John moved to Los Angeles two weeks after graduation from the University of Miami MUE [Music Engineering] program. A short period of freelance assisting concluded with a staff position at Sunset Sound/Sound Factory in Hollywood, where for five years he was exposed to many great engineers, producers, and artists.

After breaking out of assisting, John worked with a wide range of producers including Mitchell Froom, Joe Chiccarelli, Byron Gallimore, Celso Valli, and Stephen Duffy. He won a Latin Grammy for his work with artist/producer Soraya.

In addition, John has produced or co-produced projects for The Black Mollys, Mitchell Froom, Lustra, Robbie Williams, The Lilac Time, and many other artists. He has also co-written songs with artists and has written pieces for TV and film.