Jason Guadagnino is in his ninth season as an assistant coach at Mercy College. His duties include third base coach, coordination of recruiting and assisting with the pitching staff, equipment, field maintenance, practice sessions, skill instruction, and game day operations.

Guadagnino pitched at both Mercy College and Manhattan College. He continues to play semi-professionally with the Verdero Collegians of the Westchester Baseball Association. Guadagnino has also pitched for the Marbella Stars in Spain.

He has instructed at various clinics and camps in the New York Metropolitan area. Guadagnino spent eight years working at the New York Mets Baseball Academy, and four years at the Hardball, N.Y., baseball camp.  Guadagnino also spent one year instructing at the Rockland Community College baseball camp.

Guadagnino has worked as a player-coach with the Verdero Collegians, where he was in charge of in-game coaching as well as the pitching staff. In addition to coaching the Collegians, Guadagnino served as the assistant coach of the Pro Swing Pride 17U team.  With the Pride, Guadagnino's duties included coordination of the pitching staff, field maintenance, practice sessions, skill instruction, and game day operations.  Under Guadagnino's tutelage, the Pride finished the year with a 15-18-2 record, including a 5^th place finish at the New Era Cap Classic in Buffalo, NY, a second place finish at the 2^nd  Annual Hudson Valley Elite Summer Series, and the Pelican Division Championship at the Triple Crown Sports 18u National Championships, held in Myrtle Beach, South Carolina.

Guadagnino attended Spring Valley High School, where he was a standout in baseball, basketball, and soccer, earning the 1997 U.S. Marine Corps Male Athlete of the Year. He is currently employed by his alma mater as a special education science and social studies teacher. Guadagnino is a 2001 graduate of Manhattan where he earned a bachelors degree in education with a concentration in history and went on to earn a masters degree in special education.  He and his wife Gina currently reside in Stony Point, NY.