Z/OS Specialist
Hybrid
Sheffield, United Kingdom
Freelance
17-03-2025
Job Specifications
Role z/OS Systems Hardware Specialist
Location Sheffield, UK (hybrid)
Start Date - ASAP
Duration - A minimum of 6 months
Contract inside IR35
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.
Processor & Microcode Upgrades:
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.
Collaboration & Risk Management:
Work closely with cross-functional teams to ensure system efficiency and reliability.
Maintain compliance with risk management and regulatory processes.
Out-of-Hours Support:
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.
About the Company
IT'S NOT RECRUITMENT. IT'S BUSINESS TRANSFORMATION. We help businesses align their people, process and technology with their business strategy and vision. Recruitment companies find people who fit the job spec. We find the people that drive business forward, combining talent with technology to ensure a perfect fit for your CONTRACT and PERMANENT needs. AREAS: * Business Change & Transformation * Cloud & Enterprise * Cyber Sec, Data Analytics & Tech * ERP & Business Intelligence VENDORS: Workday, ServiceNow, Salesforce... Know more
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