AS400 Systems Administrator

Questronix Corporation; Manila; On-site; PHP 446,400 - 669,600; Full time

Job summary

A technology support firm is seeking an experienced L2 support professional for IBM AS/400 / IBM i systems. The role involves monitoring system health, troubleshooting incidents, and managing user profiles. Ideal candidates should have at least 1 to 2 years of hands-on experience with IBM systems, along with strong knowledge of job control and application support in production environments. This role offers opportunities for growth and the chance to work with advanced technologies.

Qualifications

• At least 1 to 2 years of hands‑on experience with IBM AS/400 / IBM i and OS/400.
• L2 application support experience in production environments.
• Basic Linux and Windows system awareness.
• Knowledgeable with MIMIX.

Responsibilities

• Provide L2 support for IBM AS/400 / IBM i systems.
• Monitor system health and job schedules.
• Perform incident troubleshooting and root cause analysis.
• Manage user profiles and security access.
• Review logs and resolve job or program failures.
• Coordinate with L1, L3, and external vendors.

Skills

Hands-on experience with IBM AS/400 / IBM i

Job control knowledge

Experience with spool file management

Application support experience

Basic knowledge of RPG/RPGLE and CL/CLLE

DB2 for i fundamentals

Experience with schedulers

Understanding of batch vs online processing

Knowledgeable with MIMIX

Basic Linux awareness

Basic Windows awareness

Tools

Control‑M

Tivoli

ServiceNow

Jira

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

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