Senior Messaging and Collaboration Engineer Fully Onsite in London (EC2Y / Moorgate) International Banking Group 726.43pd Inside IR3501/01/26 to 31/08/26Ready to deliver technical leadership and make an impact as a Senior Messaging and Collaboration Engineer at a leading international banking group? This is your chance to steer transformative messaging and collaboration projects, working hands-on with the latest cloud and hybrid technologies in a dynamic team.Enjoy exposure to both project and business-as-usual environments, contributing to major technical modernisation across Microsoft Exchange, Microsoft 365, Intune, Teams, SharePoint, and Azure Active Directory.Key ResponsibilitiesLead messaging, collaboration, and mobility projects, ensuring on-time delivery to enterprise standards.Design and implement collaboration solutions across Exchange, M365, Intune, including hybrid configurations and migrations.Administer, optimise, and maintain Microsoft 365 services (Exchange Online, Teams, SharePoint, OneDrive, Compliance Centre).Implement and maintain email and data security controls (SPF, DKIM, DMARC, anti-spam, DLP, ATP).Provide Tier-3 support for complex technical incidents and act as technical authority to internal teams.Drive solution delivery for transformation and operational programmes, with high reliability and compliance.Work cross-team with security, networking, and integration specialists.Maintain comprehensive documentation and support roadmap development.Key Skil