Linux Admin L2

• Key Responsibilities • Handle L2 escalations for Linux OS issues (RHEL / CentOS / Ubuntu / SUSE) • Troubleshoot boot issues, filesystem errors, performance bottlenecks • User & access management (LDAP/AD integration, sudo, PAM) • Manage services: systemd, cron, rsyslog, sshd • Patch management & package updates (yum/dnf/apt/zypper) • Monitor system health (CPU, memory, disk, I/O) • Basic security hardening and compliance fixes • Support VM environments (VMware / KVM) • Backup/restore support and log analysis • Coordinate with L3 teams & vendors when required • Maintain operational documentation and SOPs • Technical Skills • Linux administration (3–6 years) • Filesystems: ext4, xfs, LVM • Networking basics: TCP/IP, DNS, NTP, SSH • Shell scripting (basic–intermediate) • Monitoring tools: top, vmstat, iostat, sar • Ticketing tools: ServiceNow / Remedy / JIRA