He currently plays for CSKA 1948 Sofia, wearing the number 70 shirt. He plays primarily as a Defender. His preferred foot is Left. His current market value is estimated at 250K .

His most recent move was a from PFK Montana to CSKA 1948 Sofia on 2026-07-01.

Throughout the Bulgarian First League 2025-2026, kostadin iliev featured in 23 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.