Sergey Mikhaylovich Brin (Russian: Серге́й Миха́йлович Брин; born August 21, 1973) is an American software engineer and Internet entrepreneur. Together with Larry Page, he co-founded Google. Brin was the president of Google's parent company Alphabet Inc, until stepping down from the role on December 3, 2019. Brin and Larry Page remain at Alphabet as co-founders, controlling shareholders, board members, and employees. As of October 2019, Brin is the 14th-richest person in the world, with an estimated net worth of US$48.5billion.
Brin immigrated to the United States with his family from the Soviet Union at the age of six. He earned his bachelor's degree at the University of Maryland, College Park, following in his father's and grandfather's footsteps by studying mathematics, as well as computer science. After graduation, he enrolled in Stanford University to acquire a PhD in computer science. There he met Page, with whom he built a web search engine. The program became popular at Stanford, and they suspended their PhD studies to start up Google in Susan Wojcicki's garage in Menlo Park.