M365 Platform Architect: Enterprise Collaboration & AI

GSK is seeking a Principal Platform Architect for Microsoft 365 to own the target‑state architecture for the M365 tenant used by 20,000+ users across multiple countries. You will define a multi‑year productivity roadmap, migrate legacy platforms, and consolidate tooling to maximize collaboration while controlling risk and cost.

You will produce ADRs, reference architectures, and governance for data protection, sharing, and compliance, partnering with security, privacy, and legal teams to ensure

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