z/OS Systems Hardware Specialist

TN United Kingdom; Sheffield; On-site; GBP 50,000 - 90,000; Full time

Job summary

An established industry player seeks a skilled z/OS Systems Hardware Specialist to join their dynamic team in Sheffield. In this pivotal role, you will support and maintain Mainframe Processor operations, ensuring high availability and system efficiency. Your expertise in hardware maintenance, system upgrades, and troubleshooting will be crucial as you lead critical upgrades of IBM Mainframes. Enjoy a hybrid work model that allows flexibility while contributing to next-generation technology implementations in a high-performance IT environment. If you're passionate about Mainframe technology, this opportunity is perfect for you.

Qualifications

• Extensive experience in Mainframe hardware support and configuration.
• Strong knowledge of IBM z/OS systems and tools.
• Hands-on experience with IBMz processor generations.

Responsibilities

• Oversee the UK Mainframe Processor estate in a multi-LPAR Sysplex environment.
• Lead upgrades of IBM Mainframe Processors to the latest generations.
• Work closely with cross-functional teams to ensure system efficiency.

Skills

Mainframe hardware support

IBM z/OS systems

Troubleshooting skills

Communication skills

Sysplex expertise

Tools

HMC

HCD

TSO/ISPF

SDSF

JCL

CHPID Mapping Tool

JES2

Job description

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z/OS Systems Hardware Specialist, Sheffield

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Client:

Shape Your Future with Us

Location:

Sheffield, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Reference:

df30cfdbe40c

Job Views:

3

Posted:

26.04.2025

Expiry Date:

10.06.2025

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Job Description:

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 Mainframe Processor operations within a multi-LPAR, multi-site Sysplex environment. The role involves hardware maintenance, system upgrades, troubleshooting, and performance optimization to ensure high availability and efficiency.

Key Responsibilities

• Mainframe Hardware Support & Maintenance:
  • Oversee the UK Mainframe Processor estate in a multi-LPAR Sysplex environment.
  • Troubleshoot and resolve day-to-day hardware incidents and system failures.
• Lead upgrades of IBM Mainframe Processors to the latest generations (z14, z15, z16).
• Upgrade Microcode levels on Mainframe Processors, Coupling Facilities, HMCs, and TKEs.
• System Configuration & Optimization:
  • Build and activate IODF/IOCDS configurations for storage and system updates.
  • Update PR/SM definitions via HMC.
• Work closely with cross-functional teams to ensure system efficiency and reliability.
• Maintain compliance with risk management and regulatory processes.
• Provide after-hours support for critical hardware implementations and upgrades.

Required Skills & Experience

• Extensive experience in Mainframe hardware support and configuration.
• Strong knowledge of IBM z/OS systems and tools, including:
  • HMC, HCD, TSO/ISPF, SDSF, JCL, CHPID Mapping Tool, JES2.
• Hands-on experience with IBMz processor generations (z14, z15, z16).
• Sysplex and Coupling Facility expertise.
• Excellent troubleshooting and problem-solving skills.
• Effective communication skills, with the ability to explain complex technical concepts to a broad audience.

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.
• Location: Sheffield or Wakefield.
• Hybrid Work Model: Work-from-home flexibility with on-site presence when required.

Why Join?

• Work on critical IBM Mainframe upgrades in a high-performance IT environment.
• Lead next-generation mainframe technology implementations.
• Collaborate in a structured, technology-driven organization.

If you are a Mainframe Hardware Specialist with strong z/OS expertise, wed love to hear from you!