various controllers to delegate the request flow to the Backend tier of the application. .
• Developed EJB classes in the persistence layer for transaction management.
• Performed Unit testing using JUNIT, System, Regression, and Integration Testing.
• Used AJAX technology for invoking server calls.
• Used Log4J API for logging and debugging.
• Used HP ALM to keep track of Defects.
• Developed the application using Agile methodology and followed TDD.
• Clear Case is used for version control systems and source code management.
• Involved in various internal releases of the application and supported the application modules during testing and pre-production phases.
• IBM Doors Product is used to keep the track of the SRS and updating the changes according to the BRD.
• Used Ant for building and deploying the war file into application server
• Involved in designing the Design Document, including Sequence Diagrams, Class Diagrams and Object Models.
• Involved in migration of Ant to Maven, Clearcase to Git.
• Worked on to create Responsive Web Design with Bootstrap framework.
• Developed single page applications (SPA’s) using Angular JS.
• Extensively worked with Angular JS framework for UI development and developed html components for usage in common modules.
• Worked with front-end build environment of Grunt, Node JS.
• Built custom UI Widgets and Application logic using Angular JS MVC architecture
• Implemented prototyping of user interfaces relating to JavaScript programs
• Worked with Eclipse as the IDE to develop, test and deploy the application.
• Used DB2 as the backend database.
• Loaded the records from Legacy database (DB2 V10) to existing one (Cassandra 1.2.8).
• Synchronized the create, Update and delete of records between Legacy Database (DB2 v10) and Cassandra 1.2.8.
• Created an UML diagram that includes Sequence Diagrams, Class Diagrams & use case diagrams as part of the application design using Micro Soft Visio tool.
• Installation, Configuration and Administration of IBM WebSphere Application Server 7.0, 6.1, 6.0, 5.1 versions on Windows Environments.
• Used WSDL, SOAP, JAX-WS, JAX-RS, CXF technologies to create web services, generate stubs and consuming the existing services.
• Used log4j for logging purpose.
• Used CXF API to generate Restful web services.
• Tested SOAP web services using SOAP UI and REST web services using REST Client.
• Used Apache Ant v1.5 as build tool for the project.
• Used TOAD for internal data storage and retrieval.
• Used Ervin tool to design database tables.
• Involved in setting up Connection pooling and used JMS for Asynchronous messaging.
• Involved in peer & lead level design and code reviews.
• Involved in building the code & deploying on WebLogic application server.
• QA, UAT & SIT Production issues investigation and supporting business users.

Environment: Java/JEE, JSF, Prime Faces 5.1, AJAX, Spring, Angular JS, Grunt, Bootstrap, Hibernate, Web Logic App server, JMS, JDBC, Eclipse, Log4j, Maven, Jenkins, JUnit, Git, Oracle, Web Services- WSDL, SOAP, REST, XML, JSON, SVN, SFTP, Ervin, Soap UI, Oracle, REST Client, MS Visio, Rapid SQL 8.1.

Sr. Java Programmer

Confidential, Rock Island, IL

Responsibilities:

• Responsible for system analysis, design and development using J2EE architecture.
• End to End Project management, including customization of product based on customer’s requirement, meeting delivery deadlines on development, testing, implementation phases of the system.
• Used Spring Framework to develop lightweight business components.
• Used Spring IOC for dependency injection and Spring AOP for cross cutting concerns like logging, security and transaction management.
• Designed, developed, and maintained the data layer using Hibernate and used Spring ORM to integrate with Hibernate.
• Used XML for the data exchange and used SAX and DOM parser to extract and read the required information from the XML.
• Implemented the persistence layer using Hibernate ORM.
• Developed Web Services using REST, WSDL and XML.
• Developed the helper classes for better data exchange between the MVC layers.
• Developed session beans for the business logic.
• Used Log4j to capture the log that includes runtime exception and for logging info and are helpful in debugging the issues.
• Developed the Hibernate mapping files and involved in writing JUnit test cases and suits using Eclipse IDE.
• Used ANT tool for building and packaging the application.
• Configured and deployed the application in WebLogic Application Server.

Environment: J2EE, Eclipse 4.2, JSP 2.1, Spring 4.0, Hibernate 4.1.9, Servlets 3.1, Oracle11g, Rational Rose, Rational Clear case, JMS 1.1, JavaScript 1.8.5, ANT 1.7, Log4j, JUnit 4.0, REST, WSDL, XML 1.1, Weblogic Sever 11g.

Senior Java Developer

Confidential, Las Vegas, NV

Responsibilities:

• Involved in the design and implementation of well-integrated products.
• Involved in the modifications of the presentation layer using JSPs and CSS as the UI to place an order.
• Implemented Struts Model View Controller architecture to develop presentation tier and business layer.
• Developed and execute unit tests and test suites for product components using JUnit Testing.
• Responsible for client side UI Validation and implementing Business logic based on user selection using JQuery, UI and AngularJS.
• Used Ant Build tool to deploy the application in web sphere. Ant scripts used for automating build process.
• Implemented the project with Agile methodologies.
• Used DOM and SAX parser for accessing objects in JavaScript.
• Developed Struts Actions that grabs data from the forms, does validation and calls services and data access objects DAO’s.
• Modified the Business Delegate and connector classes
• Used web service calls for exchanging data with the other gaming applications.
• Hibernate is used to maintain the persistence records in the Database as a persistence layer based on ORM
• Developed DAO’s Interfaces and their implementation for accessing the POJO’s and updating the database.
• Developed and modified the stored procedures, the DAO (Data Access Objects) and VO (value Object) classes for separating the Data Access logic and business logic
• Spring Framework is used to provide IOC and Dependency Injection features which provides a sophisticated implementation of the factory pattern.
• JBoss application servers running in some parts of the system enabled the use of EJB 3.0 in those parts and dependency injection supported by EJB 3.0 allowed Spring bean factories to be injected in the EJBs.
• Used version control systems like SVN, CVS check-in, check out.
• Rational ClearCase was used to maintain version control.

Environment: Java, J2EE, AngularJS, JDK, Struts 2.3, Spring 3.2.5, Hibernate 3.5.0, SOA, SOAP 1.2, SVN, CVS, Web services, WepSphere 7, Ant 1.7, HTML4, CSS 2.0, JSP 2.1, RAD 7.5, Oracle 10g.

Java Developer

Confidential, Dallas, TX

Responsibilities:

• Understanding business objectives and implementation of business logic.
• Involved in the development of the Middle-tier and Backend using Java, J2SE, J2EE and Oracle.
• Developed the User Interface (UI) using Java Server Pages (JSP) utilizing Custom Tag Libraries and XSLs.
• Designed web pages using JSP, XSL, HTML, DHTML, AJAX and client side validation with JavaScript.
• Also Transformed XML documents into other formats such as XHTML by using XSLT.
• Developed the Presentation Layer, Business Logic Layer, DAO and Transfer Object using MyEclipse
• Developed and modified the Action classes and custom business classes implementing Struts-Framework.
• Implemented Struts Model View Controller architecture to develop presentation tier and business layer.
• Implemented various Validation Controls for form validation and implemented custom validation controls with JavaScript and JQuery.
• Configured the struts-config.xml files to create and modify the form beans, Action classes and action mappings.
• Developed Java utility classes for common application functionality like database access, error logging and configuration file.
• Used web service calls for exchanging data with the other applications.
• Configured the Web Sphere instance for data sources.
• Developed and modified the stored procedures, the DAO (Data Access Objects) and VO (value Object) classes for separating the Data Access logic and business logic
• Created JUnit test cases and test suites for testing the application
• Extensively participated in Spring and IBatis application integration. Spring is used to integrate Struts and IBatis
• Used Log4j for logging.
• Used Rational Clear Quest for Defect resolution.
• Developed Web Services using SOAP, WSDL, UDDI and JAX-WS programming model.
• Developed the Presentation Layer, Business Logic Layer, DAO and Transfer Object using MyEclipse
• Worked in Spring AOP Interceptors in Logging and Auditing.
• Used IBatis for object-relational mapping (ORM) and for database operations in MySQL
• Used MAVEN for building the application and deployed it on Weblogic Application Server
• Used CVS to maintain version control to check in, checkout and co-ordinate among team members.

Environment: Java, J2EE, JDK, UNIX, JSP 2.0, JQuery, Struts 1.2, Spring 3.1, IBatis, MySQL, Weblogic Application Server 10.3, SOA, Web Services (SOAP, WSDL), JavaScript 1.8.2, CSS 2.0, Log4J, HTML4, PL/SQL, CVS, Eclipse 3.5.

Java Developer

Confidential, Birmingham, AL

Responsibilities:

• System study and requirement analysis and Documenting Requirement Specifications.
• Interacting with the system analysts & business users for design & requirement clarifications.
• Involved in the creation of sample UI prototype for the client.
• Used Connection Pooling to get JDBC connection and access database procedures.
• Was responsible for designing the tables in database.
• Used VSS repository for version control.
• Used log4j as a debugging tool.
• Involved in Java, J2EE coding.
• Testing the application manually.

Environment: Java, J2EE, Struts 1.1, Ant 1.6, Eclipse 3.5, SqlServer2005, Log4j, VSS 2005, and UNIX.

Software Developer

Confidential

Responsibilities:

• Designed the web application using Struts framework’s Model-View-Controller (MVC) pattern to make it extensible and flexible.
• Implemented the Struts-Config, Action Form classes and Action classes.
• Implemented the front-end pages using JSP, JSTL and Struts Tag Libraries.
• Configured connection caches for JDBC connections.
• Used JavaScript for creating the global templates that can be used across the JSP pages.
• Developed code for generating the XML requests required for calling the web services.
• Configured logger, appender and layout using log4j.
• Used Hibernate for Object Relational Mapping.
• Used Ant 1.6.5 for building JARs and WAR.
• Configured and deployed Application on Websphere
• Rational Clear Case was used as source and version control for rebasing and delivering the code.
• Wrote unit test cases and also performed unit testing and integration testing.
• Preparing documentation for both high level and low-level designs, and process flow control for the entire application.

Environment: Servlets 2.0, JSP 1.1, J STL, EJB 3.0, Struts 1.2, Hibernate 2.0, JNDI, HTML 3.0, XML 1.0, Eclipse 3.3, ANT 1.6, IBM Websphere 6.1, Oracle 9i, log4j

Software Developer

Confidential

Responsibilities:

• Involved in the Development and Analysis of this Enquiry module.
• Prepared and documented Use Case Specification, Use Case Diagrams, Class Diagrams, and Collaboration Diagrams UML.
• Along with the documentation, also worked on Asynchronous / Synchronous communication patterns.
• Worked on different tools such as Component, SOA Composite and OBER.
• Developed Oracle SOA services in an Agile development environment, Considering the SOA Governance & Best Practices - for managing business assets such as WSDL, XSD’s and Process.
• Worked on SOA Design Patterns for building middleware systems.
• Worked on a multi-tier web based environment using J2EE technologies: JSP, EJB and Java Servlets.
• Developed components using Session Beans.
• Developed JSP and Servlets
• Developed the business logic using EJB
• Developed the Internationalization to the Application
• Validating the views using validator plug-in in Struts Frame Work
• Designed and coded JSP for presentation layer.
• Developed Java Beans for business logic required by the JSP’s.
• Developed WebPages using XML.
• Used JDBC Thin Driver extensively for invoking complex query on database.
• Developed Test Plans using JUnit.
• Responsible for Deploying, Implementing the application at Client site using Ant build tool
• Wrote reusable functions for xml transformation in Java Server Pages.
• Designed the solutions for a top existing components and within the constraints particularly specified by the project.
• Development and Analysis of the Client Data Bank module of the Life Insurance product.
• Done the complete requirement/system specifications and test specifications.

Environment: JDK1.4, JDBC 3.0, HTML 4.0, EJB’s, Servlets 2.0, JSP’s, XML 1.0, JUnit 3.4, Struts 1.1, Ant 1.6, JavaBeans, Oracle Service Bus, Oracle 9i, Oracle SOA Suite 11g,HP-Unix, Win98/ 2000, WebLogic 8.0, Eclipse 3.3.