Mainframe Engineer

Description
We are seeking an IBM Mainframe Full Stack Systems Engineer experienced with end to end engineering and modernization of large scale enterprise IBM Z environments. This role requires deep, hands on expertise across multiple z/OS versions, core subsystems, security platforms, storage, networking, virtualization, and performance management in highly regulated, mission critical environments.
This role is engineering first, focused on architecture, deep technical analysis, system tuning, and modernization readiness. The engineer will play a critical role in proofing the mainframe platform, ensuring technical compatibility, stability, and performance as the stack evolves.
Core Responsibilities
z/OS Platform Modernization & Upgrade Engineering
Engineer for multiple concurrent legacy and current z/OS versions including Version interoperability, Incremental upgrade paths, Dependency validation across the stack, Pre upgrade technical assessments, Post upgrade stabiliz...