Senior Mainframe z/OS Systems Engineer

ATS Client in Pretoria is seeking an experienced Mainframe Systems Engineer / zOS Specialist to manage day-to-day operation of the Mainframe environment, including z hardware and z/OS software. You will ensure stability, performance and resilience while coordinating with multiple engineering teams.

Responsibilities include installations, upgrades, storage management, DR planning and business continuity activities, plus ongoing optimization of z/OS subsystems and third‑party products.