Benjamin Nadjem

Nadjem began his youth career with SC Concordia. Nadjem played also in the youth of FC St. Pauli before making his debut for the second team of St. Pauli.

FC St. Pauli II

Nadjem played three games in the 2013–14 season with FC St. Pauli II. In his second season he became a regular starter for the team and played 24 games and received 3 yellow cards. In his 3rd season he played 25 games and received six yellow cards. In the 2016–17 season he made his first assist.

Meiendorfer SV

On 9 January 2020, it was confirmed, that Nadjem had joined Meiendorfer SV in the Oberliga Hamburg.

Nadjem was called up in January for the Afghanistan national team. He made his debut for Afghanistan in a 2–1 friendly win over Singapore on 23 March 2017.