About the role As 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 · Strong 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 Cognizant is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.