A young conductor with an atypical background, Marc Hajjar has distinguished himself in the conducting field. Semi-finalist of the 2015 Besançon Competition, he is active across many aspects of this profession, whether as a guest of prestigious ensembles, specialized groups, project developer, or through transmission of his art.

With a strong focus on contemporary repertoire and new music, he has, in recent seasons, forged collaborations with leading European institutions such as the Ensemble Modern, Ensemble Intercontemporain, Orchestre Philharmonique de Radio France, and academies like the Lucerne Festival Academy, as well as ensembles such as the Orchestre de Flûtes Français. Selected for the Ensemble Modern Academy (IEMA) in 2019–20, he expanded his repertoire and conducted concerts in a diversity of formats. He also founded Diaphonix ensemble in Germany, alongside fellow IEMA alumni, which became resident at the Fondation Royaumont. Working regularly with both established composers like George Benjamin as well as the younger generation, Marc has premiered over a hundred works to date, and he remains deeply committed to making new music a cornerstone of his artistic mission.

His engagements span a wide range of repertoire, from classical to contemporary, in both symphonic and operatic contexts. He has been invited to conduct the the Orchestre de Chambre de Paris, the Orchestre National d’Auvergne, the Orchestre Victor Hugo Franche-Comté, the Lebanese Philharmonic Orchestra, and the Orchestre National de Lille. He has assisted Alexandre Bloch with the Opéra National de Lyon, Münchener Kammerorchester, and Munich Opera; George Benjamin on his latest opera at the Opéra Comique and with the Radio France Philharmonic; and Marc Leroy-Calatayud and Les Siècles at the Théâtre des Champs-Élysées. The 2025–2026 season will see him make his debuts with the Luxembourg Chamber Orchestra and Ensemble Contrechamps.

Marc is also the co-founder of Ensemble Nouvelles Portées, established in Paris in 2015 with Victor Jacob.  Through this initiative he has combined his entrepreneurial expertise with his artistic ambitions: musical creation in all its forms, promotion of young talents, and transmission particularly around the conductor’s role He spent six years with DEMOS- Philharmonie de Paris and taught ensemble conducting at the Conservatoire de Besançon.

A graduate of the École Centrale Paris, Marc worked as an engineer while maintaining a high-level amateur violinist practice in orchestras. In conducting, he studied under Jean-Sébastien Béreau before earning his Master's degree from the Royal Academy of Music in London. His teachers included Colin Metters, Sian Edwards, Vsevolod Polonsky, Leonid Grin, David Zinman, Stefan Asbury, Péter Eötvös, and Matthias Pintscher.

Marc is a laureate of the Bleustein-Blanchet Foundation.