AIX L Support Engineer

About the Role

HCLTech is seeking an experienced AIX L3 Support Engineer to join their team in Riyadh, Saudi Arabia. This full-time role involves supporting and managing a large-scale IBM Power/AIX environment. The position requires deep expertise in AIX, VIOS, HMC, Power Systems, SAN storage, and high-availability clustering, along with the capability to handle Linux L2-level tasks.

Role Context and Impact

This role is critical for supporting mission-critical systems that demand stringent uptime, security, audit, and compliance. The engineer will be responsible for independently executing complex upgrades, migrations, disaster recovery exercises, and infrastructure transformation initiatives. The position ensures the resilience, security, and stability of core business systems running on IBM Power/AIX platforms.

Key Responsibilities

• Provide full L3 support for AIX systems, including installation, patching, OS upgrades, tuning, and troubleshooting.
• Administer logical partitions (LPARs), DLPAR operations, system performance tuning, filesystem/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.
• Plan and execute firmware upgrades on IBM Power Systems (Power9/Power10 or equivalent).
• Lead SAN storage migrations across multi-vendor platforms (3PAR/Unity/IBM or equivalent), including LUN provisioning/decommissioning, zoning coordination, multipath validation, and host mappings.
• Lead yearly DR exercises, performing end-to-end failover testing, environment validation, and recovery procedures.
• Address OS-level vulnerabilities (CVEs), apply hardening, and maintain compliance posture.
• Participate in and lead infrastructure initiatives such as OS upgrades, data center migrations, storage and virtualization modernization, and infrastructure automation.
• Perform Linux L2 tasks, including user management, patching, service monitoring, log analysis, cron, and basic network troubleshooting.
• Conduct proactive monitoring, system health checks, and risk identification.
• Maintain accurate documentation, including SOPs, build documents, DR runbooks, and configuration records.

Qualifications and Experience

• 7-12 years of experience in AIX L3 support and IBM Power Systems administration.
• Demonstrated deep expertise in AIX, VIOS, HMC, Power Systems, SAN storage, and high-availability clustering.
• Proficiency in Linux L2-level administration tasks.
• Experience with multi-vendor SAN storage platforms (*, 3PAR/Unity/IBM).
• Proven ability to lead and execute complex upgrades, migrations, and DR exercises.
• Strong understanding of security, audit, and compliance requirements for mission-critical systems.

Operational Excellence

The successful candidate will ensure all changes are executed with minimal downtime and high precision. This involves preparing change plans, impact assessments, test plans, and rollback strategies. The role also requires coordination with cross-functional teams and vendors to resolve incidents and deliver planned activities efficiently.