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Senior IBM i (Series/ A/S 400) Systems & Operations Administrator

MAG INSTRUMENT, INC.
Ontario, CA Full Time
POSTED ON 8/22/2026
AVAILABLE BEFORE 9/20/2026

Senior IBM i (iSeries / AS/400) Systems & Operations Administrator


Mag Instrument, Inc., maker of the world-famous MAGLITE® flashlight, is seeking an experienced IBM i professional to support our business-critical IBM i environment and provide general IT support across the organization.


This is primarily a systems administration and operations position, not an application-development role.

Key Responsibilities

  • Administer and maintain IBM Power Systems running IBM i / iSeries / AS/400.
  • Monitor system health, performance, storage, jobs, queues, subsystems, messages, and spool files.
  • Perform IBM i upgrades, PTF installation, IPLs, and planned system maintenance.
  • Manage user profiles, authorities, licensed programs, and system access.
  • Monitor and troubleshoot daily, nightly, monthly, and annual batch processing.
  • Support month-end and year-end processing, including job execution, troubleshooting, reporting, and coordination with Accounting.
  • Manage and verify IBM i backups, restores, and disaster-recovery procedures.
  • Troubleshoot failed jobs, system messages, connectivity issues, and production problems.
  • Maintain clear system, operational, backup, and processing documentation.
  • Provide hands-on support for Windows PCs, printers, Microsoft 365, IBM i client connectivity, and general end-user issues.
  • Assist with basic networking and connectivity troubleshooting, including TCP/IP, DNS, DHCP, VPNs, switches, and related systems.
  • Coordinate with IBM, software providers, and other technical vendors when escalation is required.

Occasional after-hours work may be required for system maintenance, upgrades, month-end processing, or other business-critical activities.


Required Qualifications

  • 5 years of hands-on IBM i / iSeries / AS/400 systems administration or operations experience.
  • Strong knowledge of IBM i work management, batch processing, jobs, queues, subsystems, messages, and spool management.
  • Experience with IBM i operating-system maintenance, PTFs, IPLs, backups, and recovery.
  • Experience supporting month-end, year-end, or other production processing cycles.
  • Working knowledge of IBM i security, user profiles, and authorities.
  • Strong troubleshooting and problem-solving skills.
  • Solid Windows PC and general end-user support experience.
  • Working knowledge of TCP/IP and common business networking concepts.
  • Ability to work independently and take ownership of issues through resolution.
  • Strong documentation and communication skills.

Preferred Qualifications

Experience with any of the following is beneficial:

  • IBM Hardware Management Console (HMC)
  • IBM Power Systems
  • IBM i Access Client Solutions (ACS)
  • CL commands or basic CL programming
  • DB2 for i and SQL
  • Job scheduling and automation tools
  • Manufacturing, ERP, accounting, inventory, or distribution systems
  • EDI and automated file-transfer processes
  • Microsoft 365, Active Directory / Entra ID, and Windows Server
  • Network switching, firewalls, VPNs, and enterprise storage


RPG programming experience is a plus, but is not required. Familiarity with RPG, SQL, or CL can be helpful when troubleshooting applications and production jobs; however, this position is focused primarily on IBM i systems administration and operations rather than software development.


About Mag Instrument

Mag Instrument, Inc. is the manufacturer of the world-famous MAGLITE® flashlight. For decades, MAGLITE® products have been recognized worldwide for quality, durability, craftsmanship, and American manufacturing.

Mag Instrument, Inc. is an Equal Opportunity Employer.

 

 

Company Description

Mag Instrument, Inc. was started in 1955 by the President and founder of the Company, Anthony (Tony) Maglica. Mag was first housed in a small private garage with only one employee, Mr. Maglica. Today, in contrast, the Company's operations are spread over eleven different buildings totaling almost 700,000 square feet.

Established in 1974 Mag Instrument, Inc. (Mag) is a family-owned manufacturer of the premier Mag-Lite® line of portable lighting products. It is by integrating the latest in manufacturing methods along with our dedicated, involved, and knowledgeable people that provides Mag with the edge that makes us the best in our field. Every Mag Instrument flashlight, no matter where in the world it ends up, originates from the manufacturing facility in Ontario, CA.

Mr. Maglica utilizes a hands-on leadership style with a core philosophy-consistent and superior quality of Mag products, outstanding customer service, integrity, honesty, innovative production and business processes, and fair treatment, respect, and equal opportunity for all Mag employees.

The success of Mr. Maglica's philosophy is evident by the recognition and awards Mag has received. Mag products were named "one of the 99 best products America makes best" by Money and Fortune magazines. Additionally, in 1996, Mr. Maglica was named Entrepreneur of the Year for the Southern California Inland Empire.

Mag's quality has not only been recognized in America, but Mag also has been the recipient of international design awards in Japan and Germany. This international recognition has made Mag products known world-wide and Mag's international business has grown steadily over the past several years.

Mag is proud of the fact its portable lighting products are designed in the U.S.A. and produced by American workers. Mag has withstood the upward pressures on its prices - having never increased prices to its customer since 1979. By continually implementing innovative production and business processes Mag has also been able to resist the temptation to "outsource" its flashlight manufacturing outside the U.S.A.

Salary : $115,000 - $135,000

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