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Mainframe z/VM & Linux Engineer

Phoenix, AZ • On-site

Infinite Computer Solutions (ICS)
IT Services • 5 - 10K employees

Other

Re-posted 2 days ago


Key responsibilities

  • Install, configure, and maintain IBM z/VM systems and manage the lifecycle of virtual machines including provisioning, scaling, and decommissioning.

  • Install, configure, and maintain Linux distributions on IBM Z, support deployment and management of Linux workloads, and perform system updates and security compliance tasks.

  • Monitor system performance, troubleshoot issues, and support automation and integration tasks related to provisioning, operations, and security.


Infinite Computer Solutions rating

7.2

Company rating: 7.2 out of 10

Based on 8 frontline employees who took The Breakroom Quiz


Job description

We're seeking for an Mainframe z/VM & Linux Engineer for our direct client. Please review the below job Description and revert with your interest for the same.

Job Details:

Role: Mainframe z/VM & Linux Engineer

Location : Phoenix, AZ metro area; hybrid working model (3 days week)

Start date : ASAP

Contract to hire

Overview:

The Role:

We are seeking an experienced Mainframe z/VM & Linux Engineer to support IBM Z virtualization environments and Linux on Z platforms. This role is responsible for provisioning, maintaining, and optimizing virtual machines and Linux systems running on z/VM, ensuring high availability, performance, and secure operations in enterprise environments.

Responsibilities:

z/VM Administration:

  • Install, configure, and maintain IBM z/VM systems
  • Manage lifecycle of virtual machines (guests):
    • Provisioning
    • Scaling
    • Decommissioning
  • Administer z/VM components such as:
    • DirMaint
    • VMSES/E
    • RACF for z/VM security
  • Apply system maintenance:
    • RSUs, PTFs, APARs, and service updates
  • Perform system IPLs and hardware configuration updates via HMC

Linux on Z Administration:

  • Install, configure, and maintain Linux distributions on IBM Z:
    • RHEL, SUSE, Ubuntu
  • Support deployment and management of Linux workloads on z/VM
  • Ensure system stability, performance, and security compliance
  • Perform patching, upgrades, and vulnerability remediation
  • Manage file systems, storage, and network configurations

Operations & Support:

  • Monitor system performance and availability:
    • CPU, memory, I/O utilization
    • Workload performance and capacity
  • Troubleshoot and resolve system issues:
    • Performance bottlenecks
    • VM failures
    • Linux system errors
  • Analyze logs and system metrics to ensure operational stability
  • Provide L2/L3 support for production environments

Automation & Integration

  • Automate provisioning and operational tasks using:
    • REXX, Shell scripting, Python (preferred)
  • Support DevOps and integration initiatives:
    • CI/CD pipelines
    • Container platforms (Docker, Kubernetes optional)
  • Assist application teams with deploying workloads on Linux on Z

Security & Compliance

  • Implement and maintain security controls:
    • RACF integration for z/VM
    • Linux OS hardening
  • Ensure compliance with enterprise standards and audit requirements
  • Support vulnerability management and patch remediation

Governance & Documentation

  • Maintain system documentation and configuration records
  • Ensure all changes follow:
    • ITIL / ServiceNow change management processes
  • Support DR planning and execution for z/VM and Linux systems

Required Qualifications:

  • Strong experience with:
    • IBM z/VM (z/VM 6.x / 7.x)
    • Linux on IBM Z (RHEL/SUSE/Ubuntu)
  • Hands-on experience with:
    • Virtual machine provisioning and management
    • VM directory management (DirMaint)
    • System maintenance (RSUs, APARs, VMSES/E)
  • Knowledge of:
    • HMC operations and IPL processes
    • Storage (DASD) and networking on z systems
  • Strong troubleshooting skills across:
    • z/VM system issues
    • Linux OS performance and configuration

Preferred Experience:

  • Knowledge of Sysplex, networking, and storage integration
    • Experience with Monitoring tools (e.g., Grafana, OMEGAMON) and Automation tooling (Ansible, scripting)
    • Exposure to Cloud integration / hybrid environments and Container workloads on Linux on Z

What Infinite Computer Solutions employees say

Pay

Benefits

Hours and flexibility

Workplace

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