Mathieu was born in Clermont-Ferrand in France in 1974. He graduated in Civil Engineering in France in 1997.
He started his career as a reseacher of the Swiss Federal Institute for Snow and Avalanche Research in Davos. There managed many R and D Projects with the whole wintersports Industry for around 12 years. Since 2008 Mathieu is responsable for the ski development at the compagny Stöckli Swiss sports AG in Malters.