z/OS Systems Hardware Specialist

z/OS Systems Hardware Specialist | Mainframe Support & Upgrades

Role Overview

We are looking for an experienced z/OS Systems Hardware Specialist to support and maintain a multi-LPAR, multi-site Sysplex mainframe environment. The ideal candidate will have deep expertise in IBM Mainframe Processors, ensuring their operation, maintenance, and continuous upgrades as technology advances.

Key Responsibilities

• Mainframe Hardware Management: Maintain and support the UK Mainframe Processor estate within a multi-LPAR Sysplex environment.
• Processor Upgrades: Lead IBM Mainframe Processor upgrades to the latest generations (z14, z15, z16).
• Microcode & Configuration Updates:
  • Upgrade Microcode levels on Mainframe Processors, Coupling Facilities, HMCs, and TKEs.
  • Manage IODF/IOCDS configurations to support Storage estate changes and key projects.
  • Update PR/SM definitions via HMC.
• Incident Troubleshooting & Problem Resolution: Provide day-to-day incident support and problem resolution for hardware-related issues.
• Out-of-Hours Support: Provide support for hardware implementations and project-related changes outside standard business hours when required.
• Risk & Compliance: Ensure all operations align with risk management protocols and regulatory processes.
• Cross-Team Collaboration: Work closely with stakeholders across business areas, ensuring clear communication and efficient problem-solving.

Required Skills & Experience

• Extensive experience in Mainframe hardware support and configuration.
• Strong knowledge of z/OS and IBM Mainframe tools, including:
  • HMC, HCD, TSO/ISPF, SDSF, JCL, CHPID Mapping Tool, JES2.
• Expertise in IBM Processor generations: z14, z15, z16.
• Sysplex and Coupling Facility knowledge.
• Excellent problem determination and troubleshooting skills.
• Effective communication skills, with the ability to articulate complex technical details to diverse audiences.
• Proven ability to develop strong networks across business areas.

Preferred Skills (Not Mandatory but Advantageous)

• Automation, GDPS, Rexx, and CLIST scripting.
• OSA-ICC definition and configuration.
• Basic understanding of DWDM technology.
• Familiarity with Disk/Tape infrastructure.

Work Environment & Flexibility

• Location: Sheffield or Wakefield UK.
• Hybrid Work Model: Flexibility to work from home with occasional on-site presence as required.

Why Join?

• Work with cutting-edge IBM Mainframe technology in a mission-critical environment.
• Be part of a highly skilled team in a multi-site Sysplex environment.
• Opportunity to lead mainframe upgrades and modernization initiatives.

If you are an experienced z/OS Systems Hardware Specialist with a strong background in mainframe upgrades, troubleshooting, and configuration, wed love to hear from you!