Maxime Sonntag

Maxime Sonntag currently serves as the Group Purchasing & Supply Chain Director at Groupe Keolis, where responsibilities include strategy development and transformation in the areas of energy purchasing and supply chain management. Previously, Maxime held significant roles at Alstom, including Group Purchasing Director for Metro & Light Rail Vehicles, managing a substantial products portfolio and achieving significant savings. With a career that began in 2003, Maxime has amassed experience in various purchasing roles, focusing on cost management, team leadership, and strategic sourcing across multiple industries. Educational background includes degrees from ESSEC Business School and KEDGE Business School, and participation in a think-tank for railway industry leaders.