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Added 1 hour ago
Senior AI Engineer
Sun Life
Toronto, ON · Waterloo, ON · Sun Life Toronto Atria
Full-time
Corporate IT is seeking an experienced Senior AI Engineer to design, develop, deploy, and support enterprise-grade Artificial Intelligence, Machine Learning, and Generative AI solutions on…
Added 3 hours ago
Senior Application Security Engineer
Nutrien
Saskatoon, SK
Full-time
The Senior Application Security Engineer is a senior technical role responsible for advancing security across the software development lifecycle (SDLC). Working closely with application…
Added 3 hours ago
Senior Application Security Engineer
Nutrien
Calgary, AB
Full-time
The Senior Application Security Engineer is a senior technical role responsible for advancing security across the software development lifecycle (SDLC). Working closely with application…
Added 3 hours ago
Senior Technical Program Manager
CNN
Ottawa, ON · Kanata, ON
Full-time
Evaluate system architecture, service boundaries, API contracts, event flows, data models, cloud infrastructure, security constraints, reliability concerns, and integration risks well…
Added 4 hours ago
Development Team Lead
UniSysTech Consulting
Toronto, ON · Greater Toronto Area, Canada
Other
Lead Experience: 3+ years of experience in a Technical Lead, Engineering Lead, or Senior/Principal Engineer role mentoring development teams and guiding architectural decisions.
Added 4 hours ago
Senior Product Designer - Okta Privileged Access
Okta
Toronto, ON
We are looking for a talented Senior Product Designer who can help shape Okta’s expansive product portfolio by bringing exceptional craft and fresh perspective to the world of identity and…
Added 5 hours ago
Senior Azure Platform / DevOps Engineer
Makai Labs
Canada
Full-time
Small senior teams, real ownership. We'd rather have one engineer who understands a platform top to bottom than several who each own a slice.
Added 5 hours ago
Application Development - Senior IAM Systems Engineer - Advanced
Raise
Toronto, ON
Full-time
We at Raise are hiring a Application Development - Senior IAM Systems Engineer - Advanced for one of our top clients. After establishing themselves as an industry leader, they’re now…
Added 5 hours ago
Senior Data Platform Engineer - Zonda - Toronto, Ontario
CoStar
Toronto, ON
$140,000 to $170,000 CAD / year
Full-time
We are looking for a Senior Data Platform Engineer to design, automate, and operate the shared capabilities that underpin our enterprise data platform.
Added 5 hours ago
Principal Cloud & AI Apps Solution Engineer
Microsoft
Toronto, ON
Full-time
This is a senior individual contributor technical sales role with primary depth in AI & Apps and a broad leadership mandate across the Microsoft platform. You will lead strategic technical…
Added 6 hours ago
Senior Director, Data Center Facilities Development
Oracle
Canada
$193,600 to $414,400 USD / year
Full-time
The Oracle Cloud Infrastructure (OCI) Data Center Development organization leads the planning, design, and delivery of the next generation of Oracle’s global data center portfolio. We are…
Added 7 hours ago
Staff Software Engineer, Core Applications
Solink
Remote, Canada
$138,445 to $173,056 USD / year
Full-time · Remote
Our cloud-based platform integrates seamlessly with your existing cameras and systems, turning them into intelligent sensors that detect and interpret key moments. This empowers teams to…
Added 7 hours ago
Kubernetes Reliability Engineer
Roche
Mississauga, ON · Canada Pharma Campus
Full-time
The CaaS IT Infrastructure Engineer is a highly skilled expert responsible for solving complex business problems using advanced cloud native technologies. The engineer will build and…
Added 9 hours ago
Kubernetes Reliability Engineer
Roche
Mississauga, ON
Full-time
The CaaS IT Infrastructure Engineer is a highly skilled expert responsible for solving complex business problems using advanced cloud native technologies. The engineer will build and…
Added 9 hours ago
Senior Data Integration Engineer
Connor, Clark & Lunn Financial Group Ltd.
Vancouver, BC
Interested in joining one of Canada's top performing asset managers? We are looking for a Senior Data Integration Engineer for an existing vacancy in our IT department, Connor, Clark & Lunn…
Added 9 hours ago
Senior Data Integration Engineer
Connor, Clark & Lunn Financial Group Ltd.
Toronto, ON
Interested in joining one of Canada's top performing asset managers? We are looking for a Senior Data Integration Engineer for an existing vacancy in our IT department, Connor, Clark & Lunn…
Added 9 hours ago
Senior Salesforce Engineer
Canadian Cancer Society
Toronto, ON · Ottawa, ON · Montreal, QC · Quebec, QC · Prince George, BC · Vancouver, BC · Kelowna, BC · Halifax, NS · Calgary, AB
Full-time
We are seeking a hands-on Salesforce Platform and AI Engineer to design, build, and scale secure, data-driven solutions that advance CCS’s mission. This role combines Salesforce…
Added 9 hours ago
Full Stack Engineer
ProxyLink
Toronto, ON
$100 to $105 USD / hour
Contract
Proxylink is working with a government client seeking an experienced Senior Full-Stack Developer to support the development, modernization, deployment, and maintenance of enterprise…
Added 9 hours ago
AI ENGINEER
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Huron Shores, ON
Contract
Mid-level band: 6–9 years of relevant experience; senior band: 10–15 years
Added 9 hours ago
Senior Software Engineer (Sanctions Service & AI Inference)
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Vancouver, BC
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Senior Software Engineer (Sanctions Service & AI Inference)Who is Mastercard?
Added 10 hours ago
Senior Cloud Security Engineer (Golang & HashiCorp Vault)
J&M Group
Montreal, QC
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We are hiring for a Senior Cloud Security Engineer (Golang & HashiCorp Vault). This role focuses on building secure, scalable cloud infrastructure and security solutions using Golang,…
Added 10 hours ago
Senior Full Stack Engineer / Toronto, ON (Onsite) - FTE
AceStack
Toronto, ON
Part-time
We are seeking a Senior Full Stack Engineer with strong hands-on experience in Java, Spring Boot, REST APIs, microservices, automated testing, and modern software engineering practices. The…
Added 10 hours ago
Machine Learning Operations Engineer/Senior
Wawanesa Insurance
Toronto, ON · AB · Winnipeg, MB · Ottawa, ON · Kitchener, ON · Calgary, AB · Edmonton, AB (Hybrid), AB · North York - Toronto, ON (Hybr, ON
The Machine Learning Operations Engineer/Senior is responsible for the design, development, deployment, monitoring, and operationalization of machine learning and AI solutions. The engineer…
Added 10 hours ago
Senior Software Developer, AI Solutions
System Soft Technologies
Quebec, QC
Full-time
client is looking for a senior software engineer - a builder first - for our AI Solutions team. This is a hands-on development role, not machine-learning research: you’ll build production…
Added 10 hours ago
Senior Security Engineer - Cloud Security
PagerDuty
Toronto, ON
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Senior Security Engineer - Cloud Security (Platform Engineering, Kubernetes & Identity)

Thomson Reuters

Lead IAM Engineer

Toronto, ON, Canada
Canada, Toronto, Ontario, Canada

Job type: Full-time
Apply by: Oct 24, 2026
Experience: 10+ years of hands-on experience in engineering and administration of Microsoft Active Directory in large enterprise environments.
Posting language: English
Posted: Sep 24, 2026

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Original job description

We are seeking a highly skilled and experienced Lead IAM Engineer to join our team. This role will be responsible for the design, implementation, administration, optimization, and support of complex enterprise identity infrastructure across both on-premises and cloud-integrated environments.

The ideal candidate will have deep technical expertise in Microsoft Active Directory Domain Services (AD DS), Microsoft Entra ID, Entra ID Connect, identity federation, and multi-factor authentication (MFA). This individual will serve as a senior technical resource for identity architecture, security hardening, operational excellence, modernization initiatives, and escalated engineering support.

This is a critical role for someone who thrives in a highly available, security-focused enterprise environment and has a strong track record of managing identity platforms at scale.

About the role:

Design, implement, administer, and support enterprise Active Directory environments across multiple on-premises domains and forests.
Lead the design and operational management of identity federation services, including ADFS and Entra ID Federation.
Administer and support Entra ID and hybrid identity solutions.
Manage and maintain Entra ID Connect, including sync configuration, health monitoring, and troubleshooting.
Support and enhance MFA solutions, Conditional Access integrations, and secure authentication workflows.
Develop scalable, secure, and resilient identity architecture solutions to support business growth, mergers, integrations, and modernization initiatives.
Evaluate current-state identity platforms and recommend improvements.
Design and implement hybrid identity and federation solutions for enterprise applications and services.
Contribute to roadmap planning for IAM and directory services modernization.
Implement identity security best practices for Active Directory and hybrid identity environments.
Strengthen AD security posture through hardening, least privilege, privileged access controls, and secure administrative models.
Partner with other IAM and security teams to support compliance, audit readiness, vulnerability remediation, and incident response efforts.
Review and improve controls related to authentication, access governance and privileged access
Serve as a senior escalation point for complex directory services, federation, and authentication issues.
Troubleshoot and resolve issues involving: AD replication, Kerberos/NTLM authentication, DNS, Group Policy, ADFS claims and trusts, Entra ID Connect synchronization, Federation and MFA failures
Perform root cause analysis and implement long-term corrective actions.
Ensure high availability and disaster recovery readiness for identity systems.
Develop and maintain automation for identity administration, provisioning support, health checks, monitoring, and reporting using PowerShell and other relevant tools.
Create and maintain technical documentation, engineering standards, runbooks, and design artifacts.
Support operational maturity through process improvement and standardization.
Work closely with the architecture teams on enterprise identity initiatives.
Provide technical guidance to junior engineers and operations team.
Participate in project planning, implementation, and change management activities.
Support acquisitions, divestitures, or business transformations involving identity integration and migration.

About You

Bachelor’s degree in Computer Science, Information Technology, Cybersecurity, or related field, or equivalent work experience.
10+ years of hands-on experience in engineering and administration of Microsoft Active Directory in large enterprise environments.
Strong experience with multi-domain and multi-forest AD environments, DNS, Group Policy, replication, trusts, and authentication protocols, Identity synchronization and federation troubleshooting, PowerShell scripting and automation
Experience designing and implementing secure identity solutions in enterprise environments.
Strong problem-solving, troubleshooting, and root cause analysis skills.
Familiarity with security frameworks and best practices for identity infrastructure.
Excellent written and verbal communication skills.
Experience with:
- Enterprise IAM strategy and modernization
- Mergers, acquisitions, divestitures, or domain consolidations
- Conditional Access and Passwordless authentication
- Privileged Access Management
- Identity governance and access lifecycle processes

What Success Looks Like in This Role

Active Directory and hybrid identity services are well-architected and operationally mature.
Authentication, federation, and synchronization issues are proactively identified and resolved.
Security risks are reduced through improved configuration, hardening, and access controls.
Automation, documentation, and standardization improve team efficiency and reliability.
Identity platforms are secure, stable, and highly available.
The engineer serves as a trusted technical expert and strategic partner across IAM and infrastructure initiatives.

Replacement: This position is open due to an existing vacancy to support our evolving business needs.

What’s in it For You?

Hybrid Work Model: We’ve adopted a flexible hybrid working environment for our office-based roles while delivering a seamless experience that is digitally and physically connected.
Flexibility & Work-Life Balance: Flex My Way is a set of supportive workplace policies designed to help manage personal and professional responsibilities, whether caring for family, giving back to the community, or finding time to refresh and reset. This builds upon our flexible work arrangements, including work from anywhere for up to 8 weeks per year, empowering employees to achieve a better work-life balance.
Career Development and Growth: By fostering a culture of continuous learning and skill development, we prepare our talent to tackle tomorrow’s challenges and deliver real-world solutions. Our Grow My Way programming and skills-first approach ensures you have the tools and knowledge to grow, lead, and thrive in an AI-enabled future.
Industry Competitive Benefits: We offer comprehensive benefit plans to include flexible vacation, two company-wide Mental Health Days off, access to the Headspace app, retirement savings, tuition reimbursement, employee incentive programs, and resources for mental, physical, and financial wellbeing.
Culture: Globally recognized, award-winning reputation for inclusion and belonging, flexibility, work-life balance, and more. We live by our values: Obsess over our Customers, Compete to Win, Challenge (Y)our Thinking, Act Fast / Learn Fast, and Stronger Together.
Social Impact: Make an impact in your community with our Social Impact Institute. We offer employees two paid volunteer days off annually and opportunities to get involved with pro-bono consulting projects and Environmental, Social, and Governance (ESG) initiatives.
Making a Real-World Impact: We are one of the few companies globally that helps its customers pursue justice, truth, and transparency. Together, with the professionals and institutions we serve, we help uphold the rule of law, turn the wheels of commerce, catch bad actors, report the facts, and provide trusted, unbiased information to people all over the world.

Our use of AI within the recruitment process Thomson Reuters utilizes Artificial Intelligence (AI) to support parts of our global recruitment process. Unless you opt-out, our AI system will assess the information provided by you and compare it to the requirements listed for the role, and present the result to our recruitment personnel for further review. The AI system acts as a supporting tool, but there is always a human making the decision if you will be considered for the role

Thomson Reuters complies with local laws that require upfront disclosure of the expected pay range for a position. The base compensation range varies across locations.

For Ontario, Canada, the base compensation range for this role is $140,600 CAD - $190,600 CAD.

Base pay is positioned within the range based on several factors including an individual’s knowledge, skills and experience with consideration given to internal equity. Base pay is one part of a comprehensive Total Reward program which also includes flexible and supportive benefits and other wellbeing programs.
This role may also be eligible for an Annual Bonus based on a combination of enterprise and individual performance.


About Us

Thomson Reuters informs the way forward by bringing together the trusted content and technology that people and organizations need to make the right decisions. We serve professionals across legal, tax, accounting, compliance, government, and media. Our products combine highly specialized software and insights to empower professionals with the data, intelligence, and solutions needed to make informed decisions, and to help institutions in their pursuit of justice, truth, and transparency. Reuters, part of Thomson Reuters, is a world leading provider of trusted journalism and news.

We are powered by the talents of 26,000 employees across more than 70 countries, where everyone has a chance to contribute and grow professionally in flexible work environments. At a time when objectivity, accuracy, fairness, and transparency are under attack, we consider it our duty to pursue them. Sound exciting? Join us and help shape the industries that move society forward.

As a global business, we rely on the unique backgrounds, perspectives, and experiences of all employees to deliver on our business goals. To ensure we can do that, we seek talented, qualified employees in all our operations around the world regardless of race, color, sex/gender, including pregnancy, gender identity and expression, national origin, religion, sexual orientation, disability, age, marital status, citizen status, veteran status, or any other protected classification under applicable law. Thomson Reuters is proud to be an Equal Employment Opportunity Employer providing a drug-free workplace.

We also make reasonable accommodations for qualified individuals with disabilities and for sincerely held religious beliefs in accordance with applicable law. More information on requesting an accommodation here.

Learn more on how to protect yourself from fraudulent job postings here.

More information about Thomson Reuters can be found on thomsonreuters.com

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More about this job

Responsibilities

The Lead IAM Engineer will design, implement, and manage complex enterprise identity infrastructure across on-premises and cloud environments. This role serves as a senior technical resource for identity architecture, security hardening, and operational support for directory services and federation.

Requirements

Candidates must have 10+ years of hands-on experience in Microsoft Active Directory engineering within large enterprise environments. Strong expertise in identity synchronization, federation, PowerShell scripting, and security best practices is required.

Skills

Active Directory
Microsoft Entra ID
Identity Federation
Multi-factor authentication
PowerShell
Identity architecture
Security hardening
Hybrid identity
ADFS
Entra ID Connect
Conditional Access
Privileged Access Management
Troubleshooting
Root cause analysis
Disaster recovery
Automation

Benefits

Flexible vacation
Mental health days
Headspace app access
Retirement savings
Tuition reimbursement
Employee incentive programs
Volunteer days
Hybrid work model

Visa sponsorship

Not detected in the job text

Keywords

Active Directory
Microsoft Entra ID
Identity and Access Management
IAM
ADFS
Entra ID Connect
Federation
MFA
Conditional Access
PowerShell
Hybrid Identity
DNS
Group Policy
Kerberos
NTLM
Privileged Access Management
Cybersecurity
Identity Governance
Automation
Disaster Recovery
Cloud Infrastructure
Enterprise Architecture
Security Hardening
Root Cause Analysis
Identity Lifecycle
Compliance
Audit Readiness
Infrastructure
System Administration
Technical Documentation

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