Born in Toulouse, Huillet won first prize at the Conservatoire de Paris where he was a pupil of Pierre Sancan and Germaine Mounier.
In 1987, Huillet won first prize at the Cleveland International Piano Competition.
Il a été invité à jouer dans des salles prestigieuses et avec de nombreux grands orchestres.
A teacher at the Conservatoire à rayonnement régional de Toulouse [fr], he is regularly invited to sit as a jury in major international piano competitions.
His works are created by great artists but also by the "duo Cernat-Huillet" or the "trio Huillet" where the couple is joined by clarinetist Gari Cayuelas-Krasznai.