A prize-winner at international competitions at Markneukirchen and at Toulon, he started his professional career as first trombone with the Nice Philharmonic Orchestra, and then became trombone soloist with the Paris Opera Orchestra.
Jacques Mauger is still active as a teacher at the "Conservatoire à Rayonnement Régional de Paris and the trombone Professor HEMU of Lausanne.
He often gives masterclasses in numerous countries: France, the U.K, Japan, Korea, China, Spain, Germany, Switzerland, Holland, the United States, and South America.
He also developed the new AC440 trombone model in Antoine Courtois Paris brass factory.
In his role as a true Ambassador of the French school and its repertoire, he regularly presents masterclasses throughout the world for the soloists of tomorrow.