Microsoft 365 Platform Engineer — Email Security Lead

Company: Smartstream Limited
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Job Description:

Smartstream Limited in Bristol is seeking a Senior Microsoft 365 Platform Engineer for a 6-month FTC to own and secure the Microsoft 365 tenant across the global business. You will lead Exchange Online, SharePoint Online, OneDrive and Teams, Entra ID, Copilot, and automation with PowerShell and Graph, mentoring juniors and collaborating with Information Security and Global IT.

Hybrid role with 3 days in the office, driving security, governance, and cost optimisation across licensing and vendor

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Posted: September 4th, 2026