AIX L3 Support Engineer

Role: AIX L3 Support Engineer (with Linux L2 Skills)

Location: Riyadh KSA

Experience: 7–12 Years

Shift: 24/7 Support

Environment: Highly Critical Enterprise Banking Infrastructure

We are seeking an experienced AIX L3 Support Engineer to support and manage a large-scale IBM Power/AIX environment. The role requires deep expertise in AIX, VIOS, HMC, Power Systems, SAN storage
, and high-availability clustering
, along with the ability to handle Linux L2-level tasks
.

This position supports mission-critical systems with strict uptime, security, audit, and compliance requirements. The engineer must be capable of independently executing complex upgrades, migrations, DR exercises, and infrastructure transformation initiatives.

• Provide full L3 support for AIX systems including installation, patching, OS upgrades, tuning, and troubleshooting.
• Administer logical partitions (LPARs), DLPAR operations, system performance tuning, file system/LVM management, and capacity optimization.
• Manage and maintain high-availability environments including PowerHA clusters and replication setups.
• Handle VIOS patching, upgrades, and virtual I/O (SEA, NPIV, vSCSI, vFC) management.
• Perform HMC software updates, release upgrades, service pack installations, and configuration standardization.
• Support virtualization activities for cross-platform teams.

• Plan and execute firmware upgrades on IBM Power Systems (Power9/Power
  10 or equivalent).
• Coordinate hardware activities with data center and vendor teams.

• Lead SAN storage migrations across multi-vendor platforms (3
  
  PAR/Unity/IBM or equivalent).
• Perform LUN provisioning/decommissioning, zoning coordination, multipath validation, and host mappings.
• Troubleshoot storage connectivity and performance issues.

• Lead yearly DR exercises, performing end-to-end failover testing, environment validation, and recovery procedures.
• Support DR planning activities including system replications, fallback procedures, and post-DR readiness.

• Address OS-level vulnerabilities (CVEs), apply hardening, and maintain compliance posture.
• Support internal and external audits by preparing documentation, system evidence, and remediation activities.

• Participate in and lead infrastructure initiatives including:
• Data center migrations and platform consolidation
• Storage and virtualization modernization
• Infrastructure automation or standardization
• Prepare change plans, impact assessments, test plans, rollback strategies, and execute changes with zero-defect methodology.
• Perform Linux L2 tasks including user management, patching, service monitoring, log analysis, cron, and basic network troubleshooting.
• Support integrated environments involving both AIX and Linux platforms.

• Conduct proactive monitoring, system health checks, and risk identification.
• Maintain accurate documentation including SOPs, build documents, DR runbooks, and configuration records.
• Coordinate with cross-functional teams and vendors to resolve incidents and deliver planned activities.
• Ensure all changes are executed with minimal downtime and high precision.

• 7–12+ years of hands-on AIX administration in an L3 role.
• Strong expertise in IBM Power Systems (Power9/Power
  10), VIOS, HMC, NIM, AIX 6.1/7.1/7.2.
• Proven experience with firmware upgrades, SAN migrations, DR exercises, and enterprise-scale system upgrades.
• Solid understanding of PowerHA clustering, virtualization technologies, and multipath/storage concepts.
• Linux administration capability at L2 level (RHEL/SUSE/Oracle Linux).

• Strong understanding of ITIL…