Barron served as a Summer Associate for Conrad O'Brien between his second and third years of law school. While studying law at the University of Pennsylvania Law School, Barron served as the Editor-in-Chief of the Journal of Constitutional Law. He also worked as a certified legal intern at the Penn Legal Assistance Office, where he represented clients in a variety of civil litigation matters in Federal and State Courts, and assisted in the research, writing, and submission of an amicus brief to the Supreme Court of Pennsylvania.