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About Oussama

Expert with over 10 years of experience in the design, deployment, andgovernanceofMicrosoft 365and Azure Entra ID architectures.Specialist in complex environments (multi-tenant, mergers & acquisitions)**, I support organizations in securing their identities (Zero Trust) and optimizing their MCO (Run). I have led strategic transformation programs including the **migration of over 15,000 users, with proven expertise in cross-platform migrations (Google Workspace to M365).
  • English

    Fluent

Can work on-site
Paris (up to 50km)

Experience

  • AREAS
    M365 Expert / Cloud Architect
    February 2025 - Today (1 year and 6 months)
    Paris, France
    *M365 Migration:Technical lead for the migration of 2,000 accounts to the Cloud ecosystem.

    *Modern Workplace:Management of the Windows 10 to Windows 11 migration project.

    *Software Deployment:Mass deployment of the Office 365 and Office 2024 LTSC suite.

    *SharePoint Migration:SharePoint Online architecture for migrating NAS file servers (200+ sites and offices in France).
    Écosystème M365 Migration M365 SharePoint Online Migrations Cross-Tenant & Google Workspace vers M365 Modern Workplace
  • Solutions30 - Luxembourg
    M365 Architect & Lead Migration
    January 2019 - January 2025 (6 years)
    Luxembourg
    *Large-Scale Migrations:Technical direction of several migration projects totalingover 15,000 users, including complex multi-tenant consolidation and Google Workspace to M365 switchover scenarios.

    *Mergers & Acquisitions:Consolidation of multiple Office 365 tenants, ensuring a smooth transition.

    *Run Management & Governance:Complete tenant management (IAM, joiners/movers/leavers, data lifecycle, Exchange/Entra/Teams/SharePoint administration).

    *Strategy & Licensing:Licensing optimization and Microsoft contract management (cost rationalization).

    *Security & Compliance:Implementation of governance, sharing, and security policies.

    *Data Protection (MIP):Implementation ofSensitivity Labelsfor document/email classification/encryption andcontainer governance(Teams, M365 Groups, SharePoint Sites).

    *Cyber Vigilance & Awareness:Orchestration of Phishing test campaigns viaMicrosoft Attack Simulationand configuration of the "Report Message" button.

    *Digital Workplace (PowerApps):Functional design and development of an application for managing group and accountcertificate campaigns.
  • Solutions30 - France
    Senior Microsoft 365 Consultant / Project Manager
    January 2016 - January 2019 (3 years)
    Paris, France
    *Messaging Migration:Lead and execution of mailbox migration from **Zimbra to Exchange On-premises 2013**.

    *Hybridization:Maintenance of the Exchange 2013 environment and synchronization via Azure AD Connect.

    *Collaboration:Deployment and integration of multi-site Teams and SharePoint.

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Education

  • Master Informatique
    Université de Valenciennes
    2014
    Master Informatique

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