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# Lead Mainframe Systems Programmer - z/OS Infrastructure

- **Company:** McClure Engineering Co.
- **Location:** United States (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Unix, Computer Programming, Disaster Recovery, Job Control Language (JCL), Rexx (Programming Language), Mainframes, Z/OS, Data Storage Management
- **Published:** October 18, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=f6d800ae5c7fd567

## About the Role

* Extensive hands-on experience in z/OS / Mainframe Systems Programming.
 * Strong experience with z/OS installation, upgrades, configuration, and maintenance.
 * Hands-on experience using SMP/E to install and maintain IBM and ISV software products.
 * Working knowledge of USS, JCL, REXX, and z/OS infrastructure troubleshooting.
 * Experience supporting enterprise production mainframe environments., * Hands-on experience with z/OSMF and Zowe.
 * Experience with DFSMS, DFHSM, and mainframe storage management.
 * Experience with z/OS version migrations, system automation, and disaster recovery.

Experience:

 * z/OS / Mainframe Systems Programming: 8 years (Required)
 * SMP/E, PTF, and APAR maintenance: 6 years (Required)
 * z/OS UNIX System Services (USS): 6 years (Required)

## Description

* We are seeking experienced Lead Mainframe Systems Programmers with strong expertise in IBM z/OS operating system infrastructure, software installation, system upgrades, maintenance, and production support.
 * The ideal candidate will have hands-on experience maintaining enterprise z/OS environments, including IBM and third-party ISV products, and supporting modern mainframe infrastructure technologies., * Install, configure, upgrade, and maintain IBM z/OS operating systems and infrastructure components.
 * Perform software installation and maintenance using SMP/E, including PTFs and APARs.
 * Install, upgrade, configure, and support IBM and third-party ISV products.
 * Support z/OS UNIX System Services (USS), z/OSMF, and Zowe environments.
 * Administer and troubleshoot DFSMS and DFHSM storage management components.
 * Develop and maintain JCL and REXX scripts for infrastructure administration and automation.
 * Troubleshoot z/OS system-level incidents and perform root cause analysis.
 * Support system upgrades, maintenance windows, disaster recovery testing, and production stability.
 * Collaborate with operations, application, storage, and infrastructure teams.