Joy was an All-American end at Holy Cross, serving as the team's captain in 1911. He was hired as Boston College's head coach only a few months after graduating from Holy Cross, and in his second season with BC led the Eagles to their first winning season of the 20th century. After coaching in high school for several years, he returned to Boston College in 1921 as an assistant to Frank Cavanaugh. When Cavanaugh left BC in 1927, Joy followed him to Fordham where he remained as an assistant until 1932. From 1933-1938, Joy was the head coach at Canisius College.