Microsoft 365 Engineering Expert A leading Australian technology organisation is seeking a senior Systems Engineer with deep expertise in Exchange Online, mail flow and M365 operations. This highly experienced professional will join a core platform engineering function to review, clean up and improve large-scale Microsoft 365 mail environments. About the Role This senior contract role suits someone who enjoys working with complex systems, untangling legacy configurations and leaving platforms in better states than they found them. You'll take ownership of reviewing Exchange Online mail flow architecture and optimise it for performance. The Opportunity