Linux System Administrator

Key Responsibilities:

• Act as the first point of escalation for technical and process-related issues.
• Provide technical expertise and ensure timely resolution of critical incidents.
• Perform root cause analysis (RCA) for major incidents.
• Plan and execute changes in coordination with stakeholders.
• Handle service requests and incidents within agreed SLAs.
• Perform trend analysis and drive incident reduction initiatives.
• Troubleshoot hardware issues and coordinate with vendors.
• Contribute to service improvement and optimization programs.
• Support new server builds, OS upgrades, and migration activities.
• Automate routine tasks using shell/Perl scripting.
• Train and mentor new team members.
• Ensure adherence to security, quality, and ITIL processes.

Qualifications and Skills:

Technical Skills (Must Have):

• Strong expertise in Linux Administration (RHEL, CentOS, SUSE)
• Hands-on experience with KVM and virtualization
• Expertise in LVM configuration and management
• Experience in Satellite Server management and configuration
• Knowledge of Dell and HP server hardware and firmware upgrades
• Strong skills in advanced shell scripting
• Experience in RedHat/Veritas cluster configuration
• Knowledge of NIS/NIS+ and DNS configuration
• Experience in patch management and OS recovery
• Hands-on experience in NFS and automount configuration
• Expertise in OS crash analysis and performance tuning

Secondary Skills (Nice to Have):

• Experience in AIX system administration and IBM Power Systems (POWER7/8/9/10)
• Knowledge of HMC, LPAR/DLPAR, PowerVM, VIOS administration
• Experience in PowerHA (HACMP), clustering, and failover testing
• Experience in OS migrations using NIM and firmware updates
• Knowledge of Solaris (8/9/10/11), Zones, and LDOM administration
• Familiarity with Oracle Ops Center tools
• Knowledge of storage technologies (SVM, VxVM, ZFS)
• Exposure to VMware environments
• Cross-domain knowledge (Storage, Backup, Database, Middleware, Network)