He is on the books of FC Espoo and wears shirt number 23. His main role on the pitch is Defender.

His latest transfer saw him join FC Espoo from Poxyt via on 2025-01-01.

Across the Finnish Ykkonen 2024, eetu massinen appeared in 3 matches and averaged 0 tackles, 0 interceptions, 0 clearances, and 0 blocked shots per game.