Claire Waysand has spent most of her career working for the French government, and in particular headed the office of the Minister of Finance and Public Accounts. She was previously Deputy Director of the Prime Minister's Office and Deputy Director General of the Treasury. Claire Waysand has represented France on the European Economic and Financial Committee and was a director of the European Investment Bank (EIB), and worked at the International Monetary Fund.

Claire Waysand joined ENGIE Group in October 2019 as Corporate Secretary. From February 24 to December 31, 2020, she was appointed Acting Chief Executive Officer and, together with Judith Hartmann and Paulo Almirante, was responsible for the operational management of the Group. She brings her in-depth knowledge of French, European and international economic and financial issues and her experience to the service of the Group's strategy.

Claire Waysand is a graduate of Ecole Polytechnique and ENSAE, holds a Master of Science in Economics (London School of Economics) and a PhD in Economics (Paris X).