The Aquarium is currently seeking an experienced Microsoft Security Engineer to support and manage a sovereign Microsoft security environment aligned with Australian Government security frameworks. This is an exciting opportunity to join a high-performing security team working within a regulated environment supporting critical security operations and Microsoft security technologies. Immediate Start Available NV1 Security Clearance Required Key Responsibilities Implement, maintain, and optimise Microsoft security controls and operational security capabilities. Support and administer enterprise Microsoft security platforms and endpoint technologies. Implement and operate ASD Essential Eight ML2 controls. Perform security monitoring, incident response, endpoint compliance, and governance reporting activities. Work across secure environments aligned to Defence and Government security requirements.