About Thomas
French
Native or bilingual
English
Fluent
Experience
- WavestoneSenior Consultant - CTO AdvisoryMay 2025 - Today (1 year and 1 month)Consultant Senior chez Wavestone, avec 4 ans d’expérience, spécialisé dans l’accompagnement des transformations stratégiques, organisationnelles et digitales. Solide capacité d’analyse, pilotage de projets complexes et conseil auprès de directions métiers et IT.
- SEPHORAGlobal OKTA Implementation & SSO Migration Factory – Project LeadDecember 2024 - Today (1 year and 6 months)Neuilly-sur-Seine, FranceLed the global implementation of OKTA as the centralized Identity Provider, replacing regional SSO solutions. Oversaw the migration of over 800+ applications to the global OKTA tenant, including the setup and management of a dedicated migration factory.Acted as a central point of coordination between global architecture, security, and local IT teams
- SephoraProject Manager - Entra ID MigrationRETAIL (SMALL BUSINESS)January 2024 - December 2024 (11 months)Neuilly-sur-Seine, France~~ Key responsibilities ~~Coordinated migration planning and execution across multiple geographies and time zones.Worked closely with global and local stakeholders to align timelines, business readiness, and technical requirements.Designed and delivered change management campaigns, user communication plans, and training materials to support adoption.Ensured minimal disruption to end users during each migration wave.Played a key role in global governance, reporting, and issue resolution.
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Education
- Ingénieur Généraliste - Grade Master IIArts et Métiers Paris2021
- Master de spécialisation en Management des RisquesIAE Paris - Sorbonne Business School2022
Certifications
- Scaled Agile (SAFe®)SAFe2025
- Numérique ResponsableInstitut du Numérique Responsable2025