L2 Linux Systems Engineer– (SUSE, RHEL & Ubuntu)

Position summary:

Responsible for L2 incident resolution, Linux system administration, performance troubleshooting, routine patching and security remediation activities. Works closely with L1, L3 SMEs and cross-functional teams to maintain infrastructure stability, availability and SLA compliance.

Key Responsibilities:

• Resolve L2 incidents and service requests related to Unix/Linux server operations.
• Administer and troubleshoot SUSE, RHEL and Ubuntu environments.
• Investigate CPU, memory, filesystem, disk space, process and system-service issues.
• Manage routine OS administration, users, permissions, packages, LVM, NFS, SSH, DNS and cron.
• Execute approved OS patching, vulnerability remediation and security hardening activities.
• Perform server maintenance, reboot validation, configuration changes and post-change health checks.
• Investigate monitoring alerts and support major incident restoration activities.
• Escalate complex issues to L3 with detailed diagnostics, logs and troubleshooting evidence.
• Follow ITIL Incident, Problem, Change and Request Management processes.
• Maintain runbooks, technical documentation and shift handovers.
• Coordinate with Storage/Backup, Network, Security, Database, Cloud and Application teams.
• Support DR activities, operational improvements and global 24x7 service delivery.

Required Skills:

• 3-6 years Hands-on experience in Unix/Linux system administration.
• Good knowledge of SUSE, RHEL or Ubuntu.
• Strong troubleshooting skills across OS services, processes, logs, filesystems and performance.
• Working knowledge of LVM, NFS, SSH, DNS, package management and cron.
• Experience with OS patching, vulnerability remediation and security baselines.
• Exposure to monitoring tools and ServiceNow or equivalent ITSM platforms.
• Strong understanding of ITIL Incident, Problem and Change Management.
• Basic Shell/Bash scripting skills; Python or Ansible exposure is advantageous.
• Experience in SLA-driven enterprise production operations and rotational shifts.

Preferred Skills:

• RHCSA/RHCE or equivalent Linux certification.
• Experience with CIS benchmarks and patch-management tools.
• Knowledge of VMware, AWS/Azure, backup and disaster recovery.
• Exposure to Ansible and automation.

Location / Support Model: Global 24x7x365 support across APAC, EMEA and NLAM, working in rotational shifts under a follow-the-sun model.