Oscar Zambrano was born and raised in Mexico City. After graduating from Berklee College of Music in 2003, he moved to New York where he started working at Sound on Sound. In 2004 he and Jorge Castellanos founded Zampol Productions, a recording studio that focuses on mastering, mixing, and recording. Throughout his career, albums Oscar has worked on have won 3 Grammy awards, been nominated for 11 additional Grammys, and have earned multi-platinum status through the RIAA.

Oscar has worked with Esperanza Spalding, Harry Styles, Sting, Kelly Clarkson, Zoe, Justin Timberlake, Pablo Ziegler, Miley Cyrus, Max Richter, Winton Marsalis, DJ Khaled, Marco Antonio Solis, Pedro Giraudo, Nass, I’m With Her, Death Cab for Cutie, Miguel, Arizona, Prince Royce, The Shins, La Santa Cecilia, Blake Shelton, Rascal Flats, War on Drugs, Belanova, Phoenix, Train, Portugal The Man, Wyclef Jean, Arcade Fire, Jack Jo