Senior Mainframe Engineer - z/OS Upgrade Leader (Remote)

First National Bank of Omaha is seeking a Senior Mainframe Engineer to lead and modernize z/OS environments. The role focuses on standardizing upgrades, automations, and maintenance across enterprise mainframe platforms, delivering reliable service.

You will guide teams, develop documentation, and collaborate with cross-functional groups to minimize business impact during OS upgrades. Remote work options and senior-scale responsibilities are available in this strategic role.