Guillaume is an intellectual powerhouse. He has a double degree : a Master from one of France's most prestigious business schools, ESSEC, and a Software Engineering degree.

Guillaume did his internship at Netsize pre-money and was responsible for platform design at Apocope, a mobile marketing company. He has also spent a number of years at Bouygues Telecom working with the team responsible for the mobile portal.

Guillaume has been working for 5 years with offshore development teams and has traveled to Asia to train an R&D and development team.

Guillaume then co-founded TexoMobile and brought to bear his phenomenal energy and vision. His role at TexoMobile is operations, strategy, marketing and monetization.