Senior Windows/Linux Systems Admin (Hybrid)

Quantum Technology Recruiting Inc. (QTR); Toronto; Hybrid; CAD 115,000 - 125,000; Full time

Job summary

Quantum Technology Recruiting Inc. (QTR) is seeking a Senior Windows System Administrator in Etobicoke to manage enterprise Windows and Linux server infrastructures. The role covers patching, automation, vulnerability remediation, and high-availability environments across physical and virtual platforms.

Responsibilities include patching, troubleshooting, and cloud/VMware support with ITIL-aligned change management. The position offers a hybrid work arrangement requiring 3 days in Etobicoke.

Qualifications

• 8+ years of hands-on systems administration experience in enterprise Windows and Linux environments.
• Strong experience with patching, hardening, and vulnerability remediation (SCCM, Ansible).
• Experience with virtualization, cloud platforms, and high-availability environments.

Responsibilities

• Manage and maintain Windows and Linux server environments, including builds, configuration, upgrades, decommissioning, clustering, and production support.
• Own enterprise patching and vulnerability remediation using SCCM, Ansible, and vulnerability platforms.
• Troubleshoot complex infrastructure issues across OS, virtualization, storage, networking, applications, and cloud environments; perform root-cause analysis.

Skills

Windows Server

Linux/RHEL

SCCM

Ansible

PowerShell

Bash

VMware

Azure

AWS

Active Directory

Networking

ITIL

Job description

Quantum Technology Recruiting Inc. (QTR) is seeking a Senior Windows System Administrator in Etobicoke to manage enterprise Windows and Linux server infrastructures. The role covers patching, automation, vulnerability remediation, and high-availability environments across physical and virtual platforms.

Responsibilities include patching, troubleshooting, and cloud/VMware support with ITIL-aligned change management. The position offers a hybrid work arrangement requiring 3 days in Etobicoke.