Joyeux studied at the Garenne college in Gramat; from 2008 to 2015, she played with the JS Gramat club, 4,[2][3]
Spotted by CA Brive, she competed with Les Vaseix agricultural high school in Limoges, which won the French high school championship.[4]
She then played with the Limoges, then was spotted by the national coaches during an internship at the National Rugby Center in May 2016.[4]
She was selected in 2017 for the under 20 France national team, for a World Cup training course. In 2017, she joined women's Blagnac rugby.
In November 2018, she was one of the first 24 French rugby union players to sign a half-time federal contract.[5] Her contract is extended for the 2019-2020 season.[6]
She had her first cap for the French rugby union team on 2 February 2019 against Wales for the first day of the 2019 Women's Six Nations Tournament.[7]