SUMMARY:

• Full range of IT experience spanning over 17 years
• Extensive successful experience as a hands - on technical lead on Middleware administration, Middleware system architectural planning/sizing/design, troubleshooting and problem solving
• 15 year experience on WebSphere Application Server administration for mission critical applications
• 13 year experience on WebSphere MQ administration, MQ Internet pass through and Confidential Tivoli Enterprise Monitor for MQ messaging
• 6 year experience on WebSphere Message Broker administration
• 6 year experience on Single Sign On (Ping Federate) over SAML
• 4 year experience on Web Method (IS cluster/Terracotta/My WebMethods/Insight) from Software AG
• 4 year experience on Layer 7 SecureSpan Gateway over SOA, web service
• 4 year J2EE application development including de-bugging and troubleshooting
• Extensive knowledge of Enterprise application infrastructure, F5 BIG-IP, fail-over, Firewall, SSL/TLS protocol. Subversion, Load Runner, Veritas Cluster Software, Splunk and Confidential License Metric Tool
• People and technical leadership; Strong communication skills; able to put complex technology concepts into plain language

PROFESSIONAL EXPERIENCE:

Confidential, Los Angeles, CA

Sr. Middleware Consultant and team technical lead

Responsibilities:

• As a technical lead, 24x7 supports the most mission critical applications deployed in WAS in the Bank
• Middleware Architectural, Topology Design; size planning and license tracking
• Use Network Development Edition and create WAS cluster for load balance, high availability and fail-over
• Work closely with load balancer and network team to trouble shoot connection and performance issue
• WAS management automation with Jython/wsadmin script
• Setup and create conditions using Splunk and trigger email alerts when fault is detected
• Use Splunk to analyze WAS/IHS log in short or long time-span
• Work closely with application support team to troubleshoot and resolve issues with Optier, CA Wily Introscope, DynaTrace, ITCAM ( Confidential Tivoli Composite Manager), WireShark and Fiddler
• Run Confidential License Metric Tool to track and report PVU counts for all Confidential products including WAS, MQ

WebSphere MQ v5.x/6.x/7.x/8.x/9.0 Administrator

Confidential

Responsibilities:

• Support Confidential MQ multi-instance Queue manager and MQ Cluster for Fail-over and High Availability. HA is managed by Veritas Cluster Software.
• Control MQ Security through Channel Authentication Records and Mutual TLS
• Data Replication from Prod to DR
• Add MQ Internet Pass Through in DMZ when MQ client connect to MQ through internet
• ITCAM ( Confidential Tivoli Composite Application Monitoring) for MQ messaging. Send alerts when predefined situation meets certain threshold

WebSphere Message Broker v7.x/8.x Administrator

Confidential

Responsibilities:

• Message format transformation
• Support SAML 1.0/2.0. Setup identity provider and service provider. SMAL document signing and Mutual SSL/TLS communication.
• Metadata.xml exchange between IdP and SP
• Back bone of Enterprise applications in the Confidential . Integration Server v8.2 and v9.6 cluster using Terracotta with WebMethod for KPI/OFI and Insight for troubleshooting
• Acquired by CA, Layer 7 SecureSpan Gateway is competitor of Confidential Data Power. It is used in front of ESB and provide web service endpoint for ESB
• Track and report all Confidential software license bank-wide for audit compliance

Confidential . Columbus, Ohio

WebSphere Application Server and MQ administrator

Responsibilities:

• Nationwide is a big Confidential client and Confidential helped build IT infrastructure for Nationwide
• 24x7 Support and manage WebSphere Application Server and MQ
• Install, configure and deploy applications in WAS
• Install, configure MQ and 24x7 support
• Work closely with application team to trouble shoot issue and provide solution

Confidential, Atlanta, GA

WebSphere Application Server Support

Responsibilities:

• Trouble-shoot and resolve WAS problem for customers from North America, who open PMR in Confidential support site
• Focus on PMR on Handle client, server SSL certificate and SSL handshake
• Focus on PMR on JDBC connection pool and JMS Queue Connection Factory connection

Confidential

WebSphere Application Server Administrator and Performance Specialist

Responsibilities:

• Work in Confidential WAS performance team
• Install, configure WAS v5.0 cluster and install WebSphere Commerce V5.6 B2C Store
• Analyze network latency cross Confidential sites and server resources
• Create load testing plan using SilkPerformer script
• Analyze performance impact when adjust WAS parameters in high value load for dynamic cache, disk off-load, JVM parameters, JDBC connection pool setting, etc.
• Analyze result and provide feedback to Confidential WAS development team

Confidential

Application developer

Responsibilities:

• Develop components of Web Health Care System - multi-tier web-based medical system, provides service between healthcare providers, patients, insured payer and other parties involved in medical activities
• Relevant Technology: Struts1.0.2, EJB1.1, JSP1.1, Servlet2.2, JDBC2.0, JNDI, XML parser, DataSource, Java Script, Java Beans
• Implemented patient management, appointment scheduling and claim management use cases
• Configure struts-config.xml file to manage workflow
• Developed FormBeans, Action classes by extending Struts framework
• Developed session beans to implement business logic and entity bean to access database table
• Developed ServiceManager as a service locator to look up EJBs Home to resolve the coupling of session beans and entity beans, make the project easy to maintain
• Unit test with Junit and error tracing with log4J