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Added 19 mins ago
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Senior Systems Engineer
illumin
Toronto, ON · Greater Toronto Area, Canada
- Full-time
We are hiring a Senior Systems Engineer to join our Infrastructure & Operations team. This is a senior, hands-on infrastructure role focused on Linux systems, virtualization, physical and…
Added 22 mins ago
RT
Conseiller(ère) sénior, Gestion des données de Foundry | Senior Advisor, Foundry Data Management
Rio Tinto
Montreal, QC
- Full-time
Nous recherchons un(e) Conseiller(ère) sénior, Gestion des données de Foundry pour soutenir l’équipe Actifs numériques des Affaires commerciales dans la conception, l’amélioration et la…
Added 1 hour ago
Senior Manager, Salesforce Engineering
Scotiabank
Toronto, ON
We’re looking for a Senior Manager, Salesforce Engineering to lead the strategy, delivery, and evolution of our Salesforce platform across multiple business lines. You’ll own the…
Added 1 hour ago
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Senior Backend Developer
Modaxo
Montreal, QC · Canada - Montreal, QC
- Full-time
As a Senior, the selected candidate will also act as an advisor and mentor for less experienced team members and will actively participate in technology choices, architecture, and…
Added 1 hour ago
ES
Senior Program Manager – AI Security Research
Epsilon Solutions Ltd.
Toronto, ON
- Contract
We are seeking a Senior Technical Program Manager – AI Security Research to lead and coordinate highly technical cybersecurity research and engineering programs. The ideal candidate will…
Added 1 hour ago
P
Senior Product Designer, Customer Growth
Priceline
Toronto, ON
- Full-time
…Priceline, real-world user data guides our design choices, and AI is in every part of our workflow, so you'll get from early concept to testable experience faster than ever. That leaves…
Added 2 hours ago
R&
Product Manager (SSO)
Robertson & Company Ltd.
Toronto, ON
- Contract
Define integration and rewards architecture patterns: Partner with Engineering, Architecture, Security, and Data to establish reusable patterns for SSO, identity federation, and reward…
Added 2 hours ago
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Senior Cloud DevOps Engineer
Qfin
Toronto, ON · North York, ON
- Full-time
We are looking for a Senior Cloud DevOps (SRE) Engineer to design, implement, operate, and continuously improve our cloud infrastructure and DevOps capabilities on AWS.
Added 2 hours ago
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Senior DevOps Engineer - Healix
Deloitte
Toronto, ON
- Full-time
Collaboration: Work with security, architecture, and engineering leads to implement least-privilege access, encryption, backup/DR posture, and audit-friendly operations - including how…
Added 2 hours ago
P
Senior Product Designer, Customer Growth
Priceline
Toronto, ON
- Full-time
…Priceline, real-world user data guides our design choices, and AI is in every part of our workflow, so you'll get from early concept to testable experience faster than ever. That leaves…
Added 3 hours ago
MI
Senior Manager, Data Analytics & Business Intelligence
Medline Industries, LP
Toronto, ON · Mississauga, ON · Spectrum
- Full-time
This role will establish the strategy, roadmap, governance, and operating model for a secure and scalable Microsoft Fabric-based data platform. The Senior Manager will lead a…
Added 3 hours ago
Bilingual Senior Manager, Business Solutions Engineering
CMHC - SCHL
Toronto, ON · Ottawa, ON · Montreal, QC
Join our dynamic Business Solutions Engineering Team, in the Bilingual Senior Manager, Business Solutions Engineering position. In this leadership role, you’ll guide a team of talented…
Added 3 hours ago
MC
Senior Manager, Data Analytics & Business Intelligence
Medline Canada, Corporation
Mississauga, ON
- Full-time
This role will establish the strategy, roadmap, governance, and operating model for a secure and scalable Microsoft Fabric-based data platform. The Senior Manager will lead a…
Added 4 hours ago
IW
Senior Manager, Solution Architect
IG Wealth Management
ON · Ontario, Canada
- Full-time
The Sr Manager, Architect is accountable for end-to-end solution architecture for major initiatives. Translates business and application needs into architecture patterns, systems…
Added 4 hours ago
IW
Senior Manager, Solution Architect
IG Wealth Management
MB · Manitoba, Canada
- Full-time
The Sr Manager, Architect is accountable for end-to-end solution architecture for major initiatives. Translates business and application needs into architecture patterns, systems…
Added 4 hours ago
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Engineering Manager
Manulife
Waterloo, ON
- Full-time
As an Engineering Manager, you will lead and develop a team of engineers responsible for delivering secure, reliable, and user-centered technology solutions that support business objectives…
Added 5 hours ago
CI
Senior Microsoft 365 & Unified Communications Engineer
Compugen Inc
Surrey, BC
- Full-time
About Compugen Compugen is Canada's largest privately-owned Technology Ally. To innovate industries, transform businesses, connect communities, and drive meaningful change, we must think…
Added 5 hours ago
CE
Senior Coordinator, OT SCADA
Cenovus Energy
Calgary, AB
- Full-time
Reporting to the Manager OT Operations, the Senior Coordinator, OT SCADA provides senior-level technical coordination, governance, and multi-site accountability for SCADA systems and…
Added 5 hours ago
CC
Senior Manager, Salesforce Platform Architecture & Development
Canadian Cancer Society
Toronto, ON · Montreal, QC · Quebec, QC · Prince George, BC · Vancouver, BC · Kelowna, BC · Halifax, NS · St. John's, NL · Calgary, AB
- Full-time
We are seeking a Senior Manager, Solution and Platform Architecture to lead the design, evolution, and operational excellence of our enterprise Salesforce ecosystem. This is a high-impact…
Added 6 hours ago
ES
Senior Program Manager
Epsilon Solutions Ltd.
Toronto, ON
- Contract
Security Technical Program Manager to lead and coordinate cybersecurity research, engineering, product evaluation, and emerging-technology initiatives from research hypothesis through…
Added 6 hours ago
T
Software Engineer I - Development and Quality Engineering
TD
Toronto, ON
- Full-time
The Risk Technology team within the Finance and Risk Platform group is a dynamic, high-performing, and fast-paced team supporting enterprise credit risk applications used for the Bank’s…
Added 6 hours ago
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Senior Implementation Consultant
Nakisa
Montreal, QC
- Full-time
Bridging the gap between complex enterprise technology and real business outcomes, you’ll lead clients from requirements through go-live, serving as their trusted senior technical advisor…
Added 6 hours ago
MI
Senior Manager, Architect
Mackenzie Investments
Toronto, ON · Greater Toronto Area, Canada
- Full-time
The Senior Manager, Architect is accountable for end-to-end solution architecture for major initiatives. Translates business and application needs into architecture patterns, systems…
Added 7 hours ago
MF
Senior Manager, Solution Architect
Mackenzie Financial Corporation
Toronto, ON · Greater Toronto Area, ON
- Other
The Sr Manager, Architect is accountable for end-to-end solution architecture for major initiatives. Translates business and application needs into architecture patterns, systems…
Added 7 hours ago
A
Senior Software Developer, Cloud and Platform
Archipelago
Victoria, BC
- Full-time
We are looking to hire a Senior Software Developer, Cloud & Platform in our Victoria office. Healthy fisheries depend on good data, and good data depends on the platform you would be…

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

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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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