Mainframe Z/Os Administrator

Our client, an award-winning Car Hire Rental company is looking for a Mainframe Z/Os Administrator This role is responsible for implementing, maintaining and optimizing z/OS Operating environment and involves managing system configuration, upgrades, applying maintenance (PTFs/RSUs), monitoring system performance and ensuring high availability. The engineer will oversee hardware components such as CPCs, LPARs, DASD, tape systems, HMC/SE, and IOCP/IODF configurations.

Your responsibilities:

* Plan, prepare, and execute z/OS operating system upgrades

* Apply IBM PTFs and APARs to maintain system integrity and resolve reported issues

* Monitor z/OS system health, performance, and resource utilization using tools like RMF, SMF, TMON and SAS

* Install, configure, upgrade, and maintain a wide range of ISV products (e.g., Broadcom/CA, BMC, IBM, Rocket Software, etc.)

* Have good understanding and experience on Hardware Configuration Definitio...