Key Responsibilities

1. OS & Core Platform Management

• Commission and decommission compute and login nodes.
• Maintain golden images and ensure kernel version alignment and consistency.
• Apply OS hardening in accordance with authority-approved baselines.
• Execute staging-to-production patch cycles with proper validation and rollback plans.
• Detect and remediate configuration drift.
• Perform daily platform health checks and provide validation reports.

2. Virtualization & HCI Operations

• Manage VM lifecycle and maintain template hygiene.
• Execute scheduled monthly platform patching activities.
• Perform backup verification and representative restore testing.
• Participate in quarterly Disaster Recovery (DR) drills.
• Maintain inventory records, tagging standards, and configuration documentation.

3. Incident & Change Management

• Respond to incidents in accordance with SLA targets:
• P1: ≤ 30 minutes response time
• P2: ≤ 1 hour response time
• Implement approved changes with documented impact assessments and rollback plans.
• Perform post-incident Root Cause Analysis (RCA) and track corrective actions.
• Maintain ITSM evidence for all operational activities.

4. Security & Compliance

• Perform vulnerability remediation within defined timelines.
• Conduct key and certificate rotation activities.
• Execute account hygiene checks and periodic access reviews.
• Maintan audit-ready evidence packs and compliance documentation.

Environment / Platforms

• Red Hat Enterprise Linux(RHEL)
• SUSE Harvester
• HPE dHCI
• HPE Performance Cluster Manager (HPCM)
• CheckMK Monitoring System

Required Experience

• Minimum 5 years of experience in Linux system administration
• Experience in HPC environments or large-scale compute clusters preferred

Hands-on experience with:

• Red Hat Enterprise Linux (RHEL OS)
• VMware and/or SUSE Harvester
• Automation scripting (Shell / Python)
• Enterprise monitoring tools

Required Certifications

• ITIL Foundation (mandatory)
• Red Hat Certified SystemAdministrator (RHCSA) or equivalent or higher