M'Changama joined
Oldham Athletic on 5 March 2012. He made his Latics, and
Football League, debut as a substitute against
Yeovil Town five days later, on 10 March 2012, making him the first Comorian ever to play for the club. In the
2021–22 season with
Guingamp, M'Changama was included in the
UNFP Ligue 2 Team of the Year, and won the award for the best goal of the season. He ended the campaign with nine goals and fifteen assists to his name. On 16 June 2022, it was confirmed that M'Changama had signed a two-year contract, with an option for a further year, with newly-promoted
Ligue 1 side
Auxerre. On 10 September 2025, M'Changama joined Saudi FDL club
Al-Batin. == International career ==