3rd Line Support Engineer

Role Title: 3rd Line Support Engineer (Messaging Specialist) Location: Manchester / fully onsite Duration: 6 initial months contract Rate £470 - £520 CLearance: BPSS required MUST BE PAYE THROUGH UMBRELLA Role Description: Job Description - Workplace Engineer - 3rd Line Support Microsoft 365 Engineer (Messaging Specialist) 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. Your skills and experience Provide expert 3rd line support for enterprise messaging platforms<br />Manage and troubleshoot complex email security, encryption, and compliance solutions.<br />Investigate and resolve issues relating to: o Email delivery and routing o Secure email encryption o Message hygiene and filtering o Anti-spam and anti-phishing policies o Data Loss Prevention (DLP) o False positives and quarantine management o 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 &amp; 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: o Exchange Online o Exchange Hybrid o Exchange Online Protection (EOP) o Microsoft Defender for Office 365 o Outlook and Outlook connectivity o Mail flow management and transport rules o 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 &amp; PGP - Encryption and partner mail If you receive suspicious outreach claiming to be from us, please contact us via the ManpowerGroup website