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Niche mainframe skill lowers applicant pool, but metro location and mid-level experience make competition moderate.
Mainframe z/OS performance and capacity skills are highly specialized and not widely transferable across industries.
Explicit 5+ years requirement plus many mandatory mainframe tools, on-call and vendor-specific skills create high strictness.
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Manage and analyze mainframe performance and capacity on IBM z/OS platforms, including SMF/RMF data, WLM configuration, and performance reporting.
Provide 24/7 on-call support and perform diagnostics and root cause analysis across mainframe components: ZOS, JES, CICS, DB2, IMS, DASD, and tape storage.
Recommend modernization options, capacity planning for physical processors and storage, and deliver technical guidance to meet business needs.
5+ years experience in mainframe performance and capacity planning on IBM z/OS platforms.
Strong knowledge of SMF/RMF data analysis, WLM, Parallel Sysplex, multiple LPARs, and system performance components including ZOS, JES, CICS, DB2, IMS.
Experience with performance analysis, diagnostics, root cause analysis, and capacity planning for processors, DASD, and tape storage.
Work Experience Required: 5+ years mainframe performance and capacity management on IBM z/OS systems.
Experienced in large-scale IBM mainframe environments with expertise in workload management, capacity forecasting, and performance tuning across multiple subsystems.
Comfortable providing 24/7 client support and technical leadership in infrastructure solutions and modernization initiatives.
Familiar with monitoring and analytical tools such as RMF, Omegamon, BMC products, MXG, CA-MICS, and capacity planning tools like CP3000, zPCR, zTPM.