Shortly after moving to Los Angeles, Sonny landed an apprenticeship for British record producer, Flood. Excited by the experience and atmosphere of the studio, he went to London to work with Flood and Alan Moulder. Since returning to Los Angeles, he has worked in-house as a programmer and engineer for Trent Reznor, Dave Sardy, M83, David Longstreth and 30 Seconds To Mars.

As a producer and mixer, he has worked alongside artists such as La Femme, Animal Collective, Portugal. The Man, Emma Ruth Rundle, Protomartyr, The Drums, Dirty Projectors, Big Wild, STRFKR, Deradoorian, Hanni El Khatib, Avey Tare, מזמור [mizmor] and more.