AS400 Systems Administrator

AS400 Systems Administrator

> Questronix Corporation · Manila, Philippines · Contract · Posted 2026-09-18

**Salary:** unknown currency 432,000–480,000

**Workplace:** on_site

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 L2, 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**_

Apply

[Apply at Questronix Corporation](https://apply.workable.com/questronix-corporation-2/j/80E1BBB894/apply)

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