Senior Microsoft 365 Engineer

Job Description:

Senior Microsoft 365 Engineer

DXC Technology (NYSE: DXC) is a leading enterprise technology and innovation partner delivering software, services, and solutions to global enterprises and public sector organizations — helping them harness AI to drive outcomes at a time of exponential change with speed. With deep expertise in Managed Infrastructure Services, Application Modernization, and Industry-Specific Software Solutions, DXC modernizes, secures, and operates some of the world’s most complex technology estates. Learn more on dxc.com.

Role Overview

We are seeking a Senior Microsoft 365 Engineer to support the run and maintain operations of a large enterprise Microsoft 365 environment. This role focuses on operational stability, governance-aligned administration, and incident resolution across core Microsoft 365 services within a managed services model.

The ideal candidate brings deep hands-on experience with Microsoft 365, strong operational discipline, and the ability to support complex environments in a 24x7 enterprise setting.

What You’ll Do

• Administer and support Microsoft 365 services, including:
  • Exchange Online
  • SharePoint Online
  • OneDrive for Business
  • Microsoft Teams (chat, meetings, calling)
  • Office applications (Word, Excel, PowerPoint, Outlook, OneNote)
• Provide incident triage, troubleshooting, and resolution as part of a 24x7 support model.
• Monitor tenant health and respond to Microsoft 365 service alerts and outages.
• Act as a senior escalation point for complex Microsoft 365 issues.
• Manage Teams and collaboration services in alignment with governance standards (ownership, guest access, quotas).
• Administer email security and compliance via Exchange Online Protection (EOP).
• Configure and support Multi-Factor Authentication (MFA) and related access controls.
• Support legal and compliance activities such as Legal Hold and eDiscovery access provisioning.
• Participate in change management, service requests, audits, and operational reporting.
• Collaborate with service managers, client stakeholders, and Microsoft support teams.
• Maintain accurate documentation of incidents, changes, and configurations.

What You Bring

• 5+ years of enterprise Microsoft 365 administration experience.
• Strong expertise in Exchange Online, Teams, SharePoint Online, and OneDrive.
• Experience supporting large user environments (thousands of users).
• Solid understanding of Microsoft 365 security fundamentals (EOP, MFA).
• Familiarity with ITIL processes (Incident, Problem, Change).
• Experience working in a managed services or outsourcing environment.
• Excellent troubleshooting, documentation, and communication skills.
• Ability to work calmly and effectively during high-impact incidents.

Nice to Have

• Microsoft certifications (e.g., MS‑102, MD-102, MS-700 )
• Experience in regulated industries (healthcare, public sector, finance)
• Power BI operational reporting experience
• Prior experience acting as a Delegated or Global Administrator

Work environment:

• This role follows a hybrid work model in Ontario.

DXC is an equal opportunity employer. We welcome the many dimensions of diversity. Accommodation of special needs for qualified candidates may be considered within the framework of the DXC Accommodation Policy.

In addition, DXC Technology is committed to working with and providing reasonable accommodation to qualified individuals with physical and mental disabilities. If you need assistance in filling out the employment application or require a reasonable accommodation while seeking employment, please e-mail AODA Canada Requests.

Note: This option is reserved for applicants needing a reasonable accommodation related to a disability.

At DXC Technology, we believe strong connections and community are key to our success. Our work model prioritizes in-person collaboration while offering flexibility to support wellbeing, productivity, individual work styles, and life circumstances. We’re committed to fostering an inclusive environment where everyone can thrive.

Recruitment fraud is a scheme in which fictitious job opportunities are offered to job seekers typically through online services, such as false websites, or through unsolicited emails claiming to be from the company. These emails may request recipients to provide personal information or to make payments as part of their illegitimate recruiting process. DXC does not make offers of employment via social media networks and DXC never asks for any money or payments from applicants at any point in the recruitment process, nor ask a job seeker to purchase IT or other equipment on our behalf. More information on employment scams is available here.