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As400 Systems Administrator Jobs (NOW HIRING)

Monitor IBM i / AS400 / iSeries systems (QSYSOPR) for messages, errors, and hardware alerts * Apply program fixes (PTFs) and perform routine system maintenance * Manage job scheduler and monitor ...

Monitor IBM i / AS400 / iSeries systems (QSYSOPR) for messages, errors, and hardware alerts * Apply program fixes (PTFs) and perform routine system maintenance * Manage job scheduler and monitor ...

Monitor IBM i / AS400 / iSeries systems (QSYSOPR) for messages, errors, and hardware alerts * Apply program fixes (PTFs) and perform routine system maintenance * Manage job scheduler and monitor ...

... AS400 system Issue manual checks when required Maintain benefit accruals Workers' Compensation ... and administer union associate seniority records in accordance with the Collective Bargaining ...

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As400 Systems Administrator information

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$41K

$88.9K

$137.5K

How much do as400 systems administrator jobs pay per year?

As of Aug 6, 2026, the average yearly pay for as400 systems administrator in the United States is $88,927.00, according to ZipRecruiter salary data. Most workers in this role earn between $70,000.00 and $104,000.00 per year, depending on experience, location, and employer.

What is an AS400 systems administrator?

AS400 Systems Administrators are IT professionals responsible for managing and maintaining IBM AS400 (also known as IBM iSeries or IBM Power Systems) computer systems. Their duties include installing and configuring hardware and software, performing system backups and restores, monitoring system performance, troubleshooting technical issues, and ensuring security and compliance. They play a critical role in ensuring the smooth operation and reliability of business applications that run on the AS400 platform.

What are some common challenges faced by an AS400 systems administrator when managing legacy systems?

AS400 Systems Administrators often encounter challenges related to maintaining and upgrading legacy hardware and software, as many organizations still rely on older IBM i systems for critical business operations. Compatibility issues with newer technologies and limited vendor support can also pose obstacles. Administrators must ensure system reliability, security, and data integrity while planning for eventual modernization or integration with cloud-based solutions. Collaborating closely with application developers and business stakeholders is essential to address these challenges effectively.

What are the key skills and qualifications needed to thrive as an AS400 systems administrator?

To thrive as an AS400 Systems Administrator, you need expertise in IBM iSeries (AS400) operations, system maintenance, and troubleshooting, often supported by a degree in computer science or related field. Familiarity with tools like IBM Navigator for i, BRMS, and experience with CL programming, backup solutions, and system security protocols is required. Strong problem-solving skills, attention to detail, and effective communication are essential soft skills in this role. These skills and qualities ensure the reliability, security, and optimal performance of critical business systems running on the AS400 platform.

What is the difference between As400 Systems Administrator vs AS/400 Support Specialist?

AspectAs400 Systems AdministratorAS/400 Support Specialist
CertificationsIBM Certified System Administrator, relevant IT certificationsIBM certifications, technical support certifications
Work EnvironmentData centers, enterprise IT teams, server managementHelp desks, technical support teams, client sites
Employer & IndustryLarge corporations, financial institutions, government agenciesIT service providers, support firms, enterprise clients
Job FocusSystem maintenance, configuration, performance tuningIssue resolution, user support, troubleshooting

The As400 Systems Administrator primarily manages and maintains IBM iSeries (AS/400) systems, focusing on system performance and configuration. In contrast, the AS/400 Support Specialist provides technical support and troubleshooting assistance to users. While both roles require similar certifications and work within enterprise IT environments, the administrator handles system operations, whereas the support specialist focuses on user support and issue resolution.

More about As400 Systems Administrator jobs
What states have the most As400 Systems Administrator jobs? States with the most job openings for As400 Systems Administrator jobs include:
What job categories do people searching As400 Systems Administrator jobs look for? The top searched job categories for As400 Systems Administrator jobs are:
Infographic showing various As400 Systems Administrator job openings in the United States as of August 2026, with employment types broken down into 85% Full Time, 9% Part Time, 5% Contract, and 1% Nights. Highlights an 90% Physical, 2% Hybrid, and 8% Remote job distribution, with an average salary of $88,927 per year, or $42.8 per hour.

Urgent Needs - AS400 /IBM i Infrastructure Analyst in Phoenix, AZ (priority) / NJ / NC / TX / FL / V

Komplete Teleservices

Plano, TX • On-site

Other

Re-posted 4 days ago


Job description

Note: 

Phoenix, Az being primary

candidates can work from
Plano, TX, Charlotte, NC, Richmond, VA, Jacksonville, FL, Pennington, NJ, Chicago, IL


AS400 /IBM i Infrastructure Analyst

As the AS400 (IBM i) Infrastructure Analyst 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.

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.