Senior Microsoft 365 Engineer

You are as unique as your background, experience and point of view. Here, you’ll be encouraged, empowered and challenged to be your best self. You'll work with dynamic colleagues - experts in their fields - who are eager to share their knowledge with you. Your leaders will inspire and help you reach your potential and soar to new heights. Every day, you'll have new and exciting opportunities to make life brighter for our Clients - who are at the heart of everything we do. At Sun Life, we're driven by our Purpose: helping our Clients achieve lifetime financial security and live healthier lives. Our values shape how we work: caring, authentic, bold, inspiring, and impactful. When you join Sun Life, you'll work with passionate colleagues and empowering leaders who support your growth and celebrate your contributions, so you can make a meaningful difference in our Clients' lives. Discover how you can make a difference in the lives of individuals, families and communities around the world.

Job Description

As a Senior Microsoft 365 Engineer, you will solve complex Microsoft 365 engineering challenges and lead technical initiatives from requirements and design through implementation and operational transition. You will work across Microsoft 365, Microsoft Teams, enterprise browsers, endpoint technologies, automation and security while partnering with technology, cybersecurity, architecture, operations, vendors and business teams.

What will you do?

• Lead technical engineering initiatives from requirements and solution design through implementation, testing and operational transition, managing dependencies, risks and deliverables.
• Engineer and support Microsoft 365 and Microsoft Teams services, applications, integrations and collaboration capabilities, including complex Level 3 issues.
• Design scripts, API integrations, automated workflows, monitoring and deployment solutions using PowerShell, Microsoft Graph, REST APIs and related automation technologies.
• Engineer and govern enterprise browsers and endpoints, including Microsoft Edge, Google Chrome, Microsoft Intune, Group Policy, extensions, configurations, security controls and lifecycle management.
• Evaluate technologies and integrations for technical feasibility, security, supportability and business value, and support security remediation, audit and technology-control activities.
• Develop technical designs, implementation plans, testing approaches and documentation, and communicate recommendations, risks and decisions to technical and business stakeholders.

What do you need to succeed?

• Experience engineering and supporting Microsoft 365 and Microsoft Teams services in a medium-to-large enterprise environment.
• Demonstrated experience leading technical projects from requirements and planning through production implementation and operational transition.
• Ability to troubleshoot complex enterprise technologies, complete root-cause analysis and develop practical technical solutions.
• Experience developing scripts and automated solutions using PowerShell, APIs or workflow technologies.
• Ability to communicate technical recommendations and build alignment across technical teams, business partners and other stakeholders.
• University degree, college diploma, equivalent work experience, or a combination of relevant education and industry experience.
• Assets: Microsoft Graph and REST API development.
• Microsoft Teams applications, bots, custom applications or third-party integrations.
• Microsoft Intune, Group Policy, Microsoft Entra ID, modern authentication, Conditional Access, OAuth/OIDC, application registrations or enterprise applications.
• Microsoft Copilot, AI agents, AI-enabled automation or workflow automation.
• Experience with hybrid cloud and SaaS environments, Agile or ITIL delivery, or relevant Microsoft technology certifications.
• This role requires Government of Canada Reliability Status clearance. As part of the clearance process, the Government of Canada will conduct a law-enforcement inquiry and credit check and ask whether you have lived or travelled outside Canada for six consecutive months during the previous five years. You must also account for activities during that period.

What’s in it for you?

• An environment of continuous learning, development and improvement.
• Opportunities to take ownership of your career development through learning programs, skill building and coaching.
• A collaborative and interactive team environment where you can work on evolving employee technologies and digital experiences.
• Time off that gives you flexibility to focus on the moments that matter.
• Access to wellness programs that support mental, physical and financial health.

The Base Pay range is for the primary location for which the job is posted. It may vary depending on the work location of the successful candidate or other factors. In addition to Base Pay, eligible Sun Life employees participate in various incentive plans, payment under which is discretionary and subject to individual and company performance. Certain sales focused roles have sales incentive plans based on individual or group sales results.

Diversity and inclusion have always been at the core of our values at Sun Life. A diverse workforce with wide perspectives and creative ideas benefits our Clients, the communities where we operate and all of us as colleagues.

We welcome applications from qualified individuals from all backgrounds.

Persons with disabilities who need accommodation in the application process, or those needing job postings in an alternative format, may e-mail a request to

We are proud to be a hybrid organization that offers our employees the choice and flexibility to work from both the office and virtually based on the needs of the business, our Clients and you.

We may use artificial intelligence to support candidate sourcing, screening, interview scheduling.

Salary Range: 100,000/100 000 - 143,000/143 000 Job Category: IT - Technology Services Posting End Date: 13/11/2026

Shine together At Sun Life, you can be your most brilliant self.

Our supportive, flexible, and inclusive work environment is one where you – and your career – can thrive.

Whatever your aspirations, collaborative leaders and colleagues are ready to help you learn, grow, and succeed.

Make life brighter

We’re a global company with a passion for people. Our purpose is to help Clients achieve lifetime financial security and live healthier lives.

As a team of 30,000 across 26 countries, our impact is far-reaching, and locally relevant.

There’s power in numbers.

As part of Sun Life’s growing team, you have an impact on people in your community and around the world.

Shape the future With an optimistic eye on a brighter future, we drive to innovate.

Be part of leading change, push boundaries and try new ways of working.

Use data to drive bold actions.

Be agile and pivot as we test and learn.

At Sun Life, we’re driving transformation, sustainability and innovation for our Clients, employees, partners, and communities.

Join us.

Together, we can make the future brighter.

Join a top employer for a brighter future. Visit Sun Life Careers