Job Title - IBM iSeries (AS/400) Infrastructure Administrator

Start Date – DOE

Job Summary

We are seeking an experienced IBM iSeries (AS/400) Infrastructure Administrator (L3) to lead the administration, optimization, and support of our IBM Power Systems / iSeries (AS/400) environment. This is a senior technical role responsible for the end-to-end health, security, availability, and performance of the organization's AS/400 infrastructure, including system administration, high availability/disaster recovery, capacity planning, and mentoring of junior team members. The idóneo candidate combines deep technical expertise with strong problem-solving skills and the ability to act as a final escalation point for complex system issues.

Key Responsibilities
- Provide L3-level administration and support for IBM iSeries/AS400 (IBM i, OS/400) systems, including installation, configuration, upgrades, and patching (PTFs, Technology Refreshes, OS upgrades).
- Manage system performance tuning, capacity planning,



and workload management to ensure optimal system throughput and resource utilization.
- Administer and maintain high availability (HA) and disaster recovery (DR) solutions (e.g., MIMIX, iTera, PowerHA, or native replication) including regular DR testing and failover validation.
- Oversee backup and recovery strategies (BRMS or equivalent), ensuring data integrity and adherence to RPO/RTO requirements.
- Manage security administration including user profiles, object-level authorities, exit points, and compliance with organizational and regulatory security policies.
- Monitor system health using tools such as IBM Navigator for i, Robot/Console, or equivalent monitoring platforms; proactively identify and resolve performance bottlenecks.
- Administer subsystems, job scheduling, and batch processing environments.
- Support and maintain LPARs, storage (SAN/DASD), and virtualization (PowerVM) configurations.
- Manage software installations, licensing, and third-party AS/400 to

📌 IBM iSeries (Bogotá, D.C.)
🏢 Georgia IT
📍 Bogotá, D.C.