Guillaume trained in various structures such as the CRD, Force Jazz Dance Cie, then entered the Conservatoire National Supérieur de Musique et de Danse (CNSMD) of Lyon in 2014. He joined the CNSMD Young Ballet in September 2017.
He joined the company of the CCNR/Yuval Pick when Acta est fabula is revived in June 2018. Today, still performing in some pieces of Yuval Pick, he is also a transmitter of his method Practice.
In 2021, he joined the company Ma’, directed by Marion Alzieu and the company Vigousses, co-directed by Thibault Desaules and Zoé Lecorgne. Finally, he directs La Fiévreuse, in which he works on his two first creations, presented during the 2022/2023 season.