PROFILE SUMMARY:

• 8.5 years of professional experience in design, architecture, development and support of web - based Java/J2EE enterprise applications.
• Solid background in major business domains including insurance, telecommunication, financial and e-commerce.
• Hands-on experience in all stages of Software Development Life Cycle including proposal, process engineering, design, development, testing, deployment and support.
• Extensive development experience in multi-tiered/object-oriented/distributed/service-oriented system architectures.
• Experienced in designing Web Applications using HTML 5, Bootstrap,CSS, JavaScript, Angular JS under Windows and UNIX Environments
• Expert level skills in Java/J2EE Technologies including Struts, Spring Framework, Hibernate, JMS, Servlets, JSP, JDBC, JTA, JAXB, XML/XSLT, RMI, JNDI, LDAP and JMX.
• Good experience in developing Multi-Threaded applications using Concurrency API’s.
• Strong hands-on experience on web services with Restful and SOAP web services.
• Extensive experience on BEA Weblogic, WebSphere, Sybase and Oracle.
• Strong working knowledge of clustered application server environments.
• Experience working in high pressure team environments with intense development and release activity.
• Adaptive to work in environments involving simultaneous activity on multiple projects.
• Excellent communication and interpersonal skills.

TECHNICAL COMPETENCIES:

Java Technologies: Java/J2EE, Spring, Hibernate, JMS, Servlets, JSP, Struts, JDBC, JTA, JAXB, RMI, JNDI, JMX, Gemfire.

BigData Technologies: CDH4 and HDP2.2, Hive, Sqoop, HBase

Databases: Oracle, Sybase, MySQL, DB2.

Application Servers: IBM WebSphere, BEA Weblogic, JBoss.

Internet Technologies: XML/XSLT, XSD/DTD, JavaScript/JQuery,JSON, AJAX, HTML, CSS.

Web Services: Restful and SOAP web services.

Development Tools: ANT, Maven, Log4J, JUnit, TOAD/Accurev, ClearCase/CVS, ClearQuest, Rational Rose.

Tuning Tools: JProfiler, Jprobe.

Java IDE: IBM WSAD, RAD, Eclipse, MyEclipse, NetBeans, Intellij.

Other Languages: C/C++.

Scripting Languages: Perl, Shell Scripting.

Operating Systems: Windows, UNIX (Solaris/HP-UX).

PROFESSIONAL EXPERIENCE:

Confidential, NJ

Sr. J2EE Developer

Technologies: Java 1.8, JSP, HTML, AngularJS, Ajax, JQuery, Javascipt, Spring MVC, POI, Hibernate, Oracle 10g, XML, XPath, XSLT, RESTful webservices, JAXB, Weblogic 12.1.3, Eclipse, Unix, CVS.

Responsibilities:

• Implemented the project in Agile methodology & participated actively in daily standup calls.
• Handled the requirements, code and test walkthroughs.
• Generated Use case diagrams, Class diagrams, and Sequence diagrams using Rational Rose
• Developed the presentation layer using HTML5, CSS3, Ajax, Javascript & AngularJS.
• Developed the framework based on Spring MVC Architecture.
• Extensively used core java collections, concurrency API to develop custom data cache.
• Extensively worked on both consumption & producing of RESTful based webservices using JAX-RS & jersey parsers.
• Used DOM Parser to parse the XML response from webservices.
• Used Singleton, Business Delegate, Factory and DAO design patterns
• Developed the Persistence Layer using Hibernate.
• Used POI framework to parse the excel sheets, get the values and insert into the database tables.
• Used JAVA Mail API, and implemented an automated functionality to generate e-mails to the manager whenever an user registers for the application
• Implemented logger for debugging using Log4j
• Developed few stored procedures, triggers and sequences.
• Configured CRON Jobs to trigger the daily end of day feed.
• Involved in performance tuning of application and environment for optimized performance during month end load using Jprofiler.
• Used CVS for version management & Maven for building the application.
• Extensively used Fusion Charts for reporting the data
• Involved in building and maintaining cloud based infrastructure on AWS.
• Served as POC for on call support in the production team on a rotation basis.
• Worked in Agile - Scrum methodologies
• Performed naming conventions using TDD

Confidential, Chicago, IL

Sr. J2EE Developer

Technologies: Java 1.5, J2EE, Spring 3.0, Hibernate 3.0, Jersey 1.0.2, Log4J, SOAP Web services, JSON, Websphere Application Server 6.1, Rational Application Developer 7.0, Oracle, JMeter, Java script, HTML5, JQuery, Ajax.

Responsibilities:

• Participated in the system architecture and design and made use of proven Gang-of-Four (GOF) and J2EE design patterns
• Developed several WebService stubs using AXIS 2.0 engine, SOAP UI, JAX-RPC, WSDL, Document literal.
• Developed XSLT files for transforming the XML response from the web service into HTML as per the business requirements
• Designed and implemented complete functionality for support of trades search involving UI (JSP/JavaScript), DTOs, Business logic execution and invocation using stateless EJBs.
• Involved in integration of internal and external systems using Spring Integration.
• Implement AJAX based rich client components for improved customer experience using JSON data, JQUERY, DOJO, CSS, and HTML.
• Designed, implemented and altered database tables, procedures and packages to support the functionality.
• Created Activity diagrams, State Chart diagrams, ER diagrams, Sequence diagrams, Collaboration diagrams, and web page mock ups in MS-Visio.
• Integrated the Web layer with Oracle database using Spring ORM and other components with JMS.
• Involved in Design, implementation and tuning of database and SQL scripts for optimal performance.
• Redesigned and built the schemas to meet Optimal Performance measures.
• Developed SQL Queries to fetch complex data from different tables in remote databases using joins, database links and formatted the results into reports and kept logs
• Developed XSLT files for transforming the XML response from the web service into HTML as per the business requirements
• Used Clearcase as a version management tool & Jenkins for CI.
• Configured the Deal Manager Processor using JMS queues in Weblogic.
• Developed shell scripts and autosys jobs
• Developed the application in highly multi-threaded programming using Java, OOPs concepts and threads

Confidential, Bentonville, AR

Sr. J2EE Developer

• Designed enterprise level applications on XML schema, SOAP and WSDL technologies.
• Coded JSP pages and used JavaScript for client side validations and to achieve other client-side event handling.
• Black box calculation of this financial reporting and thoroughly understood and developed in GWT, spring and Hibernate technology.
• Legacy data from Sybase database was made available to the uses to view through newly developed framework using GWT and XML implementation.
• Worked on Java Script libraries like jQuery and JSON.
• Developed application on spring 3.x framework by utilizing its features like Spring Dependency injection, Spring Security, Spring Web flow with Spring MVC.
• Used spring's dependency injection for injecting entity manager and managed beans into spring beans.
• Worked on Spring Web Flow on Spring MVC for building flows in our web application.
• Used Spring Security framework for login authentication, password hashing.
• Worked on Java Message Service (JMS) API for developing message oriented middleware (MOM) layer for handling various asynchronous requests.
• Worked with topic for creating publish/subscribe-messaging model using Apache MQ and Tibco MQ.
• Developed persistence layer based on JPA framework for providing POJO persistence model for object-relational mapping.
• Used Hibernate as an implementation engine for JPA API.
• Created Oracle store procedures for handling and processing complex data based logics.
• Wrote complex SQLs for creating, retrieving, updating and deleting data in oracle database.
• Developed store procedures and complex queries using tool called PL/SQL developer.
• Developed, Tested and Deployed application in IBM Web Sphere 7.0 server.
• Wrote scheduled batch jobs on UNIX environment for handling various huge databases update logics without manual interventions.
• Used Concurrent Version System (CVS) as source control tool.
• Developed unit test cases and suits on JUnit framework for unit testing