System Administrator Resume
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WORK EXPERIENCE:
Confidential
System Administrator
Responsibilities:
- 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 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 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
- Web server administration
- Update mime types on Web Server
- Web Server external redirection
- Provide web server and web application monitoring across all the environments
- Capacity REPORTING
- Generate weekly and monthly Capacity reports
Confidential
Production Support, Middleware administration
Responsibilities:
- Weekend Application recycles.
- Co-ordinate Scheduled Weekend Changes
- Involvement in Deployment activities
- 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
Confidential
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).