Born near Paris in 1982, Just got his master in cinema at Paris's University. He already directed 4 short films, the last one, Ses Souffles, has been pre-nominated for best short movie's César in 2016. He also has co-directed a documentary called "Gildas has something to tell us" in 2016 which has been diffused by Arte. He has worked with schools on multiple occasions, helping young people to discover the way to make a movie. He is now working on the treatment of his feature film Vivants! which got him a Beaumarchais-SACD financial aid.