nadeau made his international debut in the 2014–2015 season, being selected to compete on the isu junior grand prix (jgp) series. he placed fifth at his first jgp event, in aichi, japan, and tenth in zagreb, croatia. he became the national junior champion at the 2015 canadian championships in kingston, ontario. this earned him a berth to the 2015 world junior championships in tallinn, estonia but he missed qualifying for the free skate by one spot, having placed 25th in the short program.