Etienne joined Air Liquide in 1997 and has held various positions related to the design and the safety of primary production units, first in Research and Development, then in Engineering and Construction, as Technical Director. More recently, he was in charge of Hydrogen Refueling Stations design and construction in Japan.
He is currently Group Process Safety Director.
Etienne has engineering degrees from the École Polytechnique and the École Nationale des Ponts et Chaussées, France.