Engineer Manager
Resume:
VamseeKrishna Garikapati
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PROFESSIONAL SUMMARY
Over Eight years of progressive experience in Weblogic Administration.
Involved in Administration and Maintenance of SUN Servers.
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Installation, Configuration & Customisation of RedHat Enterprise Linux on Dell poweredge
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based systems.
Administering Weblogic (6.1, 7.0, 8.1, 9.2 and 10.3) Servers.
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Administering Iplanet and SunOne 6.0 Servers.
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Installed and configured Sun ONE, Apache, Tomcat, Iplanet, IIS and IBM HTTP Web
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Servers.
Automation of daily jobs, backups using shell scripts.
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Provided 24/7 on call support in production environment on rotation basis.
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Experience in maintaining Load balancing and high availability.
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Monitored WebLogic server resources using Wily Introscope.
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Experience in analyzing the various server logs and thread dumps to perform Root Cause
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Analysis.
Deployed applications on multiple WebLogic Servers and maintained Load balancing,
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High Availability and Fail over functionality.
Created SSL and Digital Certificates for secured communication between applications using
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keytool.
• Developed the log rotation and monitoring scripts using WebLogic.Admin utility.
Worked on Operating Systems like Windows (2000, 2003, Xp), UNIX (HP UNIX, AIX), Linux
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(Redhat) and Solaris.
Strong experience in functional and technical knowledge of oracle SOA.
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TECHNICAL EXPERIENCE
Operating Systems Windows 2000/2003/NT/XP, RedHat Linux, Solaris and AIX
ProgrammingLanguages Java, J2EE, C, Unix Shell Scripting, PERL
Databases DB2, Oracle8/9i/10g and SQL server 7.0
Web Servers Apache, Tomcat, IIS 4.0/5.0, Sun ONE 6.0
Application servers Weblogic 6.x/7.x/8.x/9.x/10.x
Web Technologies JDK 1.6, J2EE, Servlets 2.3, JSP 1.2, EJB 2.0, JDBC, JNDI, JMS,
LDAP, VoiceXML (VXML), CCXML, Cold Fusion MX.
Tools Wily Introscope, Samurai, clear case
VamseeKrishna Garikapati
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Build Tools ANT,CVS,MAVEN
CERTIFICATIONS
BEA Certified WebLogic Server Administrator
PROFESSIONAL EXPERIENCE
Weblogic Administrator, Ally Bank, Charlotte, NC. Jul 12 – Present
Deployed applications (WAR, JAR, and EAR) in Domain and Clustered environments of
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WebLogic 9.2/10.3
Effort was spread across multiple domains, from setting up F5 BIG IP load balancers,
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working on MySQL replication, as well as general Linux systems administration.
Configuration, Installation and administration of Weblogic in 9.x / 10.x on Linux servers.
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Remote support for production servers and applications.
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Performing daily checkups and manual workarounds on production environment.
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Responsible for F5 Support and Management.
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Responsible for deployment of applications, performance tuning the application server and
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configuring JDBC, connection pools and JMS server.
Installation and configuration of Apache 2.4.1
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Implementing change requests and trouble shooting the issues by analyzing thread dump
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and heap dump.
Configure and administered of Web logic server 10.3 with Oracle10g database.
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Analyzed application health and performance using Fog light.
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Extensive experience in troubleshooting WebLogic Production problems and resolve the
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Customer facing application issues.
24X7 On call support for production and non production environments which included
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product test, staging, training and break fix environments.
Environment: Web logic 9.2/10.3, Apache 2.2/2.4,Tomcat, F5 BIG IP load balancers, Solaris 9/10,
Linux 8.1, Windows 2003/200/XP/NT 4.0/9x, Foglight, Siteminder, Exchange server 2003 and
Outlook clients.
Weblogic Administrator, JPMorgan Chase, Chicago, IL. Aug 10 – Jul 12
Responsibilities:
Worked 24 * 7 primary on call support.
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Configuration, Installation and administration of Weblogic in 9.x / 10.x in various
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environments.
VamseeKrishna Garikapati
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Managed server transition from Apache 2.0 to Apache 2.3.
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Used Wily interscope for monitoring Weblogic.
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Configuration and monitoring of JDBC connection pools.
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Worked closely with BEA WebLogic Technical Support Team in resolving the WebLogic
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critical issues, and followed up on the opened tickets by analyzing the respective thread dumps and
config files.
Manage WebLogic clusters, domains having 20 30 managed servers on cluster of machines
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in each environment.
Deploying the application to a server using WLST (Weblogic Scripting Tool).
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• Installation of Patches and service packs to Weblogic.
• Used ActiveVOS to integrate the data and Application programming interfaces of mission
critical back office applications and expose them as reusable services.
• Worked on developing and deploying business processes orchestrated in BPEL using
ActiveVOS 9.0.2 SOA.
Configured and setup (SSL) for Data encryption and client authentication.
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• Managing the User accounts and assisting users on the applications.
• Configuring individual servers for different environments.
• Tuned the WebLogic JVM Heap Sizes by adjusting the MIN, MAX and Nursery Sizes in
Production and Staging Environments.
• Created automated scripts to create domain and domain configuration using WLST Jython
scripts.
• Provided support for Linux and Solaris based Weblogic servers and applications across
different environments.
• Support Business Objects and Data Stage apps.
• Closely worked on DR rehearsals and configured the PROD and DR environments
• Configured Node manager to administer the Managed servers.
Writing Scripts using UNIX Shell, Jython and also scheduling cron jobs.
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Creations Site’s using sharepoint and trouble shooting the issues.
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Involved extensively in coding build scripts using ANT.
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Environment: Web logic 10.3, Apache 2.4/2.0,IIS, F5 BIG IP load balancers, Java, Business
Objects, Solaris 9/10, Linux 6, AIX,Windows 2003/200/XP/NT 4.0/9x, Siteminder, Ldap,
Exchange server 2003 and Outlook clients.
Sep 09 – Jun 10
Weblogic Engineer, Verizon, Irving,Tx.
Responsibilities:
Deployed WAR, JAR and EAR applications in clustered WebLogic 8.1/9.2/10.3 for System
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Test and Pre Production environments.
Configure and administered of Web logic server with Oracle9i database.
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Configure and administered of JDBC, JMS, JNDI, SNMP in Weblogic Server 9.2/10.3.
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Performance tuning the application using jprobe and optimizerit profiler’s.
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Web Servers IIS and iPlanet configured with standalone Managed Servers and Clusters of
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managed servers.
VamseeKrishna Garikapati
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Configure Clustering EJB objects, JDBC connections and JMS connection factories.
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Implementation and configuration knowledge of HP Operation Orchestration and HP
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Server Automation.
Used HP open view to work on incidents.
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Monitoring tools/scripts to get important information from all of department’s server’s
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operating system and application patch level, disk space and memory usage, user’s activities on
day to day basis.
Build and maintain the SOA cluster.
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Developed scripts to monitor JDBC Connection Pool Status, JVM Heap Size, and JMS
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Messages in the destination queues in the production environment.
Expertise in Handling Code Releases and Deploying applications in Production.
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Configuring Site minder web agent for Iplanet and IIS to contact Siteminder policy serves
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for user Authentication and Authorisation.
Responsible for installing and managing IBM MQSeries and all middleware software.
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Created data sources, JMS servers, JMS destinations.
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Set up Cron job for various processes/nightly batch jobs that run in Production, Training and
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QA environments.
Used Hp OpenView to work on tickets.
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Environment: Web logic 6.1/7.0/8.1/9.2/10.3, WebLogic Portal 8.1,IIS, iPlanet 6, Apache
2.2/2.0/1.3, MQ, Oracle SOA Suite 10.1.3, Oracle SOA Suite 10.1.3.4, Ant 1.6.2, Oracle 10g, Java,
Web Services, JDK1.6, J2EE,Solaris 9/10, Linux,Windows 2003/200/XP/NT 4.0/9x, Siteminder,
Ldap.
Weblogic Administrator, JP Morgan Chase, Dallas, TX. Aug 07 Jul 09
Responsibilities:
Worked 24 * 7 primary on call support.
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Configuration, Installation and administration of Weblogic in 9.x and 10.x.
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Used Willy interscope for monitoring Weblogic.
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Interacted with Business User (business stake holders) for Functional and Technical Issues.
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Analyzing Thread Dump using TDA.
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Provided technical support / direction to developer's team working to create stable,
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conventional and effective message broker components.
Developed startup and shutdown scripts for the servers.
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Managed server transition from Apache 1.3 to Apache 2.0.
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• Installation of Patches and service packs to Weblogic.
Creations Site’s using sharepoint and trouble shooting the issues.
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Installed and upgraded MQSeries in Windows based environments. Windows 2000, 2003,
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and Windows XP.
Involved extensively in coding build scripts using ANT.
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Configuring Siteminder web agent to contact Siteminder policy serves for user
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Authentication and Authorisation.
Production Support Engineer,
Sprint, Overland Park, KS. Sep 06 Aug 07
Responsibilities:
Installed, configured and maintained Weblogic (7.0, 8.1, 9.2) server administration on Solaris
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SPARC 2.8 systems
Installed and configured Apache, Tomcat and iPlanet to work with weblogic server.
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Deployed WAR, JAR, EAR applications in Weblogic 8.1 & 9.2.
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Configure and manage AquaLogic Service Bus (ALSB).
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• Performed Upgradation of weblogic 8.1 to 9.2.
• Utilized Oracle Enterprise Manager and DB Artisan for database monitoring and
management.
Handling Scripts using Unix Shell Scripting.
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Administration and Maintenance of Appserver, Webservers, Siteminder & Sunone
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Directory servers (LDAP).
Performance tuning, application deployment and testing BEA Weblogic Tools and BEA
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Weblogic Console.
Configured Authentication for web sites using SiteMinder Policy server 5.5
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Used WLST for performance monitoring, hot deployment and created domains using
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WLST/Jython scripts.
On call support to testing team in emergency.
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Configured and maintained Clustered as well as non clustered Web Logic environments.
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Weblogic Admin, Credit Suisse, Singapore J ul 05 Aug 06
Responsibilities:
Responsible for supporting critical financial applications running on web infrastructure Unix,
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Iplanet, Weblogic Clusters,IIS protected centrally by Siteminder policy server CMS. Content
management by Teamsite and Opendeploy & Content Collaboration through Sharepoint.
Involved in WebLogic 7 to WebLogic 8.1 upgrade, JVM upgrade, JDK upgrade.
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Monitoring the environment through tools like Sitescope and BMC Patrol. Analyse the issue
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after detailed throubleshooting of the alert and make sure that the issues are fixed & the alerts are
cleared as per SLA.
Experience in Installation and configuration of Siteminder Policy server 6.0 and Webagents.
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Performing new Siteminder Policy configuration for authentication and authorization for new
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sites.
Troubleshooting Siteminder related issues and providing resolution to the Development team.
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Implementing RFC’s (Request for Changes) on production environment for web applications
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running on Weblogic, Iplanet, IIS protected by Siteminder as part of Global Change management.
These RFC’s include the changes to policies in Siteminder.
Weblogic Admin, Thomson Financials, India. J an 04 Jun 05
VamseeKrishna Garikapati
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Responsibilities:
Configured and setup Secure Socket Layer (SSL) for Data encryption and client
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authentication.
Coordinating the Development and Testing teams during the release process with the release
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teamMonitoring the startup logs for any exceptions or errors..
Provided 24/7 on call Production Support.
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Determined problems in deployments using error logs.
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Installed and configured Sun ONE web servers for Application servers.
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Configure JNDI server as repository for EJB Home stubs, JDBC data source, JMS
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connection factories, queues and topics.
Installing and configuration BEA Weblogic Application Server.
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Deploying Hotfixes and releases.
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Configured and maintained WebLogic server with JDBC, JMS, JNDI, SNMP and J2EE
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Services and data sources with Oracle database server 8.x
Installed and configured LDAP Server and integrated with WebLogic Application Server
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6.1/7.0
SiteMinder 6.0 Installation, configuration and administration.
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Troubleshooting and fixing of problems on WebLogic Application Server.
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Monitored and fixed the error logs, tuned parameters on WebLogic environment.
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Configure JNDI server as repository for EJB Home stubs, JDBC data source, JMS
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connection factories, queues and topics.
Applying the patches to the WebLogic servers.
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Tuned TCP/IP, JVM’s, JVM heap size, garbage collections, Java stack, Native thread.
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