John was born in Los Angeles in 1974 and grew up in Oakland. He attended the University of California, Berkeley. There, he earned his B.A. with a double major in English and legal studies in 1997. He also won four varsity letters in baseball, starting three years and finishing his senior year with a .341 batting average. He then went to Santa Clara University School of Law, receiving his J.D. in 2000. During his last semester of law school, he externed with U.S. District Court Judge Spencer Williams in San Jose.

Experienced in diverse civil litigation matters, John has been practicing in California since December 2000.

He volunteers at various Bay Area Workers Rights Clinics, an activity he has enjoyed since his first year of law school.

In his spare time, John enjoys baseball, tennis, and photography.