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J2ee Backend, Developer

SUMMARY:

  • Sr. J2EE / Java Consultant
  • I categorize myself as hands - on Sr J2EE / Java consultant. I own extensive architectural & technical knowledge in J2EE / Java under Oracle / IBM platform cross various industries (healthcare, utility, financial, manufacture, loan, etc.). I am also Sun / Oracle certified SOA / J2EE Expert.

TECHNICAL SKILLS:

Enterprise Software: Oracle Fusion Middleware (10g & 11g & 12c), Oracle Data Integrator (ODI), Oracle Identity Manager (OIM), OC4J, EBIZ, EnterpriseOne, MuleESB

Programming Languages: J2EE (JMS, JSP, Servlet, EJB, JMS, JDBC, JNDI, RMI), Web Services (SOAP, WSDL, JAXB, SAAJ, DOM, JDOM, SAX), JNI, XML Tool (XSLT, XPATH, XSD, CSS).

Server Engine: Weblogic (admin / dev), WebSphere, JBoss

Database: SQL & NoSQL

Open Sources: Spring (JDBC, Transaction, Unit Test etc), Spring Boot, Angular JS, Hibernate, Struts, Quartz, Junit, Castor, iText, Dozer, Jetspeed, Cactus, ANT, Maven

PROFESSIONAL EXPERIENCE:

J2EE Backend Developer 

Confidential

Responsibilities:

  • Backend Architect: Work with Confidential (Business Social Network) by use of Spring Boot as backend service and AngularJS as front end to build business social networks mobile app for restaurant vendors.
  • AngularJS $http consumes restful web services built by Spring Boot.
  • Spring Boot contains all logics to access data located at MySQL / MongoDB.
  • pring Boot sends verification code to customer cell phone;

Skills: Spring Boot, Angular JS, MongoDB

Integration Consultant

Confidential, Kansas City, MO

Responsibilities:

  • KCPL (Kansas City Power & Lightning): Work with Oracle CC&B (Premise, Service Order & Autopay etc.) and MDM (Energy Usage etc.) SOA integration architecture design & implementation for various utilities interfaces to access / provide Restful / http Web Service.

Skills: Restful / Http Web Service, Java / Spring / Hibernate, Restful / http Web Service, Oracle SOA / OSB / ODI.

Integration Consultant 

Confidential, Denver, CO

Responsibilities:

  • lead & implement IPAL download project by use of Oracle SOA / Enterprise Scheduler / JMS / J2EE Restful Services. Troubleshoot various issues from WebLogic Admin Servers / Clustered SOA Servers /etc. Create Enterprise Scheduler Service (ESS) jobs for nightly runs.

Skills: Restful / Http Web Service, J2EE / JMS / Spring / WLST / Maven, Oracle SOA / OSB / ESS

Integration Consultant 

Confidential, Denver, CO

Responsibilities:

  • work for Colorado Health Benefit Exchange (COHBE) to design interfaces which communicate data of individual or employer insurance enrollment information between Colorado State and different insurance carriers. I am mainly in charge of designing, reviewing, implementing and troubleshooting all B2B 834/820/999/TA1 data exchange tasks related to those interfaces. The main technologies I am using are Oracle Fusion Middleware & J2EE Web Services (ADF Faces, J2EE Web services).
  • work with fetching users & courses from Oracle Identity Manager by use of Java Web Services.
  • Work with J2EE system integration of refreshing the new registered users from Active Directory LDAP to Oracle Identity Manager by use of Google Juice Java Dependency Injection framework etc.

Skills: Java / JSF / JMS / Spring, Oracle SOA

Sr. J2EE Integration Consultant 

Confidential, Carlsbad, CA

Responsibilities:

  • Dash Board by use of ADF BC & faces; 2) Integrate Oracle EnterpriseOne with GES online biotech sales order system through SOA; 3) Design & Develop SOA Client Access to SAP through WebMethod Portal; 4) Promote Java code to web service so that Oracle SOA can access.

Skills: Spring / Hibernate / Struts / Ant, J2EE SOA Web Services, JAX-WS, JSF, Spring, Hibernate, Oracle SOA

Sr. J2EE Consultant 

Confidential, Denver, CO

Responsibilities:

  • Work with Lehman Brothers Automatic Underwriting Software, mainly built up SOA layer to connect to Fannie Mae Underwriting web services, and ILOG JRule engine

Skills: Spring, Hibernate, Maven, ILOG, SOA, JAX-WS.

Sr J2EE Consultant 

Confidential, Denver, CO

Responsibilities:

  • work on Confidential Transaction Management Service project. Design and implement Gift Card project. 2) re-architecture whole web service system.

Skills: Spring, Struts, Hibernate, Axis, WSDL, JMS, and MDB.

Sr. J2EE Consultant 

Confidential, Denver, CO

Responsibilities:

  • Work on Confidential Voyager Fleet Command Credit Card Online. 1) Design and implement Hibernate mapping and DAO pattern to implement business logic against database; 2) Use Web Services to communicate Oblix eDirectory; 3) Prototype, design and implement connector between J2EE application and Report Caster scheduling server.

Skills: Spring, Struts, Hibernate, EJB, WebSphere AS / Portal, SOA (SAAJ, JMS), WebFocus Report Caster V5.3, WSAD, UDB, JUNIT, Cactus, log4j, Oblix Access Server API / LDAP.

Sr. J2EE Middleware Developer 

Confidential, Denver, CO

Responsibilities:

  • XPI Integration with EnterpriseOne;
  • Develop EJB for EnterpriseOne with Eclipse, WSAD and BEA Workshop, and deploy & test web application on WebSphere AS / Portal and Weblogic.
  • Implement Web Search Engine with Java Native Interface and Verity Development Kits API.
  • Use JAXB to implement XML / Java Object Marshaling / Unmarshaling for Metadata XML Project.
  • Design, develop and maintain the middleware for EnterpriseOne.
  • Work on different projects to enhance EnterpriseOne web solutions, such as Optimal Data Retrieval, and Integrate JDBC with XML, 21 CFR audit & signature, IBM DB2/UDB JDBC solution, JAS logging, ERP-CRM JDBC solution, web database middleware re-architecture, OneWorld® JDBC Driver Tester etc.
  • Work with clients from different countries to resolve their issues of web applications on WebSphere and Weblogic.

Skills: EnterpriseOne XPI, EJB, JDBC, Verity, ANT, JAXB, WebSphere / Weblogic.

Sr. J2EE Developer 

Confidential, Lincoln, NE

Responsibilities:

  • develop e-business software by using Servlet/JSP/Apache/MySQL/Oracle Student Information Systems etc.

Skills: Servlet, JSP, JDBC.

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