Comet

Contractor job Chef de Projet / Directeur de Projet Migration vers Exchange Online

Paris

Comet

Job position

Contractor
As soon as possible
6 months renewable
570-850 €
> 10 years experience
Hybrid
Paris, France
Published on 06/03/2026

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Dans le cadre de la modernisation de l’infrastructure IT d’un client bancaire grand compte, nous recherchons un Chef de projet / Directeur de projet pour piloter la migration de la messagerie vers Exchange Online pour environ 20 000 utilisateurs.

Missions

Pilotage de la migration

  • Piloter la migration de la messagerie vers Exchange Online / Microsoft 365.

  • Organiser les vagues de migration utilisateurs.

  • Coordonner les équipes infrastructure, réseau et Microsoft 365.

Gestion du projet

  • Élaborer et suivre le planning de migration.

  • Gérer les ressources et le plan de charge.

  • Suivre le budget du projet.

Gouvernance

  • Préparer et animer les comités projet et comités de pilotage.

  • Produire les reportings d’avancement.

Gestion des risques

  • Identifier les risques techniques liés à la migration.

  • Mettre en place les plans de mitigation.

Périmètre technique / prérequis
  • Microsoft 365

  • Exchange Online

  • Migration de messagerie

  • Active Directory

  • Hybrid Exchange

  • Gestion des boîtes mail utilisateurs

  • Migration cloud

  • Outils de migration (type Azure AD Connect, migration tools M365)

Candidate profile

Profil recherché
  • Expérience en projets de migration M365

  • Connaissance des environnements messagerie Microsoft

  • Expérience en projets à grande échelle

  • Anglais courant

Paris, France
20 - 99 employees
Start-up
Comet, the agile talent ecosystem. We match our pool of over 50000 motivated and available, qualified and active tech freelancers, with company missions. Our goal is to satisfy both sides: relevant and prompt skills for companies, security and inspiring projects for freelancers. Comet’s freelance talent community comes highly motivated, because they choose the projects on which they work. We screen and evaluate the best tech and data talents to build an elite community. Powered by AI in order to intelligently detect, qualify and match a contingent workforce with corporate projects, to enhance and simplify user experience. With clients such as L’Oréal, Les Mousquetaires, Allianz, Pernod Ricard, Total -a client base that makes up 35% of the CAC40, we're the agile workforce for the digital age. To confront today's digitally-disrupted global marketplace and cater to the hyper-connected consumer of tomorrow, true agility is required. Technology alone is not enough, it is through the human that real transformation can be sustained. The technology is available and the consumer is ready. Comet provides the missing part: the people. We are 50+ in the team today, and are looking for amazing talents to join us! Our headquarters is in the hearts of Paris, Lyon, Lille and Nantes.

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Chef de Projet / Directeur de Projet Migration vers Exchange Online

Comet

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