Ellen Brin joined the San Francisco Sheriff's Department in 1986. In 1994, she was promoted to the rank of Sergeant and was appointed Classification Coordinator, where she developed and implemented the Department's objective classification system. She continued to rise through the ranks and in 2010 was promoted to the rank of Chief Deputy and served as the Custody Division Chief. She is now second in command to Sheriff Ross Mirkarimi since her appointment to Undersheriff in early 2012. Ellen has been a member of the Emergency Services Unit for 24 years and, in that capacity, responded to many major crises including the Loma Prieta earthquake. She is proud to work with such a diverse group of people responsible for the daily operations of the Sheriff's Department.
Born and raised in Northport, Long Island, Ellen relocated to San Francisco in 1982. She resides with her partner in an historic neighborhood of San Francisco in the home that she thoroughly restored to its original Victorian architecture.