IT Infrastructure & Security Specialist
markham, on, Canada • Posted May 29, 2026
Job Type:
Full-time
Location:
markham, on
Posted:
May 29, 2026
Category:
Other-General
Application Deadline:
July 08, 2026
Role Description
Overview We are seeking an
IT Infrastructure & Security Specialist
to join our IT Operations team. This role combines
cloud infrastructure management, cybersecurity operations, networking, and L1/L2 technical support .
The ideal candidate has strong experience managing
Microsoft 365, Azure, AWS infrastructure, networking, and enterprise systems , while also supporting internal users and maintaining secure, reliable IT operations in a fast-growing organization. The role also plays an important part in maintaining Frontier’s
security posture , including security tooling, monitoring, and internal security awareness initiatives.
Key Responsibilities
Infrastructure & Cloud Operations
Administer and maintain
Microsoft 365 services
including Entra ID (Azure AD), Exchange Online, SharePoint, endpoint management, and security configurations.
Support and maintain
Azure and AWS clo...
IT Infrastructure & Security Specialist
to join our IT Operations team. This role combines
cloud infrastructure management, cybersecurity operations, networking, and L1/L2 technical support .
The ideal candidate has strong experience managing
Microsoft 365, Azure, AWS infrastructure, networking, and enterprise systems , while also supporting internal users and maintaining secure, reliable IT operations in a fast-growing organization. The role also plays an important part in maintaining Frontier’s
security posture , including security tooling, monitoring, and internal security awareness initiatives.
Key Responsibilities
Infrastructure & Cloud Operations
Administer and maintain
Microsoft 365 services
including Entra ID (Azure AD), Exchange Online, SharePoint, endpoint management, and security configurations.
Support and maintain
Azure and AWS clo...
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