Full-time

Senior Mainframe Network Engineer

Posted by Teckhorizon Inc • Toronto, Ontario, Canada

📍 Toronto, Ontario 🕒 February 23, 2026

About the Role

<b>About the Role</b> <p data-end="624" data-start="485">We are hiring a Senior Mainframe Network Engineer to support a large enterprise IBM Z environment that powers critical government services.</p> <p data-end="880" data-start="626">This role focuses on maintaining system stability, supporting upgrades, and troubleshooting network-related issues within a mainframe environment. If you have strong experience working with z/OS or enterprise mainframe systems, we encourage you to apply.</p> <b>Key Responsibilities</b> <p data-end="1336" data-start="914"> Support and maintain mainframe network infrastructure<br data-end="972" data-start="969" /> Assist with IBM Z hardware installations and configurations<br data-end="1036" data-start="1033" /> Support disaster recovery and backup environments<br data-end="...

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