He currently plays for Atletico de Madrid B, wearing the number 4 shirt. He plays primarily as a Defender. His current market value is estimated at 800K €.

His most recent move was a from Atletico de Madrid U19 to Atletico de Madrid B on 2023-07-01.

Throughout the Primera Federación 2025-2026, Javier Boñar featured in 24 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.