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Tier-1 brand and metro location increase competition, but niche senior mainframe security skills limit the applicant pool.
Highly specialized z/OS USS and RACF skills make cross-industry transfers difficult.
Explicit 10+ years, mandatory RACF/USS expertise and mainframe security make screening highly selective.
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Administer and secure z/OS UNIX System Services (USS) environments, enforcing least privilege and controlling privileged access.
Manage and audit USS identities, POSIX permissions, UNIX-related ESM controls (RACF/TSS), and secure USS configuration and filesystems.
Collaborate with security architects, system programmers, middleware teams, and compliance stakeholders to maintain secure and compliant USS platforms.
Bachelor’s degree required.
10+ years of mainframe and z/OS UNIX System Services experience; typically 6+ years relevant hands-on USS security experience.
Proven experience administering RACF or equivalent enterprise security manager (ESM) for USS environments.
Strong knowledge of USS security controls including UNIXPRIV, FACILITY resources, POSIX permissions, UIDs/GIDs, OMVS segments, and audit/log monitoring.
Experienced in enforcing least-privilege and separation-of-duty principles specifically in mainframe USS environments.
Comfortable working cross-functionally with security architects, system programmers, middleware teams, and auditors in complex enterprise technology settings.
Demonstrates deep operational expertise in USS identity and access management, audit controls, and production security incident support.