z/VM Systems Programmer

A large global enterprise services client is seeking an experienced IBM z/VM Systems Programmer to support and enhance a complex, multi-tenant mainframe virtualization environment. The role focuses on operational stability, performance optimization, automation, and support of Linux on IBM Z workloads.

Key Responsibilities:

• Install, configure, maintain, and upgrade IBM z/VM environments, including PTF management.
• Administer CP, CMS, spool, paging, and minidisk configurations.
• Manage z/VM virtual networking (VSWITCH, NICDEF, VLANs, routing/bridging).
• Provision and support Linux on IBM Z guests (RHEL/SLES) under z/VM.
• Perform performance monitoring, capacity planning, and tuning across CPU, memory, and I/O.
• Support storage integrations including FCP / SAN-attached storage.
• Develop and maintain operational documentation, automation, and runbooks.
• Provide L2/L3 support, incident/problem management, and participate in change activities.
• Collaborate with global infrastructure teams (mainframe, storage, network, security).

Required Skills:

• Strong hands-on experience with IBM z/VM in enterprise environments.
• Deep understanding of CP/CMS, guest lifecycle management, and resource allocation.
• Experience with VSWITCH and z/VM networking concepts.
• Performance analysis and troubleshooting expertise.
• Experience supporting Linux guests on IBM Z.
• Comfortable working in managed services / large client environments.

Nice-to-Have:

• DirMaint, SMAPI, RACF / ESM integration.
• z/OS exposure or shared mainframe environments.
• Experience supporting banking or regulated enterprise clients.
• Scripting / automation (REXX or similar).

Interview Focus:

• Day-to-day z/VM operations and real incident examples.
• Performance tuning and networking scenarios.
• Change management and production support experience.