Swedish mastering engineer, producer, mixer and studio manager, born on June 16, 1981 in Skärholmen, Stockholm, Södermanland.

Castillo is owner, founder and mastering engineer at [l269851], which was formerly known as Castillo Sound. Currently, he is also studio manager, producer, mixer and engineer at [l269709] in Stockholm studio, which studio name is [l283422].

The company '[l269709] AB' is co-owned by Jens Bogren and Jacek Sniecikowski, and the company '[l283422] AB' is co-owned by David Castillo and Jens Bogren.