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Added 3 hours ago
AS
Sr. IT Support Engineer
Atellos Solutions
Engineer, BC
- Full-time
As a Senior Network Operations Center Engineer, you will play a pivotal role in leading the design and maintenance of our intricate system environment, catering to both internal operations…
Added 4 hours ago
P
Senior Associate -Cyber Security Forward Deployed(Bilingual FR/EN)
PwC
Calgary, AB · Vancouver, BC · Ottawa, ON · Toronto, ON
- Full-time
…in a dynamic, client-facing environment. You operate as the senior engineer on a delivery pod, mentor Associates, own technical workstreams end-to-end, and translate client ambiguity into…
Added 7 hours ago
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Devops Engineer
Actalent
Saskatoon, SK
- $55 to $65 CAD / hour
- Contract
…three scrum teams located in Ottawa and Calgary. As a DevOps Engineer, you will provide senior AWS expertise, facilitating the transition from on-premises infrastructure to AWS. This role…
Added 7 hours ago
A
Devops Engineer
Actalent
Montreal, QC
- $55 to $65 CAD / hour
- Contract
…three scrum teams located in Ottawa and Calgary. As a DevOps Engineer, you will provide senior AWS expertise, facilitating the transition from on-premises infrastructure to AWS. This role…
Added 7 hours ago
A
Devops Engineer
Actalent
Ottawa, ON
- $55 to $65 CAD / hour
- Contract
…three scrum teams located in Ottawa and Calgary. As a DevOps Engineer, you will provide senior AWS expertise, facilitating the transition from on-premises infrastructure to AWS. This role…
Added 7 hours ago
A
Senior Flight Software Engineer
Actalent
Brampton, ON
- $48 to $72 CAD / hour
- Contract
…experts who drive scale, innovation and speed to market. With a network of almost 20,000 consultants and 5,000 clients across the U.S., Canada, Asia and Europe, Actalent serves many of the…
Added 7 hours ago
A
Devops Engineer
Actalent
Calgary, AB
- $55 to $65 CAD / hour
- Contract
…three scrum teams located in Ottawa and Calgary. As a DevOps Engineer, you will provide senior AWS expertise, facilitating the transition from on-premises infrastructure to AWS. This role…
Added 10 hours ago
Infrastructure Operations Engineer
Cargill
Regina, SK
The Infrastructure Operations Engineer job maintains the smooth operation of the organization's infrastructure by performing moderately complex tasks, including monitoring systems,…
Added 11 hours ago
Infrastructure Operations Engineer
Cargill
Camrose, AB
The Infrastructure Operations Engineer job maintains the smooth operation of the organization's infrastructure by performing moderately complex tasks, including monitoring systems,…
Added 14 hours ago
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Engineer III
AlumaSafway
Bolton, ON
- Full-time
Provides backup support to senior engineer and engineer manager.
Added 14 hours ago
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Senior Execution Engineer
Enbridge
Regina, SK · Sherwood Park, AB · Calgary, AB
- Full-time
…excellence, innovation, and asset reliability. We are seeking a Senior Execution Engineer to join our…
Added 14 hours ago
A
Hydrogeologist
AECOM
Winnipeg, MB
- $115,000 to $180,000 CAD / year
- Full-time
AECOM is currently seeking a Senior Hydrogeologist to join our growing and collaborative team of geologists, hydrogeologists, groundwater modellers, geochemists and water management…
Added 15 hours ago
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Engineer III
BrandSafway
Bolton, ON
- Full-time
Provides backup support to senior engineer and engineer manager.
Added 17 hours ago
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Senior Specialist Engineer Bridge Design
CN
AB · Edmonton, AB
- Full-time
…design projects assigned to consultants for bridges across CN's network in accordance with Company policies and American Railway Engineering and Maintenance of Way Association (AREMA)…
Added 17 hours ago
R
SCADA Transmission Engineer
Raise
Burnaby, BC
- Full-time
The SCADA Transmission Engineer to join our clients team and play a key role in delivering complex, multi-discipline capital projects. In this role, your primary focus will be delivering…
Added 19 hours ago
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Senior Manager, Data Engineer, Applied AI Data Ingestion & Integration
BMO
Toronto, ON · FCP
- Full-time
…and operationalize data for AI and analytics workloads. As a Senior Manager within the (DII) Team, you will play a key role in enabling BMO's AI and advanced analytics capabilities by…
Added 19 hours ago
AI
Senior Site Reliability Engineer - AEM - Content Delivery Network
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
Toronto, ON
- Full-time
Build and run synthetic monitoring from outside the bank network, per template, per language, because internal-only monitoring cannot see the CDN, DNS and certificate failures this…
Added 21 hours ago
J
Senior Structural Engineer – Buildings
JLR
Ottawa, ON
- Full-time
As we continue to grow, we’ve opened roles in our Guelph office for talented and entrepreneurial Senior Structural Engineer to work alongside exceptional people supporting JLR’s Buildings…
Added 22 hours ago
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Senior Structural Engineer
EXP
Barrie, ON
- Full-time
Proven experience as a Senior Structural Engineer, demonstrating progressive responsibility and successful completion of complex structural projects.
Added 22 hours ago
E
Senior Structural Engineer
EXP
Sudbury, ON
- Full-time
Proven experience as a Senior Structural Engineer, demonstrating progressive responsibility and successful completion of complex structural projects.
Added 22 hours ago
E
Senior Structural Engineer
EXP
Temiskaming Shores, ON · New Liskeard, ON
- Full-time
Proven experience as a Senior Structural Engineer, demonstrating progressive responsibility and successful completion of complex structural projects.
Added 22 hours ago
VC
Adobe Experience Manager (AEM), SRE - CDN and Edge Delivery
VK CONSULTING SERVICES
Canada
- Full-time
We are seeking a hands-on Senior Site Reliability Engineer (SRE) with experience supporting Adobe Experience Manager (AEM), particularly Edge Delivery Services and Assets as a Cloud…
Added 22 hours ago
SS
Adobe Site Reliability Engineer (SRE) – CDN & Web Performance
Staffmax Staffing & Recruiting
Toronto, ON · Greater Toronto Area, Canada
- Full-time
We are seeking a highly skilled and proactive Adobe Site Reliability Engineer (SRE) specializing in CDN and Web Performance to join our client's dynamic team.
Added 22 hours ago
Staff Software Engineer
Lantern
Vancouver, BC
Lantern is the specialty care platform connecting people with the best care when they need it most. By curating a Network of Excellence comprised of the nation's top specialists for…
Added 23 hours ago
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Staff Software Engineer
Lantern
Vancouver, BC
- Full-time
Lantern is the specialty care platform connecting people with the best care when they need it most. By curating a Network of Excellence comprised of the nation's top specialists for…

Closed listing

123Dentist

Infrastructure Architect

Toronto, ON, Canada

$150,000 to $175,000 CAD / year · Full-time

This opening has closed.

The original listing is kept below for reference.

Find open jobs More jobs with this employer

About employer

Job details

Pay: $150,000 to $175,000 CAD / year
Job type: Full-time
Posting language: English
Posted: Sep 21, 2026

Similar jobs hiring now

Added 3 hours ago
Infrastructure architect - information technology (IT)
Titan power Ltd. · Markham, ON, Canada
$65 to $68 CAD / hour
Added 4 hours ago
Senior Associate -Cyber Security Forward Deployed(Bilingual FR/EN)
PwC · Toronto, ON, Canada
Added 6 hours ago
Senior Solution Architect
Manulife · Toronto, ON, Canada
Added 7 hours ago
Principal Engineer, Cyber Technology Operations SRE (Global Security)
RBC · Toronto, ON, Canada

Search current openings

Original job description

Archived listing. The details below describe a past opening.

Job Title: Infrastructure Architect

Team: Technology Services (Information Technology)

Reports To: Senior Infrastructure Engineering Manager

Location: Toronto, Ontario. (4 days in office, 1 day remote)

Employment Type: Permanent Full-Time

About 123Dentist

123Dentist is the largest majority Canadian-owned dental support organization, supporting a growing network of 400+ dental practices across the country. As we continue to expand, both organically and through acquisition, our IT team plays a central role in standardizing, securing, and scaling the technology that our clinics and corporate teams rely on every day.

About the Role

The Infrastructure Architect is the senior technical engineer for 123Dentist’s server, identity, cloud, and network infrastructure, combining deep hands-on design and engineering with escalation support and project delivery across a Microsoft-centric, multi-site environment.

The role is balanced across three areas: infrastructure transformation and project delivery (cloud migrations, identity modernization, endpoint-management standardization), Tier 2/3 escalation support for the most complex infrastructure, identity, cloud, and network issues, and mergers & acquisitions / practice integration, onboarding newly acquired practices into the 123Dentist environment. Operating with significant independence, you’ll act as a trusted technical authority, mentoring infrastructure engineers, service desk analysts, and operations team members while championing sound engineering standards, security, and reliability.

What You’ll Do

Serve as the Tier 2/3 escalation point for complex infrastructure, identity, cloud, and network incidents, driving them through to root-cause resolution
Diagnose and resolve advanced issues across Windows Server, Active Directory, Entra ID, Microsoft Intune, Microsoft 365, Azure, and the LAN/WAN and firewall layers
Lead major-incident response for infrastructure-impacting outages, coordinating with IT and business stakeholders and communicating status clearly to leadership
Mentor and coach Tier 1 and Tier 2 analysts, producing runbooks and technical documentation that build the team’s troubleshooting capability
Independently design, plan, and deliver infrastructure transformation initiatives across on-premises and cloud, including server consolidation, migrations, identity modernization, endpoint-management standardization, and network refreshes
Engineer and administer Microsoft Azure infrastructure, including landing zone design, virtual machines, networking, storage, backup, and cost optimization
Lead hybrid identity initiatives spanning on-premises Active Directory and Entra ID, including conditional access, MFA, and RBAC
Modernize and standardize endpoint management through Microsoft Intune, and automate provisioning and configuration using PowerShell and infrastructure-as-code
Lead the technical engineering workstream to integrate newly acquired practices into the 123Dentist environment, including identity, endpoints, network, and core systems
Partner with IT leadership and the Corporate Development / M&A team on due-diligence and integration planning, standardizing and securing clinic infrastructure as new sites join the network

What You Bring

Bachelor’s degree in Information Technology, Computer Science, or a related field, or equivalent hands-on experience
7–8+ years in systems/infrastructure engineering or senior systems administration, including hands-on Tier 2/3 escalation in a Microsoft-centric enterprise environment
Demonstrated experience independently leading infrastructure transformation projects spanning multiple teams or departments (cloud adoption/migrations, identity or endpoint modernization, network refreshes)
Experience supporting a multi-site, distributed environment (healthcare, DSO, retail, or similar) is an asset; experience with M&A / site integration is a strong asset
Expert-level Windows Server administration and deep hybrid identity expertise (on-premises Active Directory and Entra ID, conditional access, MFA, RBAC)
Strong Microsoft Azure engineering skills, including IaaS, virtual networking, storage, backup, security, and cost management
Experience with Microsoft Intune / modern endpoint management and LAN/WAN and network engineering (routing, VLANs, VPN, DNS/DHCP, firewalls)
PowerShell scripting and automation experience, with working familiarity in endpoint security, backup/DR, and ITSM tooling
Microsoft certifications (e.g., AZ-104/AZ-305, MD-102, SC-300) or equivalent networking/security certifications (CCNA, Security+, ITIL) are an asset
Strong sense of ownership, excellent analytical and problem-solving abilities, and a collaborative approach to mentoring across teams

Why Join 123Dentist?

Play a central, high-visibility role in modernizing IT infrastructure for a fast-growing national organization
Operate with real autonomy as a trusted senior technical authority
Work across a modern, cutting-edge cloud, identity, and endpoint technology stack
Be part of a collaborative team that values mentorship and engineering excellence

About employer

More about this job

Responsibilities

The Infrastructure Architect will lead the design, engineering, and transformation of server, identity, cloud, and network infrastructure across a multi-site environment. They will also serve as a Tier 2/3 escalation point for complex technical issues and manage the integration of newly acquired dental practices.

Requirements

Candidates must have 7-8+ years of experience in systems or infrastructure engineering within a Microsoft-centric enterprise environment. A bachelor's degree in a related field is required, along with deep expertise in Azure, hybrid identity, and modern endpoint management.

Skills

Infrastructure Architecture
Windows Server
Active Directory
Entra ID
Microsoft Azure
Microsoft Intune
PowerShell
Network Engineering
Cloud Migration
Identity Management
Endpoint Management
Firewall Administration
Project Delivery
Technical Mentorship
Incident Response
System Administration

Visa sponsorship

Not detected in the job text

Keywords

Infrastructure Architect
Windows Server
Active Directory
Entra ID
Microsoft Intune
Microsoft 365
Azure
LAN/WAN
Firewall
PowerShell
Infrastructure-as-code
Hybrid Identity
MFA
RBAC
Conditional Access
AZ-104
AZ-305
MD-102
SC-300
CCNA
Security+
ITIL
Cloud Migration
Endpoint Management
Mergers & Acquisitions
System Administration
Technical Documentation
Runbooks
Disaster Recovery
ITSM

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