Eric Gauthier has extensive experience in geotechnical engineering, having worked at FONDASOL since December 1998 in various capacities, including as Responsable agence Avignon. Gauthier has been actively involved in geotechnical investigations for significant projects, such as the Viaduc de Tulle in collaboration with EGIS and SCETAUROUTE. Prior to this, Gauthier completed a six-month internship as a geotechnical engineer at Scetauroute in 1998, contributing to projects along the A89 motorway. Eric Gauthier holds a Diplôme d'ingénieur in geotechnical and geo-environmental engineering from the Ecole Nationale Supérieure de Géologie, earned between 1995 and 1998.