3Rd Line Support Microsoft 365 Engineer [3Rd Line Support, Microsoft 365, Messaging, Sharepoint]

Key Skills: 3rd Line Support, Microsoft 365, messaging, SharePoint

We are looking for 3rd Line Support Microsoft 365 Engineer at Manchester, UK

Job Description

We are seeking an experienced 3rd Line Support Microsoft 365 Engineer with strong expertise across the Microsoft 365 ecosystem and a specialization in Messaging and Collaboration Services. The successful candidate will act as a senior technical escalation point for complex incidents, problems, and service requests, providing expert-level support for Microsoft Exchange Online, mail flow, security, compliance, and hybrid messaging environments.

ESSENTIAL SKILL:

• Experience supporting complex messaging environments involving Exchange mail flow, Proofpoint, Clearswift, Egress, or PGP.

Your skills and experience

• Provide expert 3rd line support for enterprise messaging platforms
• Manage and troubleshoot complex email security, encryption, and compliance solutions.
• Investigate and resolve issues relating to:
• Email delivery and routing
• Secure email encryption
• Message hygiene and filtering
• Anti-spam and anti-phishing policies
• Data Loss Prevention (DLP)
• False positives and quarantine management
• Secure mail exchange with external partners
• Configure and support third-party messaging security gateways and email protection platforms.
• Work with Security Operations teams to investigate phishing campaigns, email spoofing attempts, malware incidents, and email-based threats.
• Support regulatory and compliance requirements through secure email and information protection technologies.

Microsoft 365 Expertise & SharePoint Skills

• Strong hands-on experience with Microsoft 365 suite, including SharePoint Online, Teams, OneDrive, and Exchange.
• Expertise in M365 administration, configuration, and tenant management.
• Knowledge of security, compliance, and governance in M365 environments.
• Experience with Sharepoint site architecture, permissions, content management, and document libraries
• Expert-level knowledge of:
• Exchange Online
• Exchange Hybrid
• Exchange Online Protection (EOP)
• Microsoft Defender for Office 365
• Outlook and Outlook connectivity
• Mail flow management and transport rules
• SMTP and email routing

Hands-on administration and support of enterprise email security and governance platforms, including:

• Proofpoint -Mail gateway and security
• Clearswift -Routing, DLP and content control
• Egress & PGP - Encryption and partner mail

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