Microsoft 365 Engineer (Messaging Specialist)

LA International; Manchester; On-site; GBP 74,000 - 92,000; Part time

Job summary

LA International is seeking a Microsoft 365 Engineer (Messaging Specialist) for a 3-month contract in Manchester, onsite. You will serve as a senior escalation point for complex incidents across Exchange Online, mail flow, and security, with hybrid messaging environments.

The role requires hands-on experience with Proofpoint, Clearswift, Egress, PGP, and enterprise messaging platforms, focusing on secure mail, encryption, and DLP. Umbrella rate £400–£500 per day.

Qualifications

• Experience with Exchange Online, mail flow, and hybrid messaging environments.
• Strong expertise in enterprise messaging platforms and email security implementations.
• Knowledge of DLP, data loss prevention, and compliance.

Responsibilities

• Provide expert 3rd line support for Microsoft 365 Messaging and related services.
• Troubleshoot complex email security, encryption, and delivery issues.
• Collaborate with Security Operations to investigate phishing campaigns and threats.

Tools

Proofpoint

Clearswift

Egress

PGP

Job description

Microsoft 365 Engineer (Messaging Specialist) 3 Month contract initially + Extensions

Based: Onsite in Manchester

Rate -£400 - £500 p/d via Umbrella

We have a great opportunity with a world leading organisation where you will be provided with all of the support and development to succeed. A progressive organisation where you can really make a difference. We have a great opportunity for a Microsoft 365 Engineer (Messaging Specialist) on a long term program of work.

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

Key Skills & Experience:

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

LA International is an award-winning partner of choice for many of the world's most influential companies and government organisations. Holding Enhanced Government Security Accreditation, we are recognised as the European market leader in the delivery of Security Cleared talent to organisations that demand the very highest levels of security, compliance and assurance.

A multiple award-winning organisation, having secured the prestigious Queens Award for Enterprise: International Trade over consecutive years. We are committed to fostering an inclusive, equitable and accessible workplace where everyone feels valued and supported. We welcome applications from all individuals, regardless of background or identity, and we encourage candidates who may not meet every listed requirement to still apply. If you require any adjustments or support during the recruitment process, please let us know and we will work with you to ensure a fair and accessible experience.

Please Note: If a high volume of applications is received, only candidates shortlisted will be contacted.