Xavier studied mathematics for five years at the university and got a PhD in Celestial Mechanics, Geodesy and Fundamental Astronomy at the Observatory of Paris. Then, he joined Astrium (Toulouse) where he worked for the Telecommunication Business Division as the Operation responsible for W3A, Amazonas and Inmarsat 4.
In May 2005, he joined the Gaia Project team (ASF) to prepare the Gaia proposal and afterwards, he took the responsibility for the CDU procurement and the preparation of the spacecraft operations. Currently he is in charge of the PAA procurement and the operations.
Gaia people archive