> Markdown version of [/jobs/ext/4597299-microsoft-365-messaging-collaboration-engineer](https://www.wearedevelopers.com/jobs/ext/4597299-microsoft-365-messaging-collaboration-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Microsoft 365 Messaging & Collaboration Engineer - **Company:** Deerfoot Recruitment Solutions Limited - **Location:** London, UK - **Salary:** £156,000.0 - £188,874.0 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Microsoft Office, Windows PowerShell, Microsoft InTune - **Published:** November 6, 2026 - **Apply:** https://www.careerboard.com/gb/en/find-jobs-in-United-Kingdom/-BA466925C9FC172733/ ## About the Role * Extensive, recent experience engineering Exchange Online and Microsoft 365 in enterprise environments * Hybrid Exchange experience, ideally including migrations from on-prem to Exchange Online * Good understanding of email routing and email security gateways, from any vendor * Solid PowerShell and Microsoft Graph skills * Entra ID, Conditional Access, Intune and Purview experience Desirable: Teams telephony (wanted in one of the two hires), Proofpoint, financial services or other regulated environments, Defender for Office 365, Copilot readiness ## Description Are you an experienced Microsoft 365 messaging engineer that people turn to when mail flow, Exchange Online or Teams needs a senior pair of hands? We're recruiting two contract Messaging & Collaboration Engineers for a leading global financial services organisation. You'll be the 2nd and 3rd line escalation point for the support team and will get involved in project work as it arrives, including a migration exercise that is under way. It's a hybrid Exchange environment, mostly cloud with some mailboxes still on-prem, and you'll be expected to pick up work from day one. What You'll Be Doing * Acting as the 2nd and 3rd line escalation point for the BAU support team * Supporting and evolving Exchange Online, Teams and wider Microsoft 365 collaboration services * Working across a hybrid Exchange environment, online and on-prem * Managing email routing, mail flow and the email security gateways around them * Supporting migration and other project work as it comes in * Automating with PowerShell and Microsoft Graph