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Sr. IT System Administrator

  • Toronto, ON
  • On-site
  • Posted Sep 1, 2026
  • 1 position

$70,000–$110,000 / year

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Employment type
Full-time
Experience level
Senior · 5+ years
Minimum education
Professional degree
Posting language
English
Working hours
40 hours per week

Job summary

The Senior IT System Administrator is responsible for maintaining secure and reliable infrastructure, cloud services, and endpoint platforms. This role serves as an L3 escalation point for complex technical issues and provides guidance to junior team members.

Job details

The Senior IT System Administrator is responsible for maintaining secure and reliable infrastructure, cloud services, and endpoint platforms. This role serves as an L3 escalation point for complex technical issues and provides guidance to junior team members. Candidates must have at least 5 years of progressive IT systems administration experience in a Microsoft enterprise environment. A college diploma or equivalent certification in Information Technology is required.

What you’ll do

The Senior IT System Administrator is responsible for maintaining secure and reliable infrastructure, cloud services, and endpoint platforms. This role serves as an L3 escalation point for complex technical issues and provides guidance to junior team members.

Requirements

Candidates must have at least 5 years of progressive IT systems administration experience in a Microsoft enterprise environment. A college diploma or equivalent certification in Information Technology is required.

Benefits

  • Health benefits
  • Dental benefits
  • Group RRSP program
  • Support for new parents
  • Comprehensive vacation package

Listed skills

  • Microsoft Azure · Preferred
  • Change Management · Preferred
  • Active Directory · Preferred
  • Microsoft 365 · Preferred
  • VMware · Preferred
  • Troubleshooting · Preferred

Other relevant skills

Identified from the job description. Confirm important requirements above.

  • Azure
  • Microsoft 365
  • System administration
  • Intune
  • PowerShell
  • Windows Server
  • Active Directory
  • Cloudflare
  • Identity management
  • Endpoint management
  • Security operations
  • Network operations
  • ITIL
  • Change management
  • Troubleshooting
  • VMware

Job areas

  • Technology
  • Software
  • Security & Safety
  • Administrative

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