Career
He is currently manager of Panama U-17. Cubillas spent the majority of his career with local side Tauro. In summer 2005, he went to play alongside compatriot Ángel Luis Rodríguez for Ecuadoran second division team Santa Rita.
His final international was a February 2005 UNCAF Nations Cup match against Guatemala.
International goals
Scores and results list Panama"s goal tally first. Cubillas was named manager of Tauro in April 2010, but was replaced by Rolando Palma in November 2011.
He took charge of Plaza Amador in January 2012 but was already dismissed in February 2012. In February 2014 Cubillas was appointed head coach of the Panama national under-17 football team