At the international level, he represents Cyprus U21. He plays primarily as a Defender. His current market value is estimated at 125K €.

His most recent move was a from Enosis Neon Paralimniou to Asteras Aktor B on 2025-08-26.

Throughout the Greek Super League 2 2025-2026, Fotis Kotsonis featured in 10 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.