Julien began learning piano at the age of 5 and first performed on stage at the Salle Cortot (Paris) at the age of 7. He was taught by Erik Berchot at the Conservatoire National de Région de Marseille and Rena Shereshevskaya at the l’Ecole Normale de Musique de Paris Alfred Cortot. He was supported by the Zaleski Foundation, Assophie association and the Safran Foundation during its training. He was spotted in January 2013 by Maria João Pires during a course at the Cité de la Musique (Paris) and was subsequently invited by her to develop artistic projects at the Queen Elisabeth Music Chapel and be one of the founding members of the Partitura Project.

Since then Maria and Julien have performed together in numerous concerts across the world, including with the Warsaw Philharmonic Orchestra at the prestigious Chopin Festival, the L'Opera di Firenze in the Great Artists Series, the Sheldonian Theater (Oxford) and Alfredo Kraus Auditorium (Las Palmas). In addition, they have contributed to the influence of classical music in society, particularly in India. Additional aims of the Partitura Project are to also transport music and art to unusual places, run workshops in the community and pioneer educational projects for children in difficulty (such as the Equinox social choir project created by Maria João Pires - of which Julien has been actively involved). Highlights of the 17/18 season include recitals at the Festival Classique au Vert, Piano aux Jacobins and the Philharmonie de Paris.

His debut album was released in 2017 by Rubicon Classics and featured 24 Preludes Op. 28 and Sonata No. 2 Op. 35 by Frédéric Chopin. The recording was received with critical acclaim by the international press, notably BBC Music Magazine which called it “Spellbinding Chopin", gave it 5 stars and featured it as it’s ‘Instrumental Choice’ album of the month. Julien’s next album will be released in 2018, again on Rubicon Classics, and feature works by Ravel and Mompou.