IT System Administrator to manage Windows and Linux infrastructure using VMware, Hyper-V, Active Directory, Entra ID, and cloud administration platforms

S.I. Systems Ltd.; Toronto; On-site; CAD 90,000 - 120,000; Full time

Job summary

S.I. Systems Ltd. in Toronto seeks an IT System Administrator (10+ years) to manage Windows and Linux infrastructure using VMware, Hyper‑V, Active Directory, Entra ID, and cloud platforms.

The role supports enterprise server, network, cloud, and security operations onsite in Etobicoke. Responsibilities include server management, user and access management, network admin, cloud administration, monitoring, backups, DR, security, automation, and documentation.

Qualifications

• 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 365, Azure, AWS, or Google Workspace environments.
• Experience with Power BI and Crystal Reports.

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 365, 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 PowerShell, 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.

Skills

Windows

Linux

VMware

Hyper-V

Active Directory

Entra ID

Group Policy

MFA

LAN/WAN

DNS/DHCP/VPN

Microsoft 365

Azure

AWS

Google Workspace

Power BI

Crystal Reports

Veeam/DR

Bash/PowerShell/Python

Documentation

Tools

VMware

Hyper-V

Active Directory

Entra ID

Microsoft 365

Azure

AWS

Google Workspace

Zabbix

Nagios

PRTG

Datadog

Job description

IT System Administrator to manage Windows and Linux infrastructure using VMware, Hyper-V, Active Directory, Entra ID, and cloud administration platforms

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 365, 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 365, 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 PowerShell, 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.

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 365, 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 365, 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 PowerShell, 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.

Disclaimer:
AI may be used in evaluating candidates.
This posting is for an existing vacancy.