Mem was a late starter, learning how to play at the age of 13. He began his career with French club Eaubonne, where he played until he was 15 years old. The following two seasons he was at Pôle Espoirs before one season at Saint Gratien. He made the jump to the handball elite at the age of 17 and in the 2015–16 season he made his debut with Tremblay. In his first season in the LNH, Mem scored 93 goals in 25 games. Prior to that, he had already tasted top competition, becoming a European champion with the U18 French National Team. Mem signed with FC Barcelona for six seasons, beginning in 2016–17.[2]
There, he has won the Liga ASOBAL, Copa ASOBAL and Copa del Rey de Balonmano treble for seven consecutive seasons.
