SUMMARY

• Progressive experience of 12 years in all the phases of software development life cycle that includes Requirement Analysis, Design, Development, Integration, Re - Engineering, maintenance, installation, testing and support of various client/server and N-tier web applications.
• 8+ years of experience in design and implementation of Enterprise level Web based, Client-Server and Distributed Software applications using Java/J2EE
• Implemented 100+ small projects at Confidential and provided Technical Support to various clients as five star expert
• Experience with Web Services, Restful as well as SOAP based using Apache CXF, Spring and Jersey implementations.
• Expertise in database development including schema design, SQL queries (DML and DDL), stored procedure, triggers and user defined function creation using Oracle (PL/SQL), SQL Server (T-SQL) and DB2 (SQL PL).
• Strong understanding of Java Collections, Exception mechanism and Multi-threading concepts.
• Working experience in Agile, Test Driven and Waterfall environments.
• Working experience in conducting and facilitating JAD sessions.
• Demonstrated knowledge of Design Patterns (MVC, Session Facade, Front Controller, Service Locator, Business Delegate, Value Object and Data Access Object) patterns.
• Strong experience of doing Level 1, 2 and 3 Support.
• Good experience of Incident Management, Change management and Impact analysis.
• Expertise in implementing Server side Business Logic using Servlet and EJB (Session Bean, Entity Beans, JMS/MQ).
• Expertise in Designing and Building Complex Multi-Tier Web Applications.
• Proficient in writing test plans and test documents for Unit and Integration testing.
• Proficient in using Junit testing suite.
• Experience in logging mechanisms like Log4J and SL4J.
• Proficient in Object oriented design and analysis.
• Experience in bug/issue tracking tool Jira.
• Proficient in translating functional requirements into technical requirements.
• Proficient in database design, domain modeling and ER diagrams design.
• Hands on experience with Apache Tomcat & http server, Websphere and Oracle Application Server (OC4J).
• Hands on experience with version management tools GitHub, CVS, SVN, Clear Case and Dimension.
• Worked extensively on web applications development and maintenance using HTML, JSP, PHP, Perl, CSS, Ajax and JavaScript.
• Proficient in Data Transformation, Data Loading, Modeling and Performance Tuning.
• Proficient in writing technical documentation.
• Strong interpersonal communication skills and the ability to maintain effective working relationships with co-workers, vendors, and the public.

TECHNICAL SKILLS

Languages: Java, C++, Visual Basic.net, PHP, Perl, PL/SQL, T-SQL, SQL PL

Java: J2EE, JSP, Servlet, EJB, JMS, JDBC, SpringSpring Batch, Spring Integration, Hibernate, Tag Libraries

Scripting: Java Script, jQuery, Powershell, Unix Script

Environment: & Tools: Eclipse, IntelliJ

Application Servers: Oracle Application Server (OC4J), WAS, Apache Tomcat, IIS

Databases: Access, Oracle 9i/10g/11g, MS SQL, DB2

Database tools: Toad, SQL Developer

Web Related & Others: HTML/HTML5, CSS/CSS3, XML, XSLT, Ajax

Operating systems: Windows xp/2000/2003/vista/7, Linux, Unix

Version Control: Wincvs, Clearcase, Git, SVN, Dimension

Modeling Tools: UML (Rational Rose), RSA, Visio, Case, ERWin

Integration: Jenkins

Build: Apache Ant, Apache Maven, Gradle

Logging: Apache Log4J, SL4J

Testing: Junit, RestClient, Selenium

Issue Tracking: Jira

Monitoring: HP Sitescoping

Development Methodologies: Agile, Test Driven, Waterfall, JAD

Messaging: Websphere MQ

PROFESSIONAL EXPERIENCE

Confidential

Java Developer

Responsibilities:

• Currently working on designing RESTful APIs in a test driven environment using Spring for international payments functionality. This API will be used for international payments modules in web and native mobile applications.
• Worked on interfacing of payment system with Middleware authentication layer and utilized core java principles like exception handling and collections.
• Wrote design specification for end to end JDBC transactions by utilizing database triggers and procedures for payment system.
• Implemented spring batch in multithreaded fashion to process data from an external source.
• Produced secure, high performance java code which meat enterprise design, code quality, and security and performance standards.
• Worked closely with Build Engineers, Test Automation team and Release Management team.

Environment: Spring4.0, SASS, GIT, GRADLE, Websphere Application server, SOA, WSDL, REST, Apache CXF, JSP, Oracle DB, SQL, XML, SOAP UI, Jenkins, Maven, Subversion, Intellij 14, JMS/Web sphere MQ

Confidential, Chicago

Java Consultant

Responsibilities:

• Coordinated the entire process for multiple application releases.
• Worked closely with vendors to resolve and deliver fixes according to SLA.
• Wrote Pl/SQL stored procedures and function to process data.
• Gathered requirement and created multiple batch jobs (UNIX based and used crontab for auto execution after desired intervals) in an agile environment.
• Maintained Messaging Queues and Listeners in IBM Websphere Application Server 8.5
• Worked on modification of existing SOAP based web services.
• Involved in designing/development/deployment of multiple pharmacy related alerts/messages (order status, RX Refill etc.) that are being sent to customers on their preferred channel - email, ivr and sms.
• Managed entire 3rd party vendors and ensured compatibility, coordination and integration with CMP.
• Performed mapping between relational database tables and object oriented java objects using Hibernate.
• Performed root cause analysis over production issues.
• Collaborated with technology and business partners to continuously perform the health check and monitoring of the CMP platform.
• Involved in maintenance of database maintenance activities like purging, index creation.
• Involved in Disaster recovery plans and provided 24/7 support for the application.

Environment: IntelliJ, Oracle, SQL Server, IBM Webshpere Application Server, WebSphere MQ, EJB, JMS, Jersey, Stellent, Pitney Bowes, Unix-AIX, Apache cfx, WSDLJava 1.8, Junit, Jenkins, Maven, Spring, Hibernate, HPSM, SL4J, Javascript, DynaTrace, HP Sitescoping

Confidential, Chicago

Java Developer

Responsibilities:

• Worked in scrum environment of agile development.
• Implemented batch programs using Curam Batch framework.
• Implemented Junit test cases in Curam framework.
• Used Google Guice for implementing DAO access.
• Implemented Proof of Concept of interfacing with external systems using MQ.
• Involved in the Analysis and Technical Design, and writing Developer Test cases for various application components.
• Worked on configuring JMS client in Development environment.
• Involved in creating detailed designs and implementing Snap modules.
• Involved in Unit Testing, Integration Testing, and System Testing.

Environment: DB2, Eclipse, Web Sphere, Javascript, Cúram 6.0.5, Java 1.7, Junit, Spring, JDBC, XML, Guice, Jira, Maven, SL4J, SVN, Linux, Web Sphere MQ

Confidential

Responsibilities:

• Worked in scrum environment of agile development.
• Analyzed the design and architecture of the existing application.
• Implemented Proof of Concept of REST (Jersey) integration into the Cúram.
• Implemented CRUD REST operations leveraging Jersey.
• Implemented security for REST operations using Spring Security.
• Implemented Proof of Concept of RMI integration with Cúram.
• Worked on implementing interfacing module using Java Reflection API.
• Worked on logging and caching module for the server side components using Log4j.

Environment: DB2, Eclipse, Maven, Javascript, Web Sphere, Java 1.7, RMI, Jersey, Spring Secuirty, Log4j, Guava, Git, JDBC, XML, Linux

Confidential, Chicago

Java Developer

Responsibilities:

• Involved in coding, testing, and implementation of core functionality of the BravoSolution Collaborative Sourcing (BCS) platform software.
• Researched and documented test cases in Jira to be fixed by Development team
• Worked with Spring MVC Architecture.
• Applied core J2EE design patterns like Business Delegate, Service Locator, and Singleton in the business logic.
• Worked on consumption of SOAP based rate web services for various different clients.
• Modified existing applications functionalities.
• Utilized MS SQL Server Management Studio and Toad to generate SQL queries, Views, and Stored Procedures.
• Designed, developed and deployed several dynamic web pages using JSP, HTML, CSS and Custom Tags.
• Used Rest API to expose the contract rates for clients and performed versioning of existing services.
• Investigated and resolved problems in bidding web application. Identified areas for code improvement and refactored code.
• Performs peer code reviews. Prepared system documentation.
• Performed Root Cause Analysis of Production issues.
• Monitored the log files on Productions for errors/warnings.
• Involved in creating UAT test scripts and documenting the test steps.
• Involved in regression and System Integration testing.

Environment: Java 1.7, Jira, Oracle, Junit, Servlet, JSP, Eclipse, Jersey, Maven, SQL Server, T-SQL, Win CVS, XML, XSLT, JavaScript, jQuery, JRUN, JBOSS, Spring, Ant, Unix, Jersey REST API, Apache CFX, WSDL

Confidential, Chicago

Software Developer

Responsibilities:

• Worked on the development of efficient reports using BusinessObjects.
• Wrote SQL Scripts to Test data integrity in staging database before proceeding to production. Wrote SQL Stored Procedures and Functions to expedite Data integrity test on production.
• Designed Data Flow Models for better communicate the design to the business users.
• Responsible for Relational data modeling(OLTP) using ERwin (Logical and Physical) and MS Visio (Conceptual)
• Analyzing source data sets to capture Meta Data, Data Formats and Data Types
• Also responsible for creating, documenting and maintaining the metadata.
• Reviewed the existing database to propose necessary changes.
• Responsible for logical and physical modeling per business requirements using Erwin.
• Involved in Unit Testing, Integration Testing, and System Testing and creation these test cases based on the requirement and user stories.

Environment: Erwin, Rational clear case, Websphere, Crystal Reports

Confidential, Chicago

Tech Support Assistant (Graduate Student)

Responsibilities:

• Maintained Urchin v5.0 Web-stats Server and created the statistics of all the websites related to Galvin Library, Illinois Institute of Tech.
• Maintained Proxy Server to provide student/faculty members authenticated access to the library online resources.
• Job responsibilities were to create powershell scripts, programs and web interfaces as requested and to maintain online applications in Visual Basic, ASP, ACCESS, MSSQL and HTML.
• Provided technical support of Level 1,2 and 3 to faculty, staff, and students in an environment of about 60+ computers.

Environment: Sql server, Powershell, Microsoft Access, Microsoft Excel, Ezproxy, Windows 2000/2003/XP, Visual Studio

Confidential, New York

Software Developer

Responsibilities:

• Implementation of client requirements in various languages like C, PHP, Perl, Java and JavaScript as per the requirements.
• Worked on scriping languages for task automations.
• Involved in the black-box and white testing of the applications.
• Implementation of different J2EE design patterns like MVC Objects.
• Writing JDBC code for data access form oracle and SQL Server databases.
• Designing of JSPs.
• Development of database triggers, views functions and procedures for various database platforms.
• Designing of ER Diagrams and the writing of SQL scripts.
• Documentation for end users.