AS400 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

We are looking for an experienced AS400 Administrator to manage, maintain, support, and optimize IBM AS400 (IBM i) systems. The ideal candidate should have strong experience in system administration, infrastructure management, performance monitoring, backup and recovery, security administration, and troubleshooting in an AS400 environment.

Key Responsibilities

• Install, configure, administer, and maintain IBM AS400 / IBM i systems.
• Monitor system performance, availability, and overall infrastructure health.
• Perform system upgrades, PTF installations, patch management, and system maintenance.
• Manage user profiles, system security, access controls, and permissions.
• Handle backup, recovery, and disaster recovery operations.
• Monitor and troubleshoot system jobs, subsystems, job queues, and batch processing.
• Manage system storage, disk utilization, and performance optimization.
• Support high availability and disaster recovery solutions.
• Identify and resolve system issues, outages, and performance bottlenecks.
• Coordinate with application, database, network, and infrastructure teams.
• Maintain technical documentation, operational procedures, and system configurations.

Required Technical Skills

• Strong hands-on experience with IBM AS400 / IBM i administration.
• Knowledge of IBM i operating systems and system architecture.
• Experience with IBM i system commands and CL (Control Language).
• Knowledge of job scheduling, job queues, subsystems, and batch jobs.
• Experience with backup and recovery tools such as BRMS.
• Knowledge of PTF management, system upgrades, and patching.
• Experience with user administration, security, and access management.
• Strong troubleshooting and system performance monitoring skills.
• Understanding of high availability and disaster recovery concepts.
• Familiarity with DB2 for IBM i is preferred.

Preferred Qualifications

• Bachelor's degree in Computer Science, Information Technology, or a related field.
• Relevant IBM i / AS400 certifications are an advantage.
• Experience supporting enterprise-level AS400 environments.
• Strong communication, analytical, and problem-solving skills.