Job Title: AS400 /IBM i Infrastructure Admin

Duration: 12+ months contract (possibility of extension/conversion)

Work Location: Toronto, ON (Hybrid – 3days onsite, 2days WFH)

The Role:

As the AS400 (IBM i) Infrastructure Admin you will be responsible for the administration, stability, performance, and security of the IBM i (AS/400) infrastructure. This role ensures high availability of critical business applications by managing system operations, capacity, upgrades, backup/recovery, and incident resolution, while working closely with application, database, and operations teams.

Key Responsibilities:

IBM i / AS400 System Administration

- Administer, monitor, and support IBM i (AS/400) systems in production, development, and test environments.
- Perform system configuration, upgrades, PTF management, and OS releases.
- Manage system objects, libraries, user profiles, authorization lists, and security settings.
- Monitor system performance, job queues, subsystems, disk usage, and system logs.
- Manage high availability (HA) and disaster recovery (DR) solutions (e.g., PowerHA, MIMIX, iCluster).




- Perform capacity planning and performance tuning.
- Execute backup and recovery procedures and conduct regular restore testing.

Incident, Problem & Change Management

- Troubleshoot and resolve system-level incidents and performance issues.
- Support change management processes, including patching and infrastructure changes.
- Work collaboratively with service management tools (e.g., ServiceNow).

Security & Compliance

- Enforce IBM i security best practices, user access controls, and audit requirements.
- Support internal and external compliance audits (SOX, PCI, etc.).
- Monitor system access, review logs, and remediate vulnerabilities.

Automation & Continuous Improvement

- Develop and maintain CL, RPG, or scripting solutions to automate operational tasks.
- Identify and implement infrastructure improvements and optimization opportunities.
- Create and maintain technical documentation, runbooks, and operational procedures.

📌 /IBM i Infrastructure Administrator (Toronto)
🏢 Navitas Partners
📍 Toronto