AS400 (IBM i) System Administrator

Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!; Florenceville-Bristol; On-site; CAD 80,000 - 110,000; Full time

Job summary

Astra-North Infoteck Inc. seeks an AS400 System Administrator to oversee IBM i environments across Production, DR, QA, and Development. You will ensure stability, security, and performance while managing batch scheduling, health checks, and routine upgrades.

Responsibilities include monitoring, capacity planning, IPL activities, and incident/problem/change adherence, collaborating with stakeholders to keep critical workloads running smoothly.

Qualifications

• Experience administering IBM i (AS/400/iSeries) environments across multiple stages (Production, DR, QA, Development).
• Proficient in monitoring, health checks, and performance tuning.
• Knowledge of security, user profiles, authorities, and object permissions.
• Familiarity with ITIL-based Incident, Problem, and Change Management.
• Experience with batch scheduling and job management in complex environments.

Responsibilities

• Administer and maintain IBM i environments for Production, DR, QA, and Development systems.
• Perform daily health checks, monitoring, and performance tuning.
• Manage user profiles, authorities, and security controls.
• Monitor resources, storage, and capacity planning.
• Perform IPL, startup/shutdown, and troubleshoot OS/subsystem issues.
• Coordinate with stakeholders for patches, upgrades, and DR drills.
• Configure and maintain ROBOT Scheduler jobs, calendars, and workflows.
• Support month-/quarter-/year-end processing and generate operational metrics.

Skills

IBM i administration

Batch scheduling

Security controls

ITIL processes

System monitoring

Tools

ROBOT Scheduler

BRMS

Power Systems

MIMIX/PowerHA

iCluster

Job description

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.

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.

General Responsibilities

• 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.

5. Production Control Batch Operations

• 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.
• 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