M365 Engineer

We are supporting a major financial services organisation on a complex M365 integration programme and are looking for a Senior M365 Engineer.

This is a hands-on engineering role, working closely with architects to build and configure M365 environments in line with agreed security patterns, governance standards and change controls.

Key focus areas:

Build and configure route-to-live M365 tenant environments, including provisioning, baseline configuration and controlled promotion into production
Configure Exchange Online mail flow, connectors, transport rules and related security controls
Implement M365 encryption controls, including BYOK/Customer Key patterns, key deployment and rotation, working from architect-defined designs
Configure SharePoint Online in line with agreed governance patterns, including site structure, permissions and external sharing controls
Support Entra ID/Conditional Access/identity-related configuration where required
Deliver changes within formal change management/CAB frameworks
Work closely with architects and programme teams to ensure designs are implemented accurately and operationally supportable

Strong hands-on Microsoft 365 engineering experience
Exchange Online/mail flow/hybrid or migration experience
SharePoint Online configuration and permissions experience
Entra ID/Conditional Access exposure
Experience working in large enterprise or regulated environments
Comfortable operating within structured change control
Financial services experience would be useful but is not essential