Gillier made his debut with the first team in a friendly match against the Argentine club River Plate on 9 September 2023.
[1][2] At league level, Gillier made his professional debut in a match against Ñublense on 23 February 2024.
[3] Giller was born in Las Condes, Santiago city, Chile, to a French father and a Chilean mother, both died in 2024.
His mother, Claudia Correa Bilbao, was a noted plastic artist and his father was a political scientist.
[1] This biographical article related to a Chilean association football forward is a stub.