Senior AS/400 System Administrator Needed for Complex IT Infrastructure

7 days ago

Singapore beBeeSystemAdministrator Full time $90,000 - $120,000

Job Title: Senior AS/400 System Administrator Needed

We are seeking a highly skilled and experienced AS/400 System Administrator to join our team. The ideal candidate will have strong system administration skills in AS/400 System i, preferably with experience in iASP environments.

Key Responsibilities:

  • Administer and support AS/400 System i, including planning, implementation, and upgrades;
  • Manage OS400 security, BRMS backup, operations monitoring, alerting, and data replication;
  • Perform installation, configuration, and maintenance of 3rd party tools (e.g., MQ, Thenon, Windows Menu, Robot Schedule, Alert Console);
  • Plan, review, and execute OS, PTF, and 3rd party software upgrades;
  • Support PowerHA, Admin Domain, VIOS management, and copy services in an iASP environment;
  • Troubleshoot data, application, and system performance issues using tools such as IBM iDoctor, DBMON Traces, and Job Watcher;
  • Provide administration and operational support for IBM DS8K storage and SAN switches (including global and metro mirror);
  • Implement and manage ACS client installation and setup, SKLM, and Spectrum Control;
  • Ensure compliance with access and security guidelines for AS/400 networked systems;
  • Collaborate with BAU project support and infrastructure teams, providing operational stability and project delivery;

Requirements:

  • A good degree with experience in administration and troubleshooting of AS/400 System i with iASP model;
  • Strong knowledge of IBM DS8K storage and SAN switches, including mirroring configurations;
  • Good understanding of TCP/IP protocols and network troubleshooting techniques;
  • Experience with PowerHA, Admin Domain, copy services, and VIOS management;
  • Knowledge of SQL, CL, RPG, and proficiency with MS Office tools (including MS Access);
  • Familiarity with ACS client, SKLM, Spectrum Control, and 3rd party system tools;
  • Knowledge of ITIL processes and best practices;
  • Strong troubleshooting and analytical skills for system, network, and application-level issues;
  • Ability to multitask and manage multiple initiatives simultaneously;
  • Willingness to support off-hours or weekends when required for deployment and upgrade activities.

The ideal candidate will be proactive, detail-oriented, and able to work independently. Excellent communication and problem-solving skills are essential for this role.

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