In 2012, Aguilar was sent on loan to Club Tijuana. He started in 20 matches for the club during the Apertura tournament, which Tijuana won, defeating Toluca in the final, even scoring one of the goals himself.
As of 3 June 2015, Aguilar has played in 22 games with the Paraguay national team, scoring four times. He scored his first goal on 17 October 2012 in the 1–0 victory against Peru.