Julien started his career at BETC euro RSCG, as a copywriter.
Then he worked for all the major french agencies as a free lancer : DevarrieuxVillaret, Publicis Conseil, Leo Burnett, TBWA.
In september 2006, he joined Publicis, as a senior copywriter at Publicis Net. In 2009, he became Creative Director at Publicis Net and in 2011 at Marcel Worldwide.
In 2015 he became ECD at BBDO Proximity. In 2017 Julien starts a new agency as ECD : Buy BBDO.
He is also global ECD for Mercedes-Benz France since 2016.
During his career in advertising, Julien has been in charge of a large span of national and international accounts: Fanta, Vichy Cosmétique, Renault, Peugeot, Petit Bateau, Thomson, ING Direct, AXA, Sanofi, Orange, eBay, Guigoz, Nestlé, Malibu, Pastis, Coca Cola, Banque Populaire, Intermarché, Conforama, Saint Maclou, Kiabi, Voyages-sncf, and Mercedes-Benz.
Julien has won more than 220 creative awards worldwide including 16 Cannes Lions (5 Gold, 4 Silver including a silver in creative effectiveness and 7 Bronze), D&AD (1 Black and 3 Yellow Pencil), D&AD Impact Black Pencil, One Show Green Pencil, Eurobest 2 Grand Prix, Clio, Epica, UDA, New York Festivals 3 Gand Prize and Best of show, FWA, Andy awards Grandy, LIA Grand Prix, ADC, Effie Gold Positive Change, Cristal 5 Grand Prix, Statégies 2 Grand Prix, French Art Directors Club...
Julien was also jury at the French Art Directors Club, LeBook, Eurobest and the New York Festivals.