Lead Systems Administrator & Architect

Augmented; Toronto; On-site; CAD 120,000 - 170,000; Full time

Job summary

Augmented is seeking a senior technical leader to own infrastructure architecture across a multi-client managed IT practice and serve as the top escalation point for the technical team.

You will design and architect client infrastructure across on-premises, hybrid, and cloud (Microsoft 365/Azure); lead migrations, build standards, and mentor engineers; advise on roadmaps, risk, and security posture.

Qualifications

• 7+ years of progressive IT experience including at least 2 years in a senior or lead technical role at an MSP or similar multi-client environment.
• Deep expertise in Windows Server, Active Directory/Entra ID, Microsoft 365, virtualization, networking, and firewalls.
• Proven architecture and project delivery track record.
• Strong client-facing communication and leadership skills.
• Relevant senior certifications are an asset.

Responsibilities

• Design and architect client infrastructure across on-premises, hybrid, and cloud (Microsoft 365/Azure).
• Serve as the final escalation point for complex systems, network, and security issues.
• Lead migrations, upgrades, and infrastructure projects from scoping through delivery.
• Set technical standards, build documentation, and improve how the team works.
• Mentor and guide systems administrators and service desk staff.
• Advise clients on roadmaps, risk, and security posture.

Skills

IT leadership

Windows Server

AD/Entra ID

Microsoft 365

Virtualization

Networking

Architecture delivery

Client-facing

Certifications asset

Job description

Our client, a multi-client managed IT provider, is hiring a senior technical leader to own infrastructure architecture across its client base and serve as the top escalation point for the technical team.

What you'll do

• Design and architect client infrastructure across on-premises, hybrid, and cloud (Microsoft 365/Azure)
• Serve as the final escalation point for complex systems, network, and security issues
• Lead migrations, upgrades, and infrastructure projects from scoping through delivery
• Set technical standards, build documentation, and improve how the team works
• Mentor and guide systems administrators and service desk staff
• Advise clients on roadmaps, risk, and security posture

What you bring

• 7+ years of progressive IT experience, including at least 2 years in a senior or lead technical role at an MSP or similar multi-client environment
• Deep expertise in Windows Server, Active Directory/Entra ID, Microsoft 365, virtualization, networking, and firewalls
• Proven architecture and project delivery track record
• Strong client-facing communication and leadership skills
• Relevant senior certifications are an asset