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Senior M365 Messaging & Security Engineer Job ID: JP054249

Hospitality Full Benefits Career Growth
Company

ITProposal

Location

Brussels, Belgium

Posted

June 05, 2026

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About This Opportunity

Senior M365 Messaging & Security Engineer

We are looking for a Senior IT System Engineer with extensive experience in Microsoft messaging environments, secure integrations, and M365 security architectures within complex multi-forest and multi-tenant environments.

Key Responsibilities

  • Design, implement, and support secure M365 and messaging infrastructures
  • Manage and secure SMTP flows through Exchange Online and Fortimail
  • Configure and maintain anti-spam, quarantine, blacklisting, and mail protection mechanisms
  • Implement secure integrations between M365 and third-party systems
  • Manage identity protection and synchronization across multi-forest environments
  • Develop and automate processes using PowerShell, Microsoft Graph, and scripting tools
  • Support advanced Microsoft Purview features including:
    • Data Lifecycle Management
    • Auditing
    • eDiscovery
    • In...