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Added 10 mins ago
IP
Group Lead, Electrical
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- Full-time
Prepare engineering studies, reports, calculations, and schematic designs for new electrical systems.
Added 10 mins ago
BR
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- Contract
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Added 10 mins ago
MC
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Senior QA Engineer III – Automation | Banking | API | Kafka | ETL (35729)
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Sensor Fusion Engineer
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- Full-time
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Added 12 mins ago
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Senior Embedded Software Designer
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Toronto, ON
- Full-time
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Added 12 mins ago
QC
Quality Assurance Engineer
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Toronto, ON · Greater Toronto Area, Canada
- Full-time
Own functional, regression, integration, system, and end-to-end testing for complex application and backend workflows.
Added 14 mins ago
AI Engineer Sr
Dayforce
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We are looking for an AI Engineer - Agentic Systems Evaluation to help define how we measure, test, and improve the quality of enterprise AI systems.
Added 59 mins ago
Senior Specialist, Software Engineering (Microsoft Dynamics 365 CRM)
CMHC - SCHL
Toronto, ON · Ottawa, ON · Montreal, QC
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Added 1 hour ago
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Artificial Intelligence Engineer
Levio
Canada
- Full-time
We embed engineers directly inside enterprise clients to find, build, and ship AI and agentic systems that reach production and stay there. A Forward Deployed Engineer runs discovery with…
Added 1 hour ago
A
Software Development Engineer In Test
Actalent
Waterloo, ON
- $40 to $50 CAD / hour
- Contract
This Software Development Engineer in Test (SDET) role focuses on designing, developing, and maintaining automated test scripts and tools in Python to validate new features for advanced…
Added 1 hour ago
A
Hardware Design Engineer (Open Interest)
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Ottawa, ON
- $45 to $65 CAD / hour
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Added 1 hour ago
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Systems Engineer (Open Interest)
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Ottawa, ON
- $45 to $65 CAD / hour
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Are you a Systems Engineer interested in exploring new opportunities?
Added 1 hour ago
EI
Product Engineer
ergoCentric Inc
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We are seeking a proactive, structured, and hands-on Product Engineer to join our engineering team. As our company scales, we are actively modernizing our engineering infrastructure,…
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Embedded Software / Python Test Engineer (Open Interest)
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Ottawa, ON
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Full Stack Engineer
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Mississauga, ON
- $70 to $80 CAD / hour
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…from the initial conversation through design, development, integration, testing, and…
Added 1 hour ago
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Senior Software Engineer – Quality Assurance
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Ottawa, ON
- Full-time
The Senior Software Engineer – Quality Assurance is responsible for applying advanced quality methodologies and tools to proactively identify, analyze, and eliminate potential defects…
Added 1 hour ago
Z
Senior Software Developer
Zynga
Toronto, ON
- $99,800 to $147,680 CAD / year
…desire to work in a team with dynamic strengths. The Senior Software Engineer will be working with a complementary team of software engineers to craft and maintain Zynga’s core Payments…
Added 2 hours ago
DS
Senior AI Engineer / Architect
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Vancouver, BC
- Full-time
maryWe are looking for a Senior AI Engineer to help architect and scale AI-powered product systems across our platform and engineering workflows. This role is best suited for someone with…
Added 2 hours ago
P
Electronic Hardware Engineer
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- Full-time
We are looking for a full-time Hardware Engineer who wants to take meaningful ownership of the electronics and PCB architecture of our medical device. The role is centered on hardware…
Added 2 hours ago
H
Senior Test & Validation Engineer
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Burnaby, BC
- Full-time
As a Senior Test and Validation Engineer at Humanoid, you will be responsible for bringing new hardware subsystems into a functional, controllable, measurable, and integration-ready state,…
Added 2 hours ago
RB
Lead Data Engineer
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- Full-time
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Added 3 hours ago
BS
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123Dentist

Infrastructure Architect

Toronto, ON, Canada

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

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Applications open in a new tab.

Job details

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

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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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