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# Mainframe Engineer

- **Company:** Pomeroy Assoc., L.P.
- **Location:** Chandler, AZ, United States
- **Salary:** $104,000.0
- **Contract:** Permanent contract
- **Skills:** Ubuntu (Operating System), Software Documentation, Linux, DevOps, File Systems, IBM Parallel Sysplex, Monitoring of Systems, Rexx (Programming Language), Python (Programming Language), Linux Distribution, Log Analysis, Mainframes, Network Configuration and Change Management, IBM Resource Access Control Facility, Red Hat Enterprise Linux, Ansible, Shell Script, Virtual Machines, Virtualization Technology, Software Vulnerability Management, SUSE Linux, System Availability, Grafana, Containerization, Kubernetes, Deployment Automation, Ibm Z/vm, Omegamon, Cloud Integration, Docker, Servicenow
- **Published:** June 24, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=73b786e6477e4fc8

## About the Role

Do you have experience in Virtualization projects?, * 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

IND 123

## Description

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.

 * This role requires employees to live in or around the Phoenix, AZ area. You will be responsible to be onsite 3 days a week. We will consider candidates who are willing to relocate to the area.

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


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