{"schemaVersion":"jobsearcher.job.v1","id":"7fdd00a5939e8dbe1fedab41","url":"https://jobsearcher.com/jobs/7fdd00a5939e8dbe1fedab41","canonicalUrl":"https://jobsearcher.com/jobs/7fdd00a5939e8dbe1fedab41","title":"z/OS Mainframe Operator","description":"TB Consulting for CVS HealthcareRole: z/OS Mainframe Operations Specialist (L1/L2)Client: Major Healthcare Entity (Phoenix-based)Location: 100% Remote. Must live in the U.S. and not require sponsorshipShift: 1st and 3rd Shift (Overnight) and Weekends include some Sundays. U.S. MST TimeCompensation: W2 or 1099Opportunity OverviewWe are seeking a high-caliber Mainframe Operations Specialist to join a mission-critical infrastructure team supporting a large-scale healthcare environment. This is not a \\\"watch and wait\\\" batch role; you will have direct responsibility for HMC operations, System IPLs, and POR execution across a complex multi-LPAR environment.If you have a \\\"keep the lights on\\\" mentality and thrive in high-availability environments where uptime is measured in lives impacted, we want to talk to you.Core Technical ResponsibilitiesSystem Health & LPAR ManagementPerform daily production/QA checkouts of all LPARs, verifying started tasks and hardware configurations.Monitor and manage JES spool utilization; add capacity, purge output, or cancel batch jobs to maintain stability.Manage system resources (CPU, JNUM, JQES, BUFX) and execute \\\"spin-offs\\\" for resource-intensive tasks.Execute recycle procedures for MQ, DB2, CICS, and zOSconnect subsystems.Console & Hardware Operations (HMC)Manage restricted-access HMC operations, including POR profiles, LPAR load/dump profiles, and capacity weights.Execute Power-On Resets (POR) of mainframes, Coupling Facilities, and IDAA devices.Perform Data Transfer Pool Swaps and manage STP/time arbiter roles.Support z/OS hardware upgrades by configuring BCPii networking and creating new CEC profiles.Change Management & IPLsOwn the Sunday Mainframe Change Window, managing full System IPLs and PARMLIB updates.Maintain the master IPL SHEET (SOP), accounting for PORs, GDPS changes, and z/OS upgrades.Lead weekly Thursday IPL review meetings with Systems and Hardware Engineering.Emergency Response & SupportIdentify and mitigate looping jobs; perform address space or full stand-alone dumps on crashed systems.Execute DBAR system restoration in alternate data centers during major outages.Provide Level 1/2 triage, including TSO session management and user ID restoration.QualificationsMust-Have: Hands-on experience in a Production z/OS Mainframe Operations environment.Command Line Mastery: Proficiency with JES2/JES3, VTAM, TSO/ISPF, and MVS system commands.Hardware Familiarity: Proven experience with HMC, POR, and LPAR configuration.Operational Discipline: Experience managing GDPS/Parallel Sysplex environments is highly preferred.Shift Flexibility: Must be comfortable and proven in a 3rd shift (Overnight) capacity.Why This Role?This is a rare 100% remote opportunity to work on a modern mainframe stack (z16/z15) for a massive healthcare infrastructure. You will be a key player in the Sunday Change Windows, giving you high visibility and technical ownership that most \\\"Operator\\\" roles lack.","company":"Tbc","rawCompany":"tbc","city":"Millbrae","state":"CA","isRemote":false,"isActive":true,"createdAt":"2026-10-07T03:14:50.425Z","occupations":[{"code":"15-1244.00","title":"Network and Computer Systems Administrators","slug":"network-and-computer-systems-administrators"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"},{"code":"15-1231.00","title":"Computer Network Support Specialists","slug":"computer-network-support-specialists"}],"industries":[{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"541513","title":"Computer Facilities Management Services","slug":"computer-facilities-management-services"},{"code":"541519","title":"Other Computer Related Services","slug":"other-computer-related-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"z/OS Mainframe Operator","description":"TB Consulting for CVS HealthcareRole: z/OS Mainframe Operations Specialist (L1/L2)Client: Major Healthcare Entity (Phoenix-based)Location: 100% Remote. Must live in the U.S. and not require sponsorshipShift: 1st and 3rd Shift (Overnight) and Weekends include some Sundays. U.S. MST TimeCompensation: W2 or 1099Opportunity OverviewWe are seeking a high-caliber Mainframe Operations Specialist to join a mission-critical infrastructure team supporting a large-scale healthcare environment. This is not a \\\"watch and wait\\\" batch role; you will have direct responsibility for HMC operations, System IPLs, and POR execution across a complex multi-LPAR environment.If you have a \\\"keep the lights on\\\" mentality and thrive in high-availability environments where uptime is measured in lives impacted, we want to talk to you.Core Technical ResponsibilitiesSystem Health & LPAR ManagementPerform daily production/QA checkouts of all LPARs, verifying started tasks and hardware configurations.Monitor and manage JES spool utilization; add capacity, purge output, or cancel batch jobs to maintain stability.Manage system resources (CPU, JNUM, JQES, BUFX) and execute \\\"spin-offs\\\" for resource-intensive tasks.Execute recycle procedures for MQ, DB2, CICS, and zOSconnect subsystems.Console & Hardware Operations (HMC)Manage restricted-access HMC operations, including POR profiles, LPAR load/dump profiles, and capacity weights.Execute Power-On Resets (POR) of mainframes, Coupling Facilities, and IDAA devices.Perform Data Transfer Pool Swaps and manage STP/time arbiter roles.Support z/OS hardware upgrades by configuring BCPii networking and creating new CEC profiles.Change Management & IPLsOwn the Sunday Mainframe Change Window, managing full System IPLs and PARMLIB updates.Maintain the master IPL SHEET (SOP), accounting for PORs, GDPS changes, and z/OS upgrades.Lead weekly Thursday IPL review meetings with Systems and Hardware Engineering.Emergency Response & SupportIdentify and mitigate looping jobs; perform address space or full stand-alone dumps on crashed systems.Execute DBAR system restoration in alternate data centers during major outages.Provide Level 1/2 triage, including TSO session management and user ID restoration.QualificationsMust-Have: Hands-on experience in a Production z/OS Mainframe Operations environment.Command Line Mastery: Proficiency with JES2/JES3, VTAM, TSO/ISPF, and MVS system commands.Hardware Familiarity: Proven experience with HMC, POR, and LPAR configuration.Operational Discipline: Experience managing GDPS/Parallel Sysplex environments is highly preferred.Shift Flexibility: Must be comfortable and proven in a 3rd shift (Overnight) capacity.Why This Role?This is a rare 100% remote opportunity to work on a modern mainframe stack (z16/z15) for a massive healthcare infrastructure. You will be a key player in the Sunday Change Windows, giving you high visibility and technical ownership that most \\\"Operator\\\" roles lack.","datePosted":"2026-10-07T03:14:50.425Z","dateModified":"2026-10-07T03:14:50.425Z","hiringOrganization":{"@type":"Organization","name":"Tbc","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Millbrae","addressRegion":"CA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"7fdd00a5939e8dbe1fedab41"},"url":"https://jobsearcher.com/jobs/7fdd00a5939e8dbe1fedab41"}}