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Mainframe Operator

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Onsite

Mainframe Operator

TPI Global Solutions

Mainframe Operator

1 day ago

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Important information


Contract type:

Freelance / Contract

Location:

Downey, CA, USA

Work mode:

Onsite

Published on:

22 October 2026

What they need


Title: Information Technology Mainframe Operator

Location: Downey, CA, 90242 (Hybrid)

Duration: 12+ month contract

Position Description

The Information Technology Mainframe Operator works under the direction of an Information Technology Systems Operations Supervisor who manages and oversees all aspects of work for the IBM mainframe systems. The Information Technology Mainframe Operator starts and stops system tasks, monitors the system consoles for unusual conditions, and works with the system programming and production control staff to ensure the health and normal operation of the systems. The Information Technology Mainframe Operator is also responsible for starting and stopping the major subsystems, such as transaction processing systems, database systems, and the operating system itself. These "restart operations" include performing an orderly shutdown and startup of the system and its workloads when it is required. The Information Technology Mainframe Operator communicates with system programmers, who assist the operator in determining the proper course of action, and with the production control analyst, who works with the operator to make sure that production workloads are completing properly.

Skills Required

The Information Technology Mainframe Operator will possess knowledge in decision making; organizational awareness; problem solving; oral communication and writing skills. The following technology skill sets are required to perform in this classification: IBM, Z/OS, CICS, NATURAL/SUPERNAT, IMS, DB2, ADABAS, ACF2, ENTIREX, SMP/E, ASSEMBLER/COBOL/REXX, CA SPOOL, JCL, CONTROL-M, IMS & DB2 BMC Tools, IMS DB/DC, VTAM, TCPIP, NETVIEW, HMC/HOD/IODF, Tivoli, MVM, JES2, ESF, Linux, Unix, p-Series, z-Series, & VTS.

Experience Required

This classification must have a minimum of five (5) years of experience as a mainframe operator, with at least two (2) years of that experience in operating and administering IBM System p-Series/z-Series platform.

In addition, one (1) year of experience of operating on automation of system monitoring and maintenance procedures and experience in ITM System Monitoring or similar role.

Education Required

This classification requires the possession of a bachelor’s degree in an IT-related and/or equivalent in mainframe operations field.

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