Subject Matter Expert (Support&Ops)

Job Summary We are seeking a highly experienced

AS/400 (IBM i / iSeries) System Administrator – L3

with

8+ years of hands‑on experience

in core IBM i system administration, combined with strong leadership and customer‑facing skills.

The role requires deep expertise across the full lifecycle of IBM i systems, including system builds, migrations, OS upgrades, PTF management, performance tuning, and proactive maintenance, to ensure high availability, optimal performance, and security of production, test, and development environments.

Key Responsibilities

Lead a highly technical team and provide guidance and mentorship.

Perform software installation, OS upgrade, server build/migration and ongoing maintenance.

Plan, schedule, and execute proactive maintenance, OS and third‑party software upgrades, and PTF installation.

Conduct capacity planning, performance monitoring, and tuning.

Create and e...