O365 Engineer III

CBTS serves enterprise and midmarket clients in all industries across the United States and Canada. CBTS combines deep technical expertise with a full suite of flexible technology solutions--including Application Modernization, Managed Hybrid Cloud, Cybersecurity, Unified Communications, and Infrastructure solutions. From developing and deploying modern applications and the secure, scalable platforms on which they run, to managing, monitoring, and optimizing their operations, CBTS delivers comprehensive technology solutions for its clients' transformative business initiatives.

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OnX is a leading technology solution provider that serves businesses, healthcare organizations, and government agencies across Canada. OnX combines deep technical expertise with a full suite of flexible technology solutions—including Generative AI, Application Modernization, Managed Hybrid Cloud, Cybersecurity, Unified Communications, and Infrastructure solutions. From developing and deploying modern applications and the secure, scalable platforms on which they run, to managing, monitoring, and optimizing their operations, OnX delivers comprehensive technology solutions for its clients’ transformative business initiatives.

For more information, please visit

We are looking for an experienced L3 SharePoint & Microsoft 365 Support Engineer to join our global operations team. This is a technical support role focused on incident resolution, request management, troubleshooting, and platform administration for a global Managed Services Provider (MSP) environment.

The ideal candidate will have deep expertise in SharePoint Online and Power Platform with strong troubleshooting skills, stakeholder communication, and the ability to support enterprise-level environments.

• Handle L3-level incidents and service requests related to SharePoint Online, One Drive for Business, Power Platform, and other M365 services.
• Monitor, troubleshoot, and maintain SharePoint Online infrastructure including site collections, permissions, performance, and compliance.
• Manage and resolve sync issues, outages, and performance‑related problems across SharePoint and One Drive.
• Administer One Drive for Business including backup, DLP, retention, and compliance policies.
• Assist in transitioning Nintex forms/workflows to Power Apps and Power Automate flows.
• Maintain technical documentation, runbooks, and standard operating procedures (SOPs).
• Act as an escalation point for junior support staff and contribute to process improvement within the operations team.
• Ensure adherence to ITIL processes for incident, problem, and change management.

• Permissions and compliance management (tenant, site, and item level).
• Performance troubleshooting, outage handling, and diagnostics.

• Deep understanding of One Drive sync, retention policies, backup/recovery.
• Troubleshooting sync issues, large file uploads, and connectivity errors.

• Build and support Canvas and Model‑Driven apps.
• Migrate workflows from Nintex to Power Automate.

• Experience with Exchange Online, Teams, Azure AD, Microsoft 365 Admin Center.
• Power Shell scripting for M365 service management.
• Familiarity with tools like Share Gate for migrations.

• Microsoft Certified:
  Power Platform App Maker / Security Administrator Associate.
• Experience in a Managed Services Provider (MSP) or global IT operations environment.

• Strong problem‑solving and troubleshooting mindset.
• Excellent verbal and written communication for stakeholder interaction.
• Able to work independently and mentor junior engineers.
• Comfortable working in rotational shifts (if required) and ticket‑based environments.

Four years of college resulting in a bachelor’s degree or equivalent.