Senior Microsoft 365 Platform Architect
Gsk
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Job summary
GSK is seeking a Principal Platform Architect to own the M365 tenant architecture for 50,000+ users across multiple countries. You will balance collaboration velocity with information protection, and lead design authority for Exchange Online, SharePoint Online, OneDrive, Teams, Viva, Power Platform, Copilot, Entra ID and Purview.
This hands-on role requires building, testing and validating designs in a lab tenant, and shaping licensing, data residency and governance decisions across the
Qualifications
- Bachelor's degree or equivalent professional expertise in a technical discipline.
- Significant IT infra/ collaboration tech experience with design authority.
- Experience owning a Microsoft 365 tenant of 20,000+ users across multiple countries.
- Hands-on mastery of Exchange Online, SharePoint Online/OneDrive, Teams, Entra ID and Purview controls.
- Proven governance for external sharing and information governance.
Responsibilities
- Own the target-state architecture for the M365 tenant across countries and data residency.
- Define multi-year productivity roadmap, retire legacy platforms, consolidate tooling.
- Monitor Microsoft 365 roadmap and decide on adoption, deferral or disablement.
- Produce and maintain reference architectures and ADRs with explicit trade-offs.
- Architect information protection across the tenant with Purview labels and DLP.
- Lead governance for Copilot Studio and external sharing models.
- Collaborate with Cyber Security on tenant security posture and zero-trust controls.
Skills
Education
Tools
Job description
GSK is seeking a Principal Platform Architect to own the M365 tenant architecture for 50,000+ users across multiple countries. You will balance collaboration velocity with information protection, and lead design authority for Exchange Online, SharePoint Online, OneDrive, Teams, Viva, Power Platform, Copilot, Entra ID and Purview.
This hands-on role requires building, testing and validating designs in a lab tenant, and shaping licensing, data residency and governance decisions across the
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