SUMMARY

• 20+ years professional IT industry experience as Software developer in Java/J2EE, system administrator and web administrator.
• Working experiences includes the areas of US government, healthcare, transportation, telecommunication and supply chain management.
• Hands on experiences in SOA, Web Services, Hibernate, Spring Framework, Agile Methodology, XML, Java Persistence API, Java Data Object, JDBC, EJB, Serialization, WSDL, SOAP, ILOG JRules, Struts framework, Log4j, ClearCase, Eclipse IDE, HL7 messaging, MVC (Module, View and Controller), OOO, Java/J2EE, JSP/JavaScript, UML, C, C+, HTML, Oracle PL/SQL, Perl and Shell scripts under different platforms, UNIX (HP - UX, Solaris)/Linux/Window.
• Very good knowledge of web servers (Sun One Web Server 6.0 and 6.1 etc.), application servers (JBOSS, WebLogic Server 8.1,9.2,10.3 and 12.2.1 etc.) and database servers (Oracle, Microsoft 2000 SQL Server, Informix etc.).

PROFESSIONAL EXPERIENCE

Confidential

Senior Java Developer

Responsibilities:

• Develop front end components using JSP, JavaScript, HTML, Struts and spring framework.
• Implement service layers using business logic using core Java/J2EE technology, ILOG rule engine, Hibernate, Quarz Clock Scheduling, Weblogic server and Oracle database.
• Create batch jobs and Jasper reports.
• Process HL7 messages from Enrollment Systems to VistA and from VistA to Enrollment Systems.
• Troubleshoot and resolve production issues
• Worked on Veteran Benefit Administration BGS (Benefit Gateway Services) projects. Duties include web services development and support for VBMS-A using
• Developed web services using core Java/J2EE technology.
• Used SOAP web services to exchange information
• Applications Integration using web servcies such as JAX RS and JAX WS.
• Used JPA/JDBC for Oracle Database data retrieving and manipulation.
• Worked on Legislation Change LC4 (Self-Identified Gender Identity) and LC 5 HBP (Health Benefit Plan) software development for VHA Enrollment System.
• Analysed, developed the front end components using JSP, JavaScript, HTML, Struts and spring framework.
• Developed, tested middle tier and back end services using business logic using core Java/J2EE technology, ILOG rule engine, Hibernate, Quarz Clock Scheduling, Weblogic server and Oracle database.
• Worked on VBA VETSNET middle tiers development on VDC, VNP, VRM, VBMS-C and Caregiver.
• Analyzed, developed, implemented and tested web services related software in feature enhancements, remedy tickets, troubleshooting and production support etc.
• Worked on Enrollment System Redesign (ESR). Projects included Add A Person, Public Law, VBA Data Sharing, Military Services Data Sharing, Veteran Financial Assessment, and Veteran Online Application etc.
• ESR software architecture stack used the following technologies and tools: J2EE, WebLogic, Spring, Hibernate, Oracle, ILOG JRules, JMS, HL7 and Struts.
• Work duties included UI component using JSP, JavaScript and Struts framework, backend business logic ILOG rule engine, hibernate data mapping, inbound and outbound HL7 Messaging processing, retrieving data object from database and creating new batch jobs etc..
• Involved in all phases of software development life cycles - design, analysis, development, testing in the enhancements of ESR systems.
• Did troubleshooting and resolved production issues .

Confidential

Infrastructure Specialist

Responsibilities:

• Worked as web administrator supporting General Motor Global Service middleware products.
• Provided 24x7 support for Web Servers ( Sun One Web Server 6.0 and 6.1 ) and Application Servers ( Weblogic Server 7.0, 8.1, 9.2 , Sun One Application Server, Apache and Tomcat) in Sun OS, Solaris, HP-UX and Window environments.
• Tasks included server migration, configuration tuning, performance monitoring, patching and installation, server license installation, application code deployment, content promotion, troubleshooting production issue, break fix, configuration change, JDK upgrade, SSL certification installation, control tool management and etc.
• Followed ITIL foundation process to work on incident management, problem management, change management and release management.
• The task involves other teams (SA, BUR, Managed Storage, Network and DBA etc.)
• Worked as Web Administrator supporting Sabre and other airline accounts ( iPlanet Web Server, WebLogic Server 7.0, 8.1, 10.3, 12.2 Websphere Server , Apache and Tomcat).

Confidential

Senior Software Engineer

Responsibilities:

• Worked on one of the company’s critical projects, the pharmaceutical Supply Management Online (SMO) Ordering System, including design/code development/test/debug/documentation for feature enhancement and production troubleshooting.
• The system was built in UNIX platform based on J2EE architecture spec and MVC design pattern using HTML JavaScript, JSP, Servlets, EJB and JDBC.
• The application server was WebLogic 8.1 , Database server was Oracle .
• Worked on SMO Report & Analysis to provide customers with real time purchase history data in multiple formats.
• This system was a web based application using HTML, JSP, JavaScript, Servlets and Java Beans .
• The application server is WebLogic 8.1 and Database server was Oracle.
• Involved in SMO Account Management project, whose front end was a web application based on Microsoft ASP, VBScript and IIS NTserver, to provide customers account access for authorizing payments and reviewing outstanding invoices, chargeback, credit memos and other transactions data persisted in Oracle database.
• Created and maintained documentation on programs and systems according to company methodology.

Confidential

Lead Web Developer

Responsibilities:

• Worked as a lead web developer to build healthcare coding and documentation systems.
• This was a Web application based on J2EE architecture specification and MVC design pattern.
• The front end was developed in HTML , JavaScript and JSP. The backend was built with Servlets, JDBC and EJBs to access/manipulate data inside Microsoft SQL Server database.
• Led in development and implementation of web based Gas Wizard, an Anesthesia Coding and Documentation System, with Secure Socket Layer (SSL) and two-factor authentication.
• The presentation layer was developed in JavaScript, HTML, and CSS and the backend was developed in Java Servlets and JDBC t o provide dynamic content and data manipulation.
• This project was outsourced and had no documentation.
• I took it to be a SSL enabled with full functionality product in 3 months.
• Assisted with Management to get HIPPA compliance certificate for the company.
• Analyzed requirement specification, designed and developed Pain Management System using HTML, JavaScript for front end validation, and Java Bean, Servlets and JDBC for business rule logic engine.
• Migrated old Gas Wizard and Pain Management application from Apache/Jserv to JBoss/Tomcat server and integrated as one new application program.
• Enhanced Operation Room Preoperative Record Documentation and Management System using Visual Basic and migrated it from MS Access to MySQL .
• Worked as System Administrator to configure Apache/Tomcat/JBoss web application servers , configured Internet network, monitor system performance, added/modified checkpoint firewall security rules, wrote UNIX shell scripts to schedule jobs, automated system maintenances and supported multiple UNIX systems.