In 2010, aged 18, he joined the youth ranks of Spanish club Rayo Vallecano, scoring 23 goals in 25 games in his last year as a junior.

[4] Bangoura appeared in four Segunda División matches with the first team in the 2010–11 season, as the Madrid side returned to La Liga after an eight-year absence.

[1] Bangoura made his debut in Spain's top division on 28 August 2011, playing 31 minutes in a 1–1 away draw against Athletic Bilbao.

[10] On 31 January 2016, Bangoura was loaned to Ligue 1 club Stade de Reims until the end of the season.

[15] On 23 January 2019, Bangoura joined Major League Soccer side Vancouver Whitecaps FC on a one-year loan deal.