Senior IBM i (AS/400) Systems Administrator

Hallmark Global Solutions Ltd; Plano (TX); On-site; USD 90,000 - 120,000; Full time

Job summary

Hallmark Global Solutions Ltd in Plano, Texas seeks an experienced AS400 Administrator to manage IBM AS/400 (IBM i) systems. You will handle system administration, monitoring, upgrades, backup and security operations, and collaborate with cross-functional teams to maintain high availability.

The ideal candidate has hands-on experience with BRMS backup, PTF management, and CL scripting, plus strong trouble-shooting and documentation skills, to optimize performance and reliability.

Qualifications

• Experience with IBM AS/400 administration and IBM i operating systems.
• Strong knowledge of BRMS backup and recovery tools and PTF management.
• Proficient with CL language, job scheduling, and system upgrades.
• Ability to monitor performance, security, and disaster recovery readiness.

Responsibilities

• Install, configure, administer, and maintain IBM AS400 / IBM i systems.
• Monitor system performance, availability, and infrastructure health.
• Perform upgrades, patching, and maintenance tasks.
• Manage user profiles, security, permissions, and access controls.
• Handle backup, recovery, and disaster recovery operations.
• Troubleshoot system jobs, subsystems, and batch processing.
• Optimize storage and performance; support high availability.
• Coordinate with app, DB, network, and infra teams.
• Maintain documentation and system configurations.

Skills

AS400 administration

IBM i

system administration

troubleshooting

security administration

backup and recovery

performance monitoring

patch management

job scheduling

CL scripting

DB2 for IBM i

Education

Bachelor's degree in Computer Science or IT

Tools

BRMS

PTF management

Job description

Hallmark Global Solutions Ltd in Plano, Texas seeks an experienced AS400 Administrator to manage IBM AS/400 (IBM i) systems. You will handle system administration, monitoring, upgrades, backup and security operations, and collaborate with cross-functional teams to maintain high availability.

The ideal candidate has hands-on experience with BRMS backup, PTF management, and CL scripting, plus strong trouble-shooting and documentation skills, to optimize performance and reliability.