Yogeshwaran Thirunavukkarasu

Administered Linux distributions (RHEL, SUSE, Ubuntu, CentOS) across a large server fleet, handling OS lifecycle tasks and patching under approved change processes. Managed user and access administration, LVM provisioning/expansion and filesystem resizing, and supported troubleshooting using system logs and services. Supported bare-metal provisioning and AI/GPU operations, including health checks, firmware/BIOS upgrades, hardware replacements, and vendor escalations. Coordinated incident response through ticketing workflows and contributed to RCA documentation with L3 guidance.

Handled Linux production operations including OS patching, in-place upgrades, and access control in a multi-SLA environment. Performed LVM disk management (VG/LV operations and filesystem/swap resizing) and supported core Linux services and diagnostics. Provided monitoring support using Zabbix alerting and managed Linux-level investigations during higher-priority incidents with guidance for RCA creation. Worked with change-management processes and service ticket workflows to deliver reliable OS operations.