Born in Angers, Boussard studied at the Paris Nanterre University and graduated as a Master of Theatre.

[3] His operatic beginning is marked by close collaborations with William Christie, Teresa Berganza and Bernard Foccroulle, director of the Théâtre Royal de la Monnaie (Brussels) who has regularly invited him.

He has staged operas in Asia, such as New National Theatre Tokyo, and in the US, including the Brooklyn Academy of Music.

[2] He has collaborated with conductors such as Yves Abel, Rinaldo Alessandrini, Lionel Bringuier, Paolo Carignani, Riccardo Frizza, Patrick Fournillier, Daniel Harding, René Jacobs, Alexander Joel, Alessandro De Marchi, Wayne Marshall, Carlo Montanaro, Renato Palumbo [it], Andreas Spering and Christian Thielemann, among others.

His production of Bellini's I puritani was jointly shown at the Opéra Royal de Wallonie in Liège and the Oper Frankfurt.