AS400 / IBM i Infrastructure Analyst

Kforce has a client in Chandler, AZ that is seeking an experienced AS400/IBM i Infrastructure Analyst to support and manage enterprise IBM i (AS/400) environments. Summary: This role focuses on system administration, platform stability, performance optimization, and security for mission-critical IBM i infrastructure. The ideal candidate will have strong hands-on experience managing IBM i systems and ensuring high availability across production environments. The candidate will administer, monitor, and support IBM i (AS/400) environments across production, development, and test systems. Perform system-level tasks including:

• OS upgrades and patching (PTFs)
• System configuration and environment setup
• Release management and maintenance

• Subsystems and job queues
• User profiles, authorization lists, and security settings
• Libraries, objects, and system resources
• Monitor and optimize system performance, including CPU, memory, and disk utilization
• Perform capacity planning and performance tuning
• Support high availability (HA) and disaster recovery (DR) solutions such as PowerHA, MIMIX, or iCluster
• Execute and validate backup and recovery procedures, including restore testing
• Troubleshoot and resolve system-level issues, incidents, and performance bottlenecks
• Support change management processes, including infrastructure updates and patching
• Work with application, database, and operations teams to ensure system reliability
• Maintain system documentation, operational procedures, and runbooks
• 5+ years of experience working with IBM i (AS/400) environments

• IBM i system administration and infrastructure support
• OS upgrades, PTF management, and system maintenance
• Job management, subsystems, and system monitoring

• User security (profiles, permissions, authorization lists)
• System performance and resource utilization
• Experience supporting production environments with high availability requirements
• Strong troubleshooting and problem-solving skills

• Experience with HA/DR solutions (PowerHA, MIMIX, iCluster, or similar)
• Familiarity with compliance and audit requirements (SOX, PCI, etc.)
• Experience with automation or scripting (CL, Shell, or equivalent)
• Exposure to monitoring and reporting tools
• Experience working in large-scale enterprise environments
• Familiarity with integration between IBM i and other enterprise systems

• You enjoy working at the system and infrastructure level
• You are comfortable owning platform stability, performance, and uptime
• You thrive in environments where reliability and precision are critical
• You enjoy troubleshooting and improving complex systems