MATHIEU C.

Senior Microsoft 365 consultant: I migrate, run and fix Microsoft 365 environments, and deliver the IT projects around them. Senior Microsoft 365 consultant with nearly 20 years in IT (14 in consulting, ex-Avanade). I have led technical delivery on Office 365 / Exchange Online migrations totalling 100,000+ mailboxes for large international groups, managing the team on each programme. Since 2022 I have also delivered Microsoft 365 concierge support as a contractor for Microsoft, here on Upwork. What I do: Migrate • Microsoft 365 / Exchange Online migrations: scoping, planning, cutover and post-migration support. Large-scale programmes (from Lotus Notes or on-prem Exchange), plus smaller Cross-Tenant and Google Workspace migrations. Run and support • Troubleshooting and escalation: mail flow, identity and authentication, licensing, Teams, hybrid • Administration of Active Directory, Entra ID and Microsoft 365 Deliver • Technical project management for IT deployments: planning, risks, stakeholders, documentation • PowerShell automation of migrations and administration tasks Night and weekend cutovers: I work from the Philippines (UTC+8), so European nights are my daytime. How I work: a clear plan, regular updates, a documented handover. Fluent French and English, available on EMEA and APAC business hours. Send me your number of users, timeline and current setup, and I'll reply with a plan and an estimate.