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Randstad Technologies
Senior M365 Engineer

Senior M365 Engineer

On site

London, United kingdom

£ 650 /day

Senior

Freelance

06-03-2026

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Skills

Encryption Architecture Azure

Job Specifications

Senior M365 Engineer (12-Month Contract)
Location: London, UK (Local SME for PL Re)
Duration: 12 Months
Work Mode:4 Days in OfficeRole Overview
We are seeking a Senior M365 Engineer for a 12-month contract to serve as a Subject Matter Expert (SME) in our London office. You will lead critical migrations, manage local stakeholder governance for our PL Re division, and partner with global engineering on Copilot and new feature adoption.
Key Initiatives & Responsibilities
Migrations & Projects: Lead Mimecast-to-M365 and home drive-to-OneDrive migrations; manage retention/compliance policy rollouts.
Network & Performance: Resolve Teams and network-related issues for London and international offices.
Security & Mail Flow: Act as Line 1 security expert (EOP, mail flow rules, routing, encryption) and manage Proofpoint integrations.
Architecture & Strategy: Design and implement M365 solutions in a global environment, assist with the enterprise roadmap, and provide expert technical assistance to business units.
Compliance: Participate in security reviews and manage e-discovery, legal holds, and archived solutions.
Operations: Support core services (Teams, OneDrive, Exchange, SPO), monitor service updates/roadmaps, and handle escalated incidents.
Required Experience
8+ years: SME-level experience in M365 security, architecture, and design (Exchange Online, SPO, Intune, Azure AD, OneDrive, Teams).
5+ years: Exchange Admin in large-scale, 24/7 environments.
5+ years: Expertise with Azure AD, Intune, and Microsoft EMS security.
5+ years: Experience with Microsoft and Proofpoint e-discovery/compliance processes.
Randstad Technologies is acting as an Employment Business in relation to this vacancy.

About the Company

Randstad Digital is a trusted digital enablement partner that facilitates accelerated transformation for businesses by providing global talent, capacity, and solutions across specialized domains. Our talent solutions allow you to seamlessly scale your team while connecting you with skilled professionals around the world who align with your chosen technologies. Our focus lies in managed solutions, and we empower businesses to move at speed and achieve goals efficiently. We support four service lines including customer experie... Know more