Pay: CA$80,000.00-CA$90,000.00 per year
Are you the person other IT professionals turn to when they can't solve the problem? We're looking for an experienced Senior Systems Engineer to join a growing technology team supporting complex client environments. We're hiring across two areas: Projects & Solutions – designing, implementing and migrating infrastructure solutions. Tier 3 Infrastructure & Escalations – solving complex technical issues and acting as the senior escalation point for critical client environments. If you're strongest in one area but experienced across both, we'd like to hear from you.
What You'll Do Design, implement and support Microsoft and hybrid infrastructure environments
Lead infrastructure projects from design through implementation and handover
Provide Tier 3 troubleshooting and escalation support




Deploy and support VMware and Hyper-V environments
Administer Windows Server, Active Directory, Group Policy and Azure/Entra ID
Support Microsoft 365, Exchange Online and SharePoint
Implement and support RDS/Terminal Services, VPN and remote‑access solutions
Work with SAN/NAS, storage, backup and disaster recovery solutions
Troubleshoot LAN/WAN, firewalls, security and connectivity
Review client environments and recommend improvements to performance, security and resiliency
Develop technical documentation and implementation plans
Participate in an after‑hours/on‑call rotation

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📌 Senior Systems Engineer (Ontario)
🏢 Accu-staff Resource Systems Enterprises
📍 Ontario