AS400 Systems Administrator

Questronix Corporation

Manila, Metro Manila, Philippines contract

Posted: January 22, 2026

Required Skills

Job Description

Job Description:

• Provide L2 support for IBM AS/400 / IBM i systems and applications
• Monitor system health, jobs, subsystems, message queues, and batch schedules
• Perform incident troubleshooting, root cause analysis, and resolution
• Manage user profiles, object authorities, and security access
• Review logs, investigate errors, and resolve job or program failures
• Monitor interfaces, file transfers (FTP/SFTP), MQ, and data flows
• Perform backup and restore activities (BRMS and native backups)
• Support change implementations and post-incident documentation
• Coordinate with L1, L3, and external vendors
• Participate in on-call or shift-based production support

Requirements:
Qualifications:

• At least 1 to 2 years of hands-on experience with IBM AS/400 / IBM i and OS/400

• Strong knowledge of job control, subsystems, job queues, and message queues
• Experience with spool file management, performance monitoring, and licensing
• L2 application support experience in production environments
• Basic knowledge of RPG/RPGLE and CL/CLLE (COBOL is a plus)
• DB2 for i fundamentals and basic SQL query skills
• Experience with schedulers (Control-M, Tivoli) and ticketing tools (ServiceNow, Jira)
• Understanding of batch vs online processing and Dev/UAT/Prod environments
• Knowledgeable with MIMIX
• Basic Linux and Windows system awareness

Preferred Skills:

• AS/400 modernization or migration experience
• DevOps or automation exposure on IBM i
• Banking, retail, or manufacturing domain experience
• SaaS or large-scale enterprise production support background

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