He is on the books of Quilmes and wears shirt number 4. His main role on the pitch is Defender. His estimated market valuation currently stands at 175K €.

His latest transfer saw him join Quilmes from Ferrol Carril Oeste via on 2026-01-21.

Across the ARG Primera Nacional 2026, Martin Vallejos appeared in 3 matches and averaged 0 tackles, 0 interceptions, 0 clearances, and 0 blocked shots per game.