Coming from a background in the hotel industry, he gained experience managing catering units, food and beverage outlets, and in wine service (sommelier). He spent two years in Australia continuing his studies and working in the wine trade industry.

As a teacher, he is specialized in subjects relating to food & beverage management, and particularly wine training, and he has taught in Polynesia and France. In his classes, Gildas shares his deep interest in the field of wine consumption and trade world-wide, and he examines the impact of cultural backgrounds on wine tasting.