Jobs in Markham

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Within 25 km of Markham

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Randstad Digital

System Administrator

Richmond Hill, ON, Canada

Contract

Within 25 km of Markham · About 13.6 km from the city centre

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Job details

Job type: Contract
Apply by: Dec 11, 2026
Experience: 3–5 years of applied cybersecurity and endpoint protection experience (Intune, EDR, MFA).
Posted: Nov 11, 2026

Original job description

IT Systems & Infrastructure Administrator

Location: Richmond Hill, ON (On-site, 5 days/week)

Position Type: 6-Month Contract (Convertible to Full-Time)

Must be eligible to work in Canada

Roles and responsibilities:

We are seeking a hands-on IT Systems & Infrastructure Administrator to oversee, secure, and support our internal corporate IT environment. In this role, you will act as the primary technical point of contact across Cisco networking, firewall security, Microsoft 365 / Entra ID, endpoint management, and day-to-day user support.

Key Responsibilities

Network & Security Administration: Configure, maintain, and monitor Cisco switches, routers, firewalls, and Cisco Meraki solutions (MX firewalls, MS switches, MR access points). Manage VLANs, routing, DNS/DHCP, and site-to-site/client VPNs.
Microsoft 365 & Identity Management: Administer Exchange Online, Teams, SharePoint, and OneDrive. Manage Microsoft Entra ID, RBAC, Multi-Factor Authentication (MFA), and Conditional Access policies. Oversee user provisioning and offboarding.
Endpoint & Systems Management: Deploy and maintain Windows 10/11 and macOS devices via Microsoft Intune. Manage OS patching, BitLocker encryption, application rollouts, and Defender/EDR endpoint security.
IT Operations & Support: Deliver responsive Level 1 and Level 2 end-user support for hardware, software, printing, and connectivity. Track and resolve tickets promptly.
Cybersecurity & Governance: Maintain routine backup/recovery schedules, monitor security alerts, execute vulnerability remediation, and assist with IT asset/license tracking and vendor coordination.

Required Qualifications

5–8 years of routing, switching, and firewall configuration experience (Cisco and Cisco Meraki preferred).
3–5 years of hands-on Microsoft 365, Exchange Online, and Entra ID administration.
3–5 years of applied cybersecurity and endpoint protection experience (Intune, EDR, MFA).
Technical Breadth: Strong background in troubleshooting LAN/WAN, wireless networks, device lifecycles, and identity access control in an SMB or managed services environment.
Work Arrangement: Willingness and ability to work on-site 5 days a week at our Richmond Hill office (95 Mural St.).

Nice-to-Have Credentials

Post-secondary degree or diploma in Computer Science, Network Engineering, or IT.
Industry certifications: Cisco CCNA, Cisco Meraki CMNA/ECMS, Microsoft 365 Certified: Administrator, Microsoft Intune / Endpoint Administrator, or CompTIA Security+.

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More about this job

Responsibilities

Administer and secure the organization’s network infrastructure, Microsoft 365 environment, identity systems, and Windows and macOS endpoints. Provide Level 1 and Level 2 user support while managing backups, security alerts, vulnerability remediation, IT assets, licenses, and vendor coordination.

Requirements

Requires 5–8 years of routing, switching, and firewall experience, plus 3–5 years administering Microsoft 365, Exchange Online, and Entra ID. Also requires 3–5 years of cybersecurity and endpoint protection experience, broad LAN/WAN and wireless troubleshooting skills, and the ability to work on-site five days per week in Richmond Hill.

Skills

Cisco Networking
Cisco Meraki
Routing and Switching
Firewall Administration
VLAN Management
VPN Configuration
Microsoft 365 Administration
Exchange Online
Microsoft Entra ID
Microsoft Intune
Endpoint Security
Cybersecurity
Windows and macOS Administration
Technical Support
Backup and Recovery
Vulnerability Remediation

Visa sponsorship

Not detected in the job text

Keywords

Cisco
Cisco Meraki
MX Firewalls
MS Switches
MR Access Points
VLANs
Routing
DNS
DHCP
VPN
Microsoft 365
Exchange Online
Microsoft Teams
SharePoint
OneDrive
Microsoft Entra ID
Role-Based Access Control
Multi-Factor Authentication
Conditional Access
Microsoft Intune
Windows 10
Windows 11
macOS
BitLocker
Microsoft Defender
Endpoint Detection and Response
Cybersecurity
Backup and Recovery
Vulnerability Remediation
Cisco CCNA

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