Job Title - IBM iSeries (AS/400) Infrastructure Administrator
Work Location - Mirandaor Bogota (Colombia)
12 months plus contract
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 adecuado 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 i

📌 IBM iSeries (Bogotá)
🏢 Georgia IT
📍 Bogotá