Our client is seeking a IT System Administrator (10+ years) to manage Windows and Linux infrastructure using VMware, Hyper-V, Active Directory, Entra ID, and cloud administration platforms Join a Networks and Infrastructure team supporting enterprise server, network, cloud, and security operations.

This role manages Windows and Linux environments, cloud platforms, backup and disaster recovery processes, monitoring tools, and Tier 2/Tier 3 escalations.

The position also supports automation, reporting, documentation, and vendor and licence management activities. 6 month contract, 5 days per week onsite in Etobicoke Must Haves 10+ years administering Windows and Linux servers in physical and virtual environments Administration of VMware , Hyper-V, Active Directory, Entra ID, Group Policy, and MFA Administration of LAN/WAN , DNS, DHCP, VPN, firewalls, switches, and Wi-Fi infrastructure Administration of Microsoft , Azure, AWS, or Google Workspace environments Experience with Power BI and Crystal Reports Nice to Have ERP experience Manufacturing experience Responsibilities Server management: Install, configure and maintain Windows and Linux servers, both physical and virtual (VMware, Hyper-V).





User and access management: Manage Active Directory or Entra ID accounts, groups, permissions, Group Policy and MFA.

Network administration: Look after LAN/WAN, DNS, DHCP, VPN, firewalls, switches and Wi-Fi.

Cloud administration: Manage Microsoft , Azure, AWS or Google Workspace tenants and resources.

Monitoring and performance: Watch system health, uptime and capacity with tools such as Zabbix, Nagios, PRTG or Datadog.

Backup and disaster recovery: Run backups (Veeam, Acronis or similar), test restores and maintain DR and business continuity plans.

Security: Apply patches and updates, manage antivirus/EDR, harden systems, review logs and respond to incidents.

Troubleshooting and support: Handle Tier 2 and Tier 3 escalations for hardware, software and network issues.

Automation: Script routine tasks in Power

Shell, Bash or Python.

Documentation: Keep system configurations, procedures, network diagrams and asset inventory up to date.

Vendor and licence management: Work with vendors, track licences and support hardware and software procurement.

📌 IT System Administrator to manage Windows and Linux infrastructure using VMware, Hyper-V, Active Directory, Entra ID, and cloud administration platforms (Toronto)
🏢 S.i. Systems
📍 Toronto