Currently, Didier Casas occupies the position of General Counsel of Télévision Française 1 SA and Deputy MD-Human Resources & Communications at Bouygues Telecom SA. Mr. Casas is also on the board of Société Nationale SNCF.

In the past Mr. Casas held the position of Chairman at Bouygues Telecom Foundation, Secretary General at Dexia Crédit Local SA, Chairman at Fédération Française des Télécoms, Chairman of Fédération Française des Télécoms and Associate Professor at the University of Poitiers.

Didier Casas received a graduate degree from Sciences Po and an undergraduate degree and a graduate degree from the University of Grenoble.