Websphere Engineer Resume
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WORK EXPERIENCE:
Websphere Engineer
Confidential
Responsibilities:
- Successfully upgraded and migrated several Java Applications from Websphere 6.1 on Windows to version 8.5 on Linux.
- Build out new environments for several new Java applications.
- Automated deployments and configurations using jython and shell scripting.
- Unit tested applications with the development teams in order to resolve issues in the QA and prod environments.
- Built out and supported several new Websphere Portal 8.5 environments on Linux.
Websphere Admin
Confidential
Responsibilities:
- Installed and configured Websphere Application Server 8.5.
- Daily support and troubleshooting of applications installed in WAS 7.0 and 8.5 environments.
- Work with development teams to deploy new applications from development to production.
- Trained new offshore java development teams on Websphere implementations
Websphere Process Server Application Support Specialist
Confidential
Responsibilities:
- Monitor Websphere and Process Server applications for abnormal activity
- Develop Jython and shell scripts to monitor Websphere and Process Server components
- Jython scripts were developed to interface using the Perfmon Mbean to talk to the Tivoli PMI endpoints and retrieve current values
- Shell scripts were developed to compare existing Tivoli values to thresholds and then to send alerts to responsible parties
- Supported development and deployment teams to help resolve various Websphere related issues
Websphere Process Server Admin
Confidential
Responsibilities:
- Websphere Process Server SME consultant on the ICE Homeland Security Project.
- Setup and managed pools in the F5 load balancer
- Created jython scripts to automate configuration and post deployment tasks.
- Update websphere flat file adapter j2c activation spec using adminconfig commands
- Change eventDirectory custom property
- Modify wsSCAimport binding using admintask commands
- Modify jndi resource references mapped to ejb modules
- Paramaterized scripts using UNIX shell script wrappers to accept dynamic input
- Creating new thread pool mappings for j2c activation specs on Application Servers
- Updating the Thread pool alias for Platform Messaging Resource Adapter
- SPI Resource Adapter to use new thread pools.
- Work with performance team to determine optimal maxConcurrency value for each activation spec - starting at the default value of 10.
- Working with development teams to resolve synchronous threading to asynchronous threading issues. Asynchronous threading by application was using up all threads.
- Configuring jdbc configuration bindings, Correcting j2cauthentication data
- Creating Websphere variables and Jdbc driver paths
- Set optimal jvm heap sizes for dm boxes
- Encrypt environment passwords in soap.client.properties files
- Configured buses, bus destinations, queue connection factories, queues, new CEI event groups and destination queues, new activation spec jms queue
- Created Subversion script repositories for sharing code
- Created Websphere DataPower Webservice Proxy Domain
- Fixed CEI issue with gold topology. Process Server 6.1 bug - used fully qualified jndi name with correct cluster reference in order to resolve issue
- Resolved Process Server Edit Business Data issue for applications mapped to web and application servers during deployment. Opened a PMRs and applied patches.
- Corrected database type and implementation class issues, XA vs non XA
- Corrected j2cactivation spec issues. They were not removed upon uninstall. Therefore deleted old mappings once to resolve the issue
- Updated CEI Event service security role mapping issue -- to everyone from all authenticated to resolve application CEI access issue
- Corrected sca component resource mapping login authentication issue, fixed wrong node in parameter
Sr. WebSphere Engineer
Confidential
Responsibilities:
- WebSphere Portal, Application Server and Process Server SME on US Customs Project Deploy and Administer WebSphere Portal 5.0 and 6.0 Applications
- Assist troubleshoot WebSphere SAP Adapter issues and WebSphere MQ issues Automate installation, configuration and deployment using Unix shell scripts, jacl and jython scripts.
- Upgrade and Migrate Portal 5.1 to 6.0, and Process Server 6.0 to 6.1.
- Configure WebSphere 5.1, 6.0 and 6.1 to work with the following technologies: Confidential LDAP, ITIM, DB2, Veritas HA, WebSEAL, SAP, MQ, AIX, WebSphere Process Server.
- Worked in production support role providing 24-hour high availability support.
- Designed and tested technology upgrades as they came out. Initiated new product upgrades research and then implemented upgrades across the development and production environments.
- Tested product configurations for optimal performance and resource use.
- An example includes researching and determining the optimal number of WebSphere Portal DB2 databases for the production environment.
Sr. Infrastructure WebSphere Engineer
Confidential
Responsibilities:
- WebSphere Commerce, Application Server SME on US Mint Project Lead a Web Capacity upgrade project that consisted of migrating US Mint WebSphere Commerce environments running on WAS 5.0 and WC 5.6 on a Solaris 5.8 platform to new Solaris 8 servers.
- This required migrating the web and application servers.
- This required shell scripting as well as knowledge of SAN infrastructure and Solaris RAID 5. This project was extremely successful and resulted in the US Mint being able to process a record number of orders on product drop dates. Worked with OS team to backup and migrate specific application server configurations.
- Researched and implemented performance enhancement metrics for the WebSphere environments.
- This included changing JVM heap sizing such as Eden, survivor, tenured and permanent ratios, changing threading models and implementing http compression.
- Troubleshoot and administer IHS 2.0.42.1 and SAMBA 3.0.
- As well as other day to day WebSphere related issues.
- Assisted in troubleshooting network interface and iSeries issues. Assist troubleshoot WebSphere MQ 5.3 issues.
Senior WebSphere and Siteminder Engineer
Confidential
Responsibilities:
- Built out several WebSphere Application Server 6 Network Deployment environments on AIX 5.3, Solaris 8, Linux and Windows.
- These environments were maintained on several operating systems.
- Maintained the WebSphere Application Server 4.0 applications and worked to solve application issues.
- Migrated the WebSphere 4.0 applications running on Sun OS 8 to WebSphere Application Server ND 6.0 running on AIX 5.3.
- Installed and configured Siteminder 6.0 policy server and web agents.
- Responsible for building and maintaining policies.
- The Siteminder installations were then integrated into the WebSphere 6 environments.
- Worked with CA support to troubleshoot issues and resolve tickets.
- Administered Sun LDAP 5.2 to work with Siteminder 6.0.
- Siteminder userstores and policystores were maintained in this version of LDAP.
- Enabled userstore and policystore replication across several environments.
- Administered WebSphere MQ Series 5.3.
- Built queues and channels to integrate into the WebSphere 6 applications.
- Deployed and configured several custom built J2EE applications on WebSphere 6 and JBoss.
- The applications used Hibernate for jdbc connection pool management. Generated thread dumps and heap dumps to analyze application issues.
- Used tools like thread analyzer, Heeproots, IBMHAT, Tivoli Performance Viewer, and Wily Introscope to troubleshoot problems.
- Setup SAML producer and consumer environments for Single Sign on using the CA Siteminder solution.
- Installed and configured a web services environment using JBoss, IHS and Siteminder Transactionminder.