z/OS System Administrator

OP is looking for an experienced z/OS System Administrator to join our team and play a critical role in maintaining and optimizing our Mainframe environment. The ideal candidate will bring deep technical expertise in the z/OS system, proven experience in hardware refresh projects, and a passion for delivering service excellence.

Key Responsibilities

 

• Perform z/OS upgrades (versions 2.4, 2.5, or 3.1) using z/OSMF workflows to ensure smooth transitions and system reliability.
• Provide comprehensive support for zHardware refresh projects across platforms such as z14, z15, and z16.
• Manage and maintain software using SMP/E, ensuring timely upgrades and maintenance of Broadcom and IBM tools.
• Implement and promote z/OS service improvement initiatives and industry best practices.
• Build and manage configurations for new hardware using IODF, HCD, HMC, and IOCP.
• Oversee and maintain core z/OS subsystems, including JES2, ISPF, TCP/IP, USS, and Parallel Sysplex.
• Develop and support automation solutions using REXX and CLIST scripting languages.
• Ensure robust Disaster Recovery support, preparing for and managing system recovery in critical situations.
• Provide 24/7 on-call support to resolve system issues and maintain system availability.
  
   

Required Skills And Expertise

 

• Proven expertise with z/OS upgrades (2.4, 2.5, 3.1) using z/OSMF workflows.
• Expertise in supporting zHardware Refresh projects (z14, z15, z16).
• Proficiency in SMP/E for IBM and Broadcom tool maintenance and upgrades.
• Experience in related configuration tools (IODF, HCD, HMC, IOCP).
• Strong knowledge of core z/OS subsystems (JES2, ISPF, TCP/IP, USS, Parallel Sysplex).
• Experience in REXX, CLIST, and automation scripting.
• Solid understanding of Disaster Recovery processes and IPL flow.
• Experience with problem diagnosis and resolution (abend, wait states, dumps, SLIP).
• Familiarity with OEM product installs, ServerPac, and Shopz/SMP/E retrieval.
• Working knowledge of USS, zFS, VTAM, Connect: Direct, FTP/SFTP, and network protocols.
• Ability to support 24/7 on-call operations