SUMMARY:

• Around 8 years of extensive experience in Software Development Life Cycle (SDLC), Web Application Design, Development, Programming, Testing, Support Maintenance, and End - User support using java/J2EE technologies with WebSphere, DB2 and WebLogic application servers.
• Responsible for coding, implementation and unit testing of various J2EE related projects.
• Core expertise, design and expert level coding skills in Core Java, J2EE, JSP, Servlets, EJB, JDBC, MVC Framework, Spring, Struts, XML, HTML, Hibernate.
• Expertise in socket, collections, serialization, threads programming.
• Expertise in various open source frameworks like Struts 2, spring and Object Relational Mapping Technology like Hibernate.
• Experience in the developing User Interface (UI) Applications and Professional Web Applications using HTML 4/5, CSS2/ CSS3, JavaScript, AngularJS, jQuery, AJAX, JSON, XHTML and XML.
• Developed Webpages using UI frameworks, AngularJS and ExtJs.
• Experience building cloud native app with Spring Framework and Spring Boot (Auto Configuration)
• Extensive experience of working on all tiers of J2EE n-tier Architecture. Servlets & JSP using the Struts framework in the web tier and EJB as business tier and JDBC/SQL to interface with the EIS tier.
• Proficient in designing applications using Java and J2EE Design Patterns such as Creational, Structural and Behavioral design patterns like Singleton, Factory, Builder, Observer, Command Patterns, etc.
• Very good knowledge of ORM utilities like Hibernate. Used Object/Relational persistence and query service Hibernate.
• Proficiency in developing secure enterprise Java applications using technologies such as JSP, Servlets, JAVA Beans, C++, EJB, JMS, JNDI, JDBC, XML.
• Helped designed and develop a RESTful API that provided account management capability as well as security role lookup and management for all downstream dependencies in the digital supply chain.
• Experience in SOAP, JAX-RPC, JAXB, JAXP (XML binding technologies), XML and WSDL using IBM-MQ (messaging technology) series for developing Web Services.
• Experience with JSF. Expertise on entire Software Development Life Cycle (SDLC) in Intranet and Internet applications using Web/Application Servers like Tomcat, JBoss, WebSphere, WebLogic and Portlets Application Server.
• Sound Relational Database RDBMS concepts using SQL Server, Oracle, MySQL, and DB2.
• Installation, configuration and administration knowledge of Apache Tomcat, WebLogic.
• Knowledge in Agile software development process, test driven development and Object-oriented modeling UML, Object-Oriented analysis and design, developing Use Cases, Interaction Diagrams (Sequence and Activity), Class Diagrams, and Package Diagrams using Rational Rose & Visio.
• Highly organized with the ability to prioritize work load, manage multiple projects and meet project deadlines by following project standards and procedures as per client specifications.
• Strengths include broad and deep technical knowledge, with ability to quick assess and learn unfamiliar systems and to analyze scope and establish technical and business requirements.

PROFESSIONAL EXPERIENCE:

Sr. Java Developer

Confidential - Plano, TX

Responsibilities:

• Actively involved in defining and designing the tiers of the applications and implementation using J2EE design practices.
• Experience in identifying the technical areas that contributed to the issues and documenting them. Worked with development of presentation tier using JSTL, JavaScript, AJAX, jQuery.
• Developed User Interfaces using HTML, CSS and JSP's for user interaction.
• Enhanced application by building new components in Angular 2 and typescript with a REST wrapper around the existing backend Java services as well as various enterprise web services integration.
• Spring Core Annotations for Dependency Injection Spring DI and Spring MVC with Spring Boot for REST API's.
• Utilized JIRA as a ticketing tool and SVN for code repository.
• Developed DAOs (Data Access Object) using Hibernate as ORM to interact with DBMS Oracle 11g.
• Used Hibernate Transaction Management, Hibernate Batch Transactions and Cache Concepts. Implemented JMS for asynchronous auditing purposes.
• Responsible for change requests and maintenance during development of the project.
• Implemented design patterns such as Singleton, Factory and Builder.
• Designed and deployed server side EJB (Session Beans and Entity Beans) components on Eclipse IDE. Implemented server side tasks using Servlets and XML.
• Consumed Web Service using WSDL and SOAP and Used SoapUI for testing.
• Wrote PL/SQL queries, Stored Procedures, and Triggers to perform back-end database operations.
• Configured the project on Oracle WebLogic application server.
• Used Restful web services to consume the service and SOAP UI to test the web services.
• Designed and implemented scalable, secure cloud architecture based on Amazon Web Services.
• Extensively Used JavaScript to provide the users with interactive, Speedy, functional and more usable user interfaces.
• Worked with third-party services like Content Manager on Demand (CMOD) and PDF BOX tool.
• Worked on creating a test harness using POJOs which would come along with the installer and test the services every time the installer would be run.
• Installed, configured, and managed the servers (AWS, Linux, Tomcat, Apache, MongoDB, Hudson/Jenkins, JIRA, Git, and JUnit)
• Design and development of different modules for Straight Thru Trades Processing system, using Sybase ASE, Perl, Java (JSP, JDBC)
• Designed, developed, implemented, and maintained custom Ant tasks in Java and Groovy.
• Experienced in working with Tomcat, WebLogic and IIS web servers.
• Created a light front-end framework against the JSON API for their service request portal using Backbone.js.
• Used Multithreading and collections to improve performance of application.
• Built scripts using Apache Ant to build the J2EE applications. Used SVN for version control.
• Written Test cases using JUnit framework to validate the application flows in different scenarios. Implemented the logging mechanism using Log4j framework.

Environment: Java 1.7, JSP, JSTL, EJB, Eclipse IDE, Hibernate 4.0, jQuery, JavaScript, AJAX, Spring Boot, HTML 4/5, CSS 3, XML, Oracle WebLogic 10.3.5, JUnit, PL/SQL, Oracle 11g, ANT, UML and SVN.

Sr. Java /J2EE Developer

Confidential - West Des Moines, IA

Responsibilities:

• Involved in requirements gathering and analysis from the existing system. Captured requirements using Use Cases and Sequence Diagrams.
• Developed application using spring and Hibernate.
• Designed and coded portions of all tiers of the application: JavaScript, jQuery, DHTML, CSS, JSON and Ajax in the Web front end, REST Web services written in Spring REST wrapped by Jersey JAX-RS, MongoDB (NoSQL) database.
• Involved in making release builds for deploying the application for test environments.
• Refactored existing project to make it more RESTful and thread-safe.
• Worked on AngularJS to minimize the impedance mismatch between documents centric HTML and what an application needs by creating new HTML constructs.
• Developed and used JSP custom tags in the web tier to dynamically generate web pages.
• Used Putty for UNIX login to check the server logs.
• Worked on analytics applications with Cassandra and MongoDB.
• Used spring to manage beans to use windows session state framework to persist session to the database.
• Used Spring IOC and MVC for enhanced modules.
• Managed maven environment by setting up local, remote and central repositories with required configuration in maven configuration files.
• Used AJAX and JSON for asynchronous call to the servers.
• Created a foundation for modularized HTML, CSS, and JavaScript which enabled migration of the existing UI from a home-grown CSS-soup to Bootstrap.
• Access from the mainframe to the distributed system was through socket programming.
• Implemented spring service layer with dependency wiring, transaction, DAO and annotations.
• Developed web applications using Rational Application Developer (RAD) and deployed it in web sphere application server5.1
• Used Hibernate for connecting to the database and mapping the entities by using Hibernate Annotations. Used JUnit and jMock for unit testing.
• Used Maven for build framework and Jenkins for continuous build system.
• Developed GUI using Front end technologies like JSP, JSTL, AJAX, HTML, CSS and Java Script.
• Developed a code for Web services using XML, SOAP and used SOAPUI tool for testing the services proficient in testing Web Pages functionalities and raising defects.
• Participated in Code Reviews for better quality assurance and Debugged the application Module. Deployed the application on WebSphere server.
• Experience using and creating custom scripts and applications using the AWS SDK and/or CLI Tools. Experience in developing scripts using RESTful API models for the purposes of integrating workflows with AWS.
• Write automated test cases in Java/JUnit 4 and Selenium for telnet, REST web services, web UI, Android UI.
• Implemented JMS to generate appointment logs.
• Used Java Messaging artifacts using JMS (MQ Series) for sending out automated notification emails to respective users of the application.
• Used Log4J to print info, warning and error data on to the logs.

Environment: Java 1.7, Spring, Hibernate, WebSphere, Struts2, JSP, JSTL, SQL Server 2012, jQuery, CSS 2, HTML 4/5, Log4j, JavaScript, Maven, Eclipse, Find Bugs, Putty, Design patterns, SVN, Groovy, Cassandra, MongoDB, AJAX, JSON, JUnit.

Sr. Java Developer

Confidential - Jacksonville, FL

Responsibilities:

• Identified the Business requirements of the project. Involved in preparing System Requirements for the project. Involved in preparing the Detailed Design document for the project.
• Extensively used MVC, Factory, Delegate and Singleton design patterns.
• Used Full Stack JS for removing the need for managing database interactions on client views.
• Designed, Developed and analyzed the front-end and back-end using JSP and Spring 3.0.
• Used Spring Framework AOP Module to implement logging in the application to know the application status. Used Spring DAO Module along with Struts Framework to deal with Database.
• Spring MVC Framework 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.
• Developed, and debugged the Servlets and EJB with WebSphere Application server.
• Developed Session, Entity Beans and Message Driven Beans.
• Used Spring Validation framework to implement the server side validations and used AJAX to get the data from the server asynchronously by using JSON objects.
• Developed UI with Struts Tiles framework, JMS, HTML, JSP, JavaScipt, JQuery to present Client side GUI.
• Implemented Representational state transfer (REST) Web services for distributed systems using Jersey framework.
• Developed efficient web services for server and client communication protocols through REST architecture.
• Designed the data flow for the client-side screens and the object interaction layer for the server side components using Rational Rose. Involved in Use Case Diagrams, Class Diagrams and Sequence diagrams.
• MQ was used to provide a single unifying transport that reduces cost and maintenance efforts, including support for HTTP, REST and JMS.
• Used XML/XSLT for transforming common XML format. Designed configuration XML Schema for the application.
• Used XML HTTP Request Object to provide asynchronous communication as part of AJAX implementation.
• Used SOAP for Web Services by exchanging XML data between applications over HTTP.
• WSDL was used for publishing Web Service interfaces.
• JUnit tests were written to test each module in the application. Involved in Code Review, Unit Testing and Integration Testing.
• Wrote Ant Scripts to automate the build and deploy process.

Environment: Core Java/J2EE, Servlets, JSP, Spring 3.0, JSTL, EJB, JMS, XML, XSLT, JDBC, AJAX, IBM WebSphere Application Server 7.0, Oracle 11g, IBM MQ, HTML, CSS, JavaScript, Eclipse, UML, Rational Rose, CVS, JUnit, Ant.

Java/J2EE Developer

Confidential - Washington, DC

Responsibilities:

• Actively participated in meetings with Business Analysts and Architects to identify the scope, requirements and architecture of the project.
• Designed UML Class Diagrams and Use Case Diagrams to understand the code easily.
• Involved in developing the presentation layer using HTML, XHTML, XSL, CSS, JavaScript, jQuery and AJAX.
• Developed application user interface using JSF 2.0 Web Framework. Effectively used JSF converters such as convert Number, convert Date Time and various validator's.
• Used various JSF tags such as input Text, select One Menu, graphic Image, output Style Sheet, command Button and command Link etc.
• Used JSF framework in developing user interfaces using JSF UI Components, Validator, Events and Listeners.
• Created various resource bundle files for custom messages.
• Created multiple composite components and used JSF inbuilt event handlers.
• Developed data access layer using Hibernate ORM and its second level cache for optimizing the database performance.
• Developed Stored Procedures, Views, Triggers and Functions using PL/SQL in Oracle.
• Developed XML parser classes by using JAXP and XPATH API for parsing XML documents.
• Developed and consumed RESTful web services using Java Servlets, Apache XMLBeans, and JSON. Used XMLSpy and SoapUI to test the web services end points.
• Used Apache Ant build tool for compilation and building WAR files.
• Used IBM-DB2 to retrieve the data from and Oracle 10g has been used to save the end results into the database.
• Used SVN as a Version Control System.
• Extensively used Java Multi-Threading concept for downloading files from a URL.
• Build and configured Tomcat 6.0 for use as a standalone web server for development that supports Servlets and JSP for a specific module.
• Developed various test cases using JUnit testing frame work to test various modules of the application. Implemented logging by using Apache Log4j logging framework.

Environment: JSF 2.0, Hibernate ORM, RESTful, JAX-RS, JSP, JUnit, JNDI, Log4j, Ant, HTML, AJAX, CSS, JavaScript, Tomcat 6.0, XML, XSL, Oracle 10g, IBM-DB2, SVN, Eclipse.

Java Developer

Confidential

Responsibilities:

• Worked closely with the Requirements team and analyzed the Use cases. Elaborated on the Use cases based on business requirements and was responsible for creation of class diagrams, sequence diagrams.
• Developed XML files, DTDs, Schema's and parsing XML by using both SAX and DOM parser.
• Involved in planning process of iterations under the Agile Scrum methodology.
• Designed and implemented the User Interface using JavaScript, HTML, XHTML, XML, CSS, JSP, AJAX and MySQL.
• Developed and used JSP custom tags in the web tier to dynamically generate web pages.
• Worked with Struts (MVC Paradigm) components such as Action Mapping, Action class, Dispatch action class, Action Form bean.
• Used Spring Core Annotations for Dependency Injection.
• Implemented Spring Service Layer with Dependency Wiring, Transaction, DAO, and Annotations.
• Expertise in Web Page development using XML and XSLT Library.
• Experienced in various modules of spring namely Spring Core, Spring IOC, Spring AOP, Spring JDBC and Spring MVC.
• Developed the Action Class to handle the request and responses in Struts.
• Deployed the Web Application in JBoss EAP.
• Developed POJO Objects and used JPA as the Object-Relational Mapping (ORM) tool to store the persistent data in MySQL database.
• Used PL/SQL, Stored Procedures for handling MySQL database.
• Developed Unit Test Cases. Used JUnit for unit testing of the application.
• Java Server Faces (JSF) for building component-based user interface
• Used Log4j for logging the user events.
• Maven for compilation and building JAR, WAR and EAR files.
• The networks are simulated in real-time using an ns3 network simulator modified for Multithreading across multiple cores, which is implemented on generic Linux machine.
• Provided Technical support for production environments resolving the issues, analyzing the defects, providing and implementing the solution for defects.

Environment: Core Java, J2EE, Struts, Spring, XML, XSLT, JPA, Spring MVC, SQL, HTML, CSS, JSP, JavaScript, jQuery, AJAX, JBoss, Eclipse, MySQL 5.0, Log4j, JUnit, Maven, SVN.