Senior M365 & Exchange Administrator

Ontario Power Generation (OPG) in Oshawa is seeking a skilled M365 Administrator (Exchange) to ensure reliable, secure email and collaboration across the enterprise. You will manage Exchange Online, mailbox configurations, and hybrid setups while optimizing Teams, SharePoint, OneDrive and other M365 services.

The role requires a 4-year degree and 6+ years of Exchange administration experience, with strong PowerShell skills, documentation discipline, and the ability to work with cross-functional