On 29 May 2015, Belfort announced the signing of Couturier.
On 16 June 2016, Couturier joined French club Chambly.
Couturier played for Les Herbiers as they reached the final of the 2018 Coupe de France, facing his former teammates from Chambly in the semi-final. On May 8, 2018, he played as PSG won 2-0 to clinch the 2017-18 Coupe de France with goals from Edinson Cavani and Giovani Lo Celso.
Couturier joined Dudelange in the summer of 2018 signing a two year contract with the option of a third year. He played in the 2018 UEFA Champions League qualifiers against MOL Vidi FC scoring a goal and he played in the Luxembourgers successful run to the UEFA Europa League group stages as they beat CFR Cluj and Legia Warsaw.