Maccario will serve as an assistant coach after spending three seasons as a graduate assistant coach at DeSales University in Pennsylvania.

In three seasons at DeSales Maccario served as the defensive coordinator for the Bulldogs, worked with the team's goalkeepers, and coached the Bulldogs' faceoff specialists last year. In 2017, DeSales finished 10th nationally in man-down defense (.830), 23rd in caused turnovers (11.0 ct/g) and 42nd in scoring defense (8.47).

During his time with the Bulldogs, Maccario helped coach 18 all-conference selections including the Freedom Conference Rookie of the Year (Frank Krug - 2017). Krug led NCAA Division III in caused turnovers in his last season (4.14. ct/g).

Prior to his stint at DeSales Maccario spent one season (2014) as the defensive coordinator at Wheeling Jesuit, helping the Cardinals to a 10-3 record and a spot in the ECAC semifinals. Wheeling Jesuit finished with seven all-conference selections in 2014.

A former standout defender for the Cardinals, Maccario was a four-year starter and three-year captain at Wheeling Jesuit. He led all NCAA Division II players in caused turnovers in 2012 and earned all-conference honors twice.

A 2013 graduate of Wheeling Jesuit with a degree in business, Maccario earned his masters in business administration from DeSales in 2016.