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Added 14 mins ago
M
Senior Manager, Commercial Management – Ontario Line
Metrolinx
Canada
- Full-time
…ensure progression of projects and programs into operational…
Added 29 mins ago
Engineer In Training-TS001
City of London
London, ON
Under the direct supervision of an Engineer within the Service Area:
Added 29 mins ago
BS
SERVICE TECHNICIAN - BRITISH COLUMBIA
BVGlazing Systems
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- $65,000 to $75,000 CAD / year
- Full-time
Coordinate work plans with the Service Manager and Field Management.
Added 29 mins ago
AM
Mechanical Project Engineer
Arrow Machine And Fabrication Group
Stratford, ON
- Full-time
…innovative design, quality craftsmanship, and exceptional customer…
Added 29 mins ago
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Ingénieur(e) d'exécution de projets/Execution Project Engineer
Veolia | Water Tech
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- Full-time
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Added 44 mins ago
Bilingual Senior Specialist, Software Engineering (CI/CD & Automation Engineering)
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Contribute to the development of paved roads and self-service capabilities for engineering teams.
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Senior Application Security Engineer
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- Full-time
The Senior Application Security Engineer is responsible for helping secure the Paymentus SaaS platform by partnering directly with software engineering, product, cloud infrastructure,…
Added 44 mins ago
A
Water/Wastewater Engineer
AECOM
Burnaby, BC
- $90,000 to $130,000 CAD / year
- Full-time
As a part of our continued growth, AECOM is actively seeking a creative, highly talented Water/Wastewater Engineer to join our treatment plants team. The candidate for this position will…
Added 59 mins ago
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Technical Sales Intern- Mississauga
Captiveaire - Region 114 Western PA
Mississauga, ON
- Volunteer
NOTE: Excellent performance may lead to full-time employment opportunities in sales, field service or other engineering roles upon graduation.
Added 59 mins ago
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Technical Sales and Field Service Engineer
Captiveaire - Region 114 Western PA
Saskatoon, SK
- Full-time
Seeking a driven and motivated engineer to join our sales team focusing on growing business with existing customers and developing new business. This position will involve applications…
Added 59 mins ago
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Electronics Engineer
Quectel
Richmond, BC
- Full-time
The electronic engineer is a core interface for customer hardware support from the R&D team. This role independently performs customer design reviews, customer issue debugging, and customer…
Added 59 mins ago
Q
Electronic Application Engineer
Quectel
Richmond, BC
- Full-time
Minimum high school degree, preferred Bachelor’s degree in computer engineering, Electrical Engineering, Computer Science, or a related field.
Added 1 hour ago
T
Senior Python Test Automation Engineer
Telesat
Ottawa, ON
- Full-time
…engineering excellence, reliability and industry-leading customer service, Telesat has grown to be one of the largest and most successful global satellite…
Added 1 hour ago
A
Water/Wastewater Engineer
AECOM
Burnaby, BC
- $90,000 to $130,000 CAD / year
- Full-time
As a part of our continued growth, AECOM is actively seeking a creative, highly talented Water/Wastewater Engineer to join our treatment plants team. The candidate for this position will…
Added 1 hour ago
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Senior Data Engineer
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Montreal, QC
- Full-time
A bachelor’s or master’s degree in a related field and 3 to 5 years of relevant experience
Added 1 hour ago
Assistant Building Operator, Toronto
Great Canadian Entertainment
Toronto, ON
Review and complete daily entries into the engineer's log.
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Contract - Assistant Building Operator, Toronto
Great Canadian Entertainment
Toronto, ON
Review and complete daily entries into the engineer's log.
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Civil / Environmental Engineer
AECOM
Burnaby, BC
- $75,000 to $105,000 CAD / year
- Full-time
AECOM is actively seeking an Civil/Environmental Engineer to join our growing Western Canada Environment team. The right candidate can work locally from our Burnaby BC office and AECOM can…
Added 1 hour ago
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Quality Engineer
Fresenius Medical Care
Richmond Hill, ON
- Full-time
Supports FME Canada’s mission, vision, core values and customer service philosophy. Adheres to the FME Canada Compliance Program, including following all regulatory and division/company…
Added 1 hour ago
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Forward Deployed AI Engineer
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Montreal, QC · Greater Montreal Metropolitan Area
- $140,000 to $180,000 CAD / year
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As a Forward Deployed Engineer, you act as the technical lead and primary engineering contact for retail clients:
Added 1 hour ago
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Engineer, Field Service
J.D. Irving, Limited
Halifax, NS
- Full-time
Join our Field Service Engineering team as an Engineer, Field Service - Electrical, where you'll play a key role in supporting shipbuilding production through hands-on engineering analysis…
Added 1 hour ago
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Professionnel en Systèmes Électriques - Gestion des requis et V&V / Electrical Systems Professional - Requirement management and V&V
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- Full-time
…incluant l’Ingénierie en Chef, Programmes, Méthodes, Production, Service à la clientèle, Qualité,…
Added 2 hours ago
A
Distribution Engineer / Senior Engineer
ATCO
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- Full-time
We are recruiting for opportunities at both the Engineer and Senior Engineer levels, and candidates may be considered for placement at either level based on their qualifications,…
Added 2 hours ago
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IT Advisor - Cloud and Application Security Advisor
BC Hydro
Vancouver, BC
- $109,700 to $138,700 CAD / year
- Full-time
University or College degree in Computer Science, Information Technology or related field, or a combination of education and experience may be considered.
Added 2 hours ago
HB
Platform Engineer - $250,000+ bonus! (Fintech)
Hunter Bond
Montreal, QC
- Full-time
…improving operational efficiency, building CI/CD pipelines and self-service workflows, and making life better for developers and…

123Dentist

Infrastructure Architect

Toronto, ON, Canada

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

Apply About employer

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Job details

Pay: $150,000 to $175,000 CAD / year
Job type: Full-time
Apply by: Nov 17, 2026
Posting language: English
Posted: Nov 3, 2026

Original job description

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

Apply About employer

More about this job

Responsibilities

Design, engineer, and deliver infrastructure transformation across on-premises and cloud environments, including Azure, hybrid identity, endpoint management, and network modernization. Resolve complex Tier 2/3 incidents, lead major-incident response, mentor technical teams, and integrate newly acquired practices into the organization’s IT environment.

Requirements

Requires a bachelor’s degree in IT, computer science, or a related field, or equivalent hands-on experience, and 7–8+ years of infrastructure or systems engineering experience. Candidates should bring expert Windows Server and hybrid identity skills, strong Azure and Intune experience, network engineering knowledge, PowerShell automation capability, and experience leading infrastructure projects; M&A integration experience and relevant certifications are assets.

Skills

Windows Server Administration
Active Directory
Microsoft Entra ID
Microsoft Azure
Microsoft Intune
Microsoft 365
Hybrid Identity
Conditional Access
Multi-Factor Authentication
Role-Based Access Control
PowerShell
Infrastructure As Code
Network Engineering
Incident Response
Cloud Migration
Mergers And Acquisitions Integration

Visa sponsorship

Not detected in the job text

Keywords

Windows Server
Active Directory
Microsoft Entra ID
Microsoft Intune
Microsoft 365
Microsoft Azure
PowerShell
Infrastructure As Code
Hybrid Identity
Conditional Access
Multi-Factor Authentication
Role-Based Access Control
Azure Landing Zones
Virtual Machines
Virtual Networking
Cloud Migration
Endpoint Management
LAN/WAN
Routing
VLANs
VPN
DNS/DHCP
Firewalls
Backup And Disaster Recovery
IT Service Management
Infrastructure Transformation
Major-Incident Response
Mergers And Acquisitions
AZ-104
AZ-305

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