Christine Jeandel. Chief Executive Officer. Christine Jeandel has been CEO of Colisée since July 2014. She began her career in real estate development and management with the Caisse des Dépôts et Consignation Group. In 1999, she joined Médica as Chief Executive Officer and developed its operations in France, Belgium and Italy. Christine holds a Master’s degree in Economic and Social Administration from the University of Paris II (Panthéon Assas) and a post-graduate degree from Sciences Po Paris. linkedin.com