Jean studied singing and conducting at the Mozarteum University in Salzburg, at the Amsterdam Conservatory and completed his studies at the Flemish Opera Studio in Ghent (Belgium). He has sung on various stages, such as the Flemish Opera in Antwerp and Ghent, the Théâtre National and the Grand Théâtre in Luxembourg, the Chamber Opera Munich, the Ruhrfestspiele Recklinghausen, the Stadttheater Langenthal and the Opéra de Bordeaux. His repertoire includes classical roles as well as many pieces by contemporary composers. His special passion is music theatre for young audiences—even very young audiences—and music mediation projects. In this field, he works at the Theater de Spiegel Antwerpen,
Comedia Köln, Traffik Theater, with the Luxembourg Philharmonic Orchestra, the Wuppertal Symphony Orchestra, and the Saarland Radio Philharmonic.