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Sr. Systems Administrator Resume

Phoenix, AZ

SUMMARY:

  • 9 years’ of experience in the field of Middleware and System Administration.
  • Experienced in change management process, release management and incident management.
  • 5 plus years’ experience with Oracle WebLogic Application Server Suite in both Windows and Linux.
  • 9 years’ experience in installation, configuration and management of JBoss and Tomcat Application Servers.
  • 5 plus years’ experience in installation, and Administration of IBM WebSphere and MQ.
  • 8 years’ experience in installing, configuring and tuning Apache Webserver.
  • Experienced in new infrastructure projects as well as data center migration.
  • Experienced in cloud migration of different applications and stacks.
  • Experienced in updating JAVA versions, Middleware Products in complex distributed environments.
  • Experienced in managing SSL certificates in Webservers as well as Application Servers level.
  • Experienced in integrating different Application Servers with RDMS such as Oracle and MS SQL.
  • Experienced in configuring Apache Web Server plugins for different application servers such as WebLogic, JBoss and Tomcat
  • Experienced in working with Cassandra and Hadoop ecosystem.
  • Experienced in JVM performance tuning and heap sizing.
  • Experienced in java application profiling to detect Memory Leaks.
  • Experienced in performance benchmark of java applications
  • Experienced working with different monitoring tools such as HP SiteScope, HP BSM, AppDynamics, Splunk
  • Successfully taken multiple of different enterprise applications to Production throughout the career.
  • Involved in infrastructure design, build, and documentation.
  • Good communication skills and ability to work in diverse teams across multiple locations.

TECHNICAL SKILLS:

Operating Systems: Solaris, Red Hat Linux, Windows server

Application Server: WebLogic Server 9.x/10.x/12c, WebSphere 7.0 - 8.5, JBoss EAP 5.0-7.0, Apache Tomcat 5.5/6.x/7.x/8.

Messaging Server: Active MQ, WebSphere MQ, Kafka

Web Server: Apache 2.2-2.4, Nginx, IIS

Scripting Languages: UNIX Shell, Python.

Monitoring Tools: HP BSM, HP SiteScope, Splunk, AppDynamics, Riverbed Central, IBM Netcool, Graphana

DevOps Tools: Jenkins, Build Forge, Maven, Artifactory, GIT, Subversion, Consul, Docker, ZooKeeper

PROFESSIONAL EXPERIENCE:

Confidential, Phoenix AZ

Sr. Systems Administrator

Responsibilities/Projects:

  • Migrated, installed and configured a .net application suite on Windows Server 2012 from Windows 2003.
  • Added 6 WebSphere JVMs in each production cell, across two data centers, total of 6 cells to increase capacity.
  • Added Coherence caching framework on top of Tomcat servers hosting a self-service customer business portal to provide cached responses.
  • SSL Support (Heartbleed, SHA1 to SHA2 Migration), Java Updates.
  • Configured Apache and Tomcat with Ping Federate SSO for two tactical applications used by business for tracking IT vendors.
  • Implemented SSL in MQ communication.
  • JDK Upgrades
  • Profiled Java applications using Eclipse MAT
  • Supporting Deployments/Releases
  • Documentation/New team member training

Environment: WebSphere 7.0-8.5, Coherence 3.7, JBOSS 6x/7x, RHEL 5x-7x, Windows 2003-2012, WebSphere MQ, Tomcat 7.0-8.0, Active MQ, JDK 1.6,1.7/1.8, Oracle 10g/11g/12c, Apache 2.1/2.2/2.4, Jenkins, Maven, Build Forge, GIT, Artifactory, IBM NetCool, Splunk, Graphana, Riverbed Central, BMC Remedy, Crucible, BIG IP F5 GTM/LTM

Confidential, Pittsburgh, PA

Sr. System Analyst

Responsibilities:

  • Installed, Configured and Administered WebLogic Server 12c domains for an enterprise inventory application.
  • Integrated WebLogic Application Servers with Apache HTTP Server.
  • Involved in migration of multiple java applications from WebLogic 9.2 to 12c.
  • Support and maintenance of Fusion Middleware Suite with 250 plus APIs.
  • Involved with the development teams in trouble shooting and fixing day-to-day problems of the applications.
  • Installed and deployed application on WebLogic application server and performed troubleshooting of issues related with deployments.
  • Applied patches and service pack updates for WebLogic servers.
  • Testing and profiling to measure the performance of applications.
  • Worked with development and testing teams to support build and release cycles.
  • Supported and managed multiple applications running on JBoss 7.0 and Tomcat 6-0-7.0
  • Provided SSL Certificate renewal support for many applications.
  • Performed scheduled maintenance activity on the application and webservers.
  • Involved in monthly release cycles for various enterprise applications.
  • Involved in triage and troubleshooting code issues and application issues in both tests and production scenarios.
  • Experienced in WLST, Python and shell scripting to automate tasks.
  • Worked on call 24*7 for the production environments.

Environment: WebLogic Server 10.0/10.3/12 c, JBoss 6.0-7.0, Tomcat 6.0-7.0, RHEL 5x - 6x, Sun Solaris 10, JDK 1.5/1.6/1.7, Apache 2.1/2.2, Oracle 11g/12c, MS SQL, AppDynamics, Splunk, HP SiteScope, CA Service Desk, Subversion, GIT, Jenkins

Confidential, Pittsburgh, PA

Systems Analyst

Responsibilities:

  • Installed, Configured and Administered WebLogic Server 11g in multiple environments.
  • Working with the team to develop WLST Scripts for automating deployments, control, and monitoring in WebLogic Server.
  • Installed, configured and maintained Apache Tomcat 5.5/6.0 with SSL and deployed the WAR applications on the server.
  • Configured and managed SSL certificates.
  • Supported multiple applications running on JBoss EAP 5.0 and Windows IIS Servers.
  • Involved in Root Cause Analysis, Troubleshooting Production issues.
  • Performance tuning and load balancing to ensure applications are available and working fine.
  • Performance tuning of JVM heap size.
  • Automated the Deployment process of J2EE applications in JBoss and Tomcat using UNIX Shell.
  • Installed and configured Apache HTTP Server 2.0 on Red Hat Linux.
  • Built central Log Archive Servers to archive Logs for several enterprise applications using rsync.
  • Created Cron scripts to monitor the disk space and zip the old logs, monitor the Server status and other routine tasks.
  • Enabled Log rotation for multiple applications for proper log management.

Environment: BEA WebLogic Server 11g/10.x/9.2, JBoss EAP 5.0, Apache Tomcat 5.5, Apache Web Server 2.0, Red Hat Linux 5.x-6.x, Oracle 11g, MS SQL Server 2005-2008, JDK 1.4-1.6, Introscope, HP BSM, HP SiteScope, Service Now

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