AS400 (IBM i) System Administrator

AS400 (IBM i) System Administrator

Role Descriptions:

Role Summary

The AS400 (IBM i iSeries) System Administrator is responsible for the administration, monitoring, maintenance, security, patching, upgrades, and operational support of IBM i environments. The role ensures platform stability, performance, availability, and compliance while managing batch scheduling operations using ROBOT Scheduler and supporting business-critical production workloads.

1. IBM i AS400 System Administration

• Administer and maintain IBM i (AS400/iSeries) environments across Production, DR, QA, and Development systems.

• Perform daily health checks, system monitoring, and performance tuning.

• Manage user profiles, authorities, object permissions, and security controls.

• Monitor system resources, storage utilization, and capacity planning.

• Perform IPL activities and system startup/shutdown operations.

• Troubleshoot operating system, subsystem, and job-related issues.

• Ensure adherence to ITIL-based Incident, Problem, and Change Management processes.

2. OS Management, PTFs, and Upgrades

• Plan and execute IBM i OS upgrades and technology refresh activities.

• Manage PTF installation, cumulative packages, HIPER PTFs, and security patches.

• Conduct pre-upgrade assessments and compatibility checks with applications and third-party tools.

• Coordinate maintenance windows and upgrade activities with business stakeholders.

• Perform validation, testing, rollback planning, and post-upgrade verification.

• Document upgrade procedures, risks, and remediation activities.

• Support firmware updates and Power Systems infrastructure maintenance.

3. Backup, Recovery Disaster Recovery

• Administer BRMS (Backup Recovery and Media Services).

• Execute scheduled and on-demand backups and restore operations.

• Manage virtual tape and media lifecycle.

• Perform recovery testing and DR drill activities.

• Support High Availability solutions such as MIMIX, PowerHA, iCluster, or equivalent.

• Participate in failover and failback exercises and DR readiness reviews.

4. ROBOT Scheduler Administration

• Configure, administer, and maintain ROBOT Scheduler environments.

• Create, modify, and manage batch jobs, calendars, dependencies, and workflows.

• Monitor critical business batch schedules and production job streams.

• Manage cross-system and cross-LPAR job dependencies.

• Troubleshoot failed, delayed, long-running, and abnormally terminated jobs.

• Perform job reruns, schedule modifications, and recovery activities.

• Support month-end, quarter-end, and year-end business processing schedules.

• Generate scheduler reports, audit information, and operational metrics.

• Coordinate with application teams for new job implementation and schedule changes.

5. Production Control Batch Operations

• Monitor production batch workloads and job queues.

• Manage subsystems, message queues, output queues, and spool files.

• Analyze performance bottlenecks and optimize batch execution windows.

• Support ad-hoc, scheduled, and on-demand production

Essential Skills:

The AS400 (IBM i iSeries) System Administrator is responsible for the administration, monitoring, maintenance, security, patching, upgrades, and operational support of IBM i environments. The role ensures platform stability, performance, availability, and compliance while managing batch scheduling operations using ROBOT Scheduler and supporting business-critical production workloads.

1. IBM i AS400 System Administration

• Administer and maintain IBM i (AS400/iSeries) environments across Production, DR, QA, and Development systems.

• Perform daily health checks, system monitoring, and performance tuning.

• Manage user profiles, authorities, object permissions, and security controls.

• Monitor system resources, storage utilization, and capacity planning.

• Perform IPL activities and system startup/shutdown operations.

• Troubleshoot operating system, subsystem, and job-related issues.

• Ensure adherence to ITIL-based Incident, Problem, and Change Management processes.

2. OS Management, PTFs, and Upgrades

• Plan and execute IBM i OS upgrades and technology refresh activities.