About the roleAs a Lead z/OS Administrator, you will make an impact by leading the administration, maintenance, and performance of enterprise mainframe environments.
You will be a valued member of the Infrastructure & Cloud Operations team and work collaboratively with your manager, a team of mainframe engineers, and cross-functional technology stakeholders.
In this role, you will:• Lead and mentor a team of mainframe administrators while owning end-to-end z/OS system administration across IBM z/OS environments (v2.4 and v2.5)• Plan and execute z/OS version upgrades, LPAR builds, and the installation of patches, fixes, and ISV products using SMP/E• Maintain and optimize system parameters and parmlib configurations, including WLM, RMF, SMF, and zOSMF setup• Monitor and report on z/OS system performance, proactively identifying and resolving incidents related to z/OS issues• Manage relationships and products across key vendors including CA, BMC, and Compuware,



ensuring effective installation and ongoing maintenance What you need to have to be considered• Strong hands-on z/OS system administration experience, with demonstrated ability to lead a technical team• Deep expertise in IBM z/OS (v2.4 and v2.5), System z architecture, and Parallel Sysplex concepts• Solid proficiency with SMP/E for software installation and maintenance, including patches and ISV products• Proven experience with z/OS performance monitoring and reporting tools, including RMF and SMF• Solid working knowledge of WLM, zOSMF configuration, parmlib maintenance, and incident management on z/OS platforms These will help you stand out• Experience managing a broad portfolio of vendor products across CA, BMC, and Compuware in a large enterprise environment• Familiarity with mainframe LPAR build processes and capacity planning• Strong communication skills with the ability to translate technical mainframe concepts for non-technical stakeholders

📌 Z/Os Systems Programmer (Melbourne)
🏢 Cognizant
📍 Melbourne