Senior Mainframe Systems Programmer – ISV z/OS-2

Ensono • Madison, WI, United States • Posted June 27, 2026

Location Madison, WI
Job Type Full-time
Category other-general
Posted June 27, 2026
Senior Mainframe Systems Programmer – ISV z/OS-2Remote - United StatesJR013893
We are seeking an experienced **ISV z/OS Systems Programmer** with strong expertise in the installation, maintenance, troubleshooting, and migration of Independent Software Vendor (ISV) products on the IBM z/OS platform. This role will focus heavily on **evaluating, replacing, and migrating Broadcom (CA) mainframe products** with alternative solutions while maintaining operational stability and performance.
The ideal candidate will possess deep technical knowledge of **mainframe systems programming, SMP/E software management, IBM utilities, and ISV product lifecycle management** , along with experience performing **product migrations and conversions** between competing vendor tools.
**Key Responsibilities**
+ Install, configure, maintain, and upgrade **third-party ISV software products** in a z/OS environment.
+ Lead initiatives to **replace mainframe products** with alternative vendor so...

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