Job Title: AS400 / IBM i Infrastructure Analyst

Duration: 6–12 Months Contract [NO BENEFITS]
Work Location: Toronto, ON, Canada
Work Arrangement: Hybrid – 3 Days Onsite, 2 Days Work From Home

Job Overview

We are seeking an experienced AS400 / IBM i Infrastructure Analyst to manage and maintain the administration, stability, performance, availability, and security of IBM i (AS/400) infrastructure. The ideal candidate will ensure the reliable operation of critical business applications by managing system operations, capacity planning, upgrades, backup and recovery, and incident resolution while collaborating with application, database, and operations teams.

Key Responsibilities

1. IBM i / AS400 System Administration

• Administer, monitor, and support IBM i (AS/400) systems across production, development, and testing environments.
• Perform system configuration, operating system upgrades, Program Temporary Fix (PTF) management, and OS release updates.
• Manage system objects, libraries, user profiles, authorization lists, and security configurations.
• Monitor system performance, job queues, subsystems, disk utilization, and system logs.
• Administer high availability (HA) and disaster recovery (DR) solutions, including PowerHA, MIMIX, and iCluster.
• Perform capacity planning, performance monitoring, and system tuning.
• Execute backup and recovery procedures and conduct regular restoration testing.

2. Incident, Problem, and Change Management

• Troubleshoot and resolve system-level incidents, infrastructure issues, and performance bottlenecks.
• Participate in incident, problem, and change management processes.
• Support system patching, upgrades, and infrastructure changes while minimizing operational disruption.
• Use IT service management tools, such as ServiceNow, to track incidents, changes, and service requests.
• Collaborate with application, database, and operations teams to resolve technical issues and maintain service availability.

3. Security and Compliance

• Implement and maintain IBM i security best practices, user access controls, and authorization policies.
• Support internal and external compliance audits, including SOX and PCI requirements.
• Monitor system access, review security logs, and investigate potential security issues.
• Identify and remediate vulnerabilities while maintaining compliance with organizational security standards.

4. Automation and Continuous Improvement

• Develop and maintain CL, RPG, and scripting solutions to automate routine infrastructure and operational tasks.
• Identify opportunities to improve system reliability, performance, and operational efficiency.
• Implement infrastructure optimization initiatives and operational improvements.
• Create and maintain technical documentation, operational runbooks, and standard operating procedures.