He currently plays for Real Esteli, wearing the number 2 shirt. He plays primarily as a Defender. He stands at 172cm tall and weighs 52kg. His current market value is estimated at 125K €.

Throughout the Nicaragua Liga Primera 2026, F. Vallecillo featured in 11 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.