Aveni began as a health and physical education teacher at Glassboro High School in 1960 during the football off-season.[1] Then, after retiring from professional football, he moved to Pitman, New Jersey and briefly worked as an insurance agent.[2] He then returned to Glassboro High School in 1965 as a teacher in business, health and physical education and a coach for football, basketball and golf.[1][2] Aveni became a student personnel adviser in 1971, then was named assistant principal in 1975 later, before becoming principal in 1985.[1] In 1976, he led the Glassboro football team to the South Jersey Group 1 championship as a rookie head coach. In 1983, he led the Bulldogs (South Jersey's only undefeated, untied football squad that season) to another Group 1 title. Running back Gordon Lockbaum later became a Heisman Trophy candidate at College of the Holy Cross.[1] After eight years as principal, Aveni became the director of special programs for the school district until he retired in 1997. He continued in education as an adjunct professor at Gloucester County College.[1]
Aveni was elected to The Gloucester County, NJ Sports Hall of Fame in 1983.