Security Engineer

The client is seeking a highly skilled Microsoft 365 Messaging & Security Engineer to manage and secure enterprise email environments. This role involves Exchange Online administration, Microsoft Defender for Office (MDO) management, and active participation in incident response and Root Cause Analysis (RCA) discussions. The candidate will act as a Level 2 escalation point, collaborate with global teams, and confidently represent the organization in high-visibility forums. Key Responsibilities 1. Exchange Online Administration Manage and maintain Exchange Online configurations, including mail flow, connectors, transport rules, and mailbox policies. Troubleshoot complex email delivery issues, spam filtering, and security configurations. Implement and optimize Exchange Online features for performance, reliability, and compliance. 2. Microsoft Defender for Office (MDO) Configure and manage anti-phishing, anti-spam, Safe Links, and Safe Attachments policies. Monitor, investigate, and respo...