IBMi/AS400 Systems Engineer — Production & Automation

Infinite Computer Solutions; Campus (IL); On-site; USD 80,000 - 120,000; Full time

Job summary

Infinite Computer Solutions is seeking a Software Engineer with hands-on AS400/IBMi administration and production support to maintain platform availability and security. The role involves monitoring, backups, upgrades, incident resolution and controlled operational changes across production and non-production environments.

The ideal candidate brings 3–5 years of iSeries administration experience, strong troubleshooting, and collaboration with application, infrastructure and service-management

Qualifications

• Bachelor’s degree in computer science, Computer Engineering, or related field.
• Knowledge of Automation/Monitoring Tools.
• Knowledge in ACS Client Installation and Setup.
• Knowledge in iSeries New System Builds and Decommission.
• Strong knowledge of iSeries PTF/APAR Management.
• Strong Knowledge on iSeries AS400 Security Management.
• Expertise Knowledge in High Availability – MIMIX, iCluster.
• Strong problem-solving skills and ability to work in a fast‑paced environment.
• Excellent written and verbal communication skills.

Responsibilities

• Perform day-to-day IBM i system administration, monitoring and operational health checks for production and non-production environments.
• Handle user profiles, authorities, object ownership, group profiles, access controls and OS400 security administration in line with organizational policies.
• Monitor subsystems, jobs, messages, output queues, storage, system status and critical services; investigate and resolve operational issues.
• Perform job control, job monitoring and scheduling using native IBM i scheduling facilities or enterprise tools such as Robot, IBM Advanced Job Scheduler, Control-M or Halcyon.
• Execute backup and recovery activities using BRMS, native tape backups and virtual tape solutions; validate completion and raise exceptions promptly.
• Support IBM i OS upgrades, PTFs, cumulative updates, APAR analysis and application software maintenance using approved change procedures.
• Assist with Power System, HMC and VIOS operational tasks, including health checks, configuration reviews and issue coordination.
• Perform system-performance troubleshooting with tools such as IBM iDoctor or Performance Manager and recommend practical remediation.
• Support data replication and high-availability operations, including monitoring and initial troubleshooting of solutions such as MIMIX or iCluster.
• Participate in system builds, migrations, environment refreshes and decommissioning activities under senior technical guidance.
• Maintain operational documents, runbooks, incident records and change-related evidence for audit and knowledge sharing.
• Participate in on-call, weekend or planned maintenance activities as required by business and service commitments.

Skills

Problem-solving

Communication

Fast-paced environment

Automation/Monitoring tools

Education

Bachelor’s degree in computer science/engineering

Tools

Robot

IBM Advanced Job Scheduler

Control-M

Halcyon

Job description

Infinite Computer Solutions is seeking a Software Engineer with hands-on AS400/IBMi administration and production support to maintain platform availability and security. The role involves monitoring, backups, upgrades, incident resolution and controlled operational changes across production and non-production environments.

The ideal candidate brings 3–5 years of iSeries administration experience, strong troubleshooting, and collaboration with application, infrastructure and service-management