Dean began his youth soccer career at the youth teams of Palo Alto Football Club, Santa Clara Sporting FC and U.S. Soccer Development Academy club De Anza Force.[1] He was also selected into the National Academy Select 93 teams in 2009 and 2010 for the West and won the 2010 New York Red Bulls National High School Cup.[2] He then went on to attend the University of California, Berkeley where he played college soccer for the California Golden Bears.[1] During the 2013 season Dean was awarded All-Pac-12 and NSCAA Far West Region first-team honors as he led his team to the elite eight in the NCAA.[1]
On August 9, 2017, Dean was acquired by Chicago Fire in exchange for $50,000 of General Allocation Money as well as $50,000 of Targeted Allocation Money, and a percentage of any future transfer fees.[4] He announced his retirement on November 1, 2018.[5]
Charlotte Independence
On April 24, 2021, Dean returned to professional soccer after two years, signing a contract with USL Championship club Charlotte Independence ahead of the 2021 season.[6]
Dean trained with the United States U20 side in 2012.[1] Dean scored his first international goal for the U-23 team in a 30 friendly win over Mexico on April 22, 2015.[9]