[1] Cârjan played over 20 years for Unirea Tricolor București, winning the 1940–41 Divizia A title as a player-coach.
[1][2][3] Cârjan, together with the club's president Valeriu Negulescu and player-secretary Constantin Anghelache opposed the merger.
[1][2][3] After finishing his sentence, because of his refusal to collaborate with the Communist regime, Cârjan was forced to work for four years at the cutting of the common reed from the Danube Delta.
[2][3] After his death, in 1978, Cârjan's former player from Unirea Tricolor, Constantin Anghelache, who kept all his of his writings, released in 1996 the volume named În slujba unui rege – fotbalul (In the service of a king – football), which is a romanced presentation of Unirea Tricolor's history.
[4] He also had a manuscript which he wrote during his period spent as coach at Universitatea Cluj, which was released in two volumes.