Born in
Décines-Charpieu,
Rhône-Alpes, Kader joined
Atlético Madrid's youth setup in 2009, aged 18. He made his senior debuts with
the reserves, spending several seasons in
Segunda División B. Kader made his debut with the
Colchoneros' first team on 19 August 2012, replacing
Sívlio midway through the second half of a 1–1
La Liga draw against
Levante UD. On 14 August 2014, Kader joined
Segunda División's
CD Numancia in a season-long loan. On 1 August of the following year he moved to
Club Africain, after agreeing to a three-year deal. ==International career==