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System Administrator Resume Profile

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HyderabaD

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Work Experience

Company : Confidential

Roles : System Administrator

Company Confidential

Roles : Production Support ,Middleware administration

Company : Confidential

Roles : Linux administration, Level 1 support on Production.

Infrastructure and Applications and Supported

Infrastructure:

  • 500 UAT Test , Stage and Production Servers running on UNIX and Linux in Data Centers.
  • 450 comprising of BEA WebLogic 8.x/9.x/10.3.

Applications:

  • WebLogic environment serving 35 Applications in Test, Stage and Production environment.
  • Job Activities

WEBLOGIC APPLICATION SERVER

  • Weblogic Application Server L2-administration activities.
  • Create new Weblogic application servers .
  • Support deployments across all the environments
  • Weblogic application server administration
  • Provide on-demand performance analysis for problematic applications
  • Support JVM recycling for necessary environments

Tomcat APPLICATION SERVER

  • Tomcat Application Server L2-administration activities.
  • Create tomcat setups in production as well as Development/UAT.
  • Support deployments across all the environments
  • APR compilation, Software loadbalancer HAPROXY setup.
  • Provide on-demand performance analysis for problematic applications
  • Application Load test on multiple tomcat instances

JBOSS APPLICATION SERVER

  • JBOSS Application Server L1-administration activities.
  • Create setup for Develeopment and QA environment.
  • Support deployments on Develeopment and QA environment.
  • Provide on-demand performance analysis for problematic applications

APACHE WEB SERVER

  • Web server administration
  • Update mime types on Web Server
  • Web Server external redirection

MONITORING ALERTS AND EVENTS

Provide web server and web application monitoring across all the environments

Capacity REPORTING

Generate weekly and monthly Capacity reports

Weblogic administration Responsibilities:

  • Performed J2EE application deployment and administration including JAR, WAR, and EAR files on different environments QA, Stage, and Production .
  • Worked with Data base team to resolve permission issues, connection pool issues on Stage environment.
  • Involved in Performance tuning of Web Logic server with respect to heap, threads and connection pools.
  • Ability to troubleshoot problems and analyze performance statistics related to web architecture and applications in conjunction with development team, networking team, and vendor.
  • Deployed the applications on multiple WebLogic Server and maintained Load balancing, high availability and Fail over functionality.
  • working knowledge of Monitoring Tools especially on Big Brother.
  • Setting up new applications in various environments.
  • Configured on JMS, JDBC and Connection pools.
  • Automated WebLogic Server Administrative tasks.

Unix/Linux Administration responsibilities:

  • Troubleshooting problem tickets and service tickets.
  • Working experience on production support.
  • Involving change activities.
  • Kernel upgradation Upgraded kernel update 6 to update 7 .
  • DST patch installation on Linux servers.
  • Automating the regular tasks through Shell Scripts.
  • Configured raid 0,1 and raid 5.
  • Installation linux servers through kick start.
  • Coordinating with data center touch labors and replaced NIC in LINUX servers.
  • LVM and logical volume creating, size extending reducing
  • Documenting technical issues.
  • Configured Network redundancy using bonding
  • Configured Virtual Network interface
  • Performance monitoring
  • Analysis of availability, configuration management for reporting to customer.
  • Daemon Process management stopping, starting, refreshing .
  • File transfer across systems using ftp.
  • User management creating users, assigning permissions .

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