Maiorino holds a BBA from Hofstra University and an MA from John Jay College of Criminal Justice. He began his career at John Jay College in the fall of 1998 as an adjunct in the Department of Physical Education and Athletics where he developed and taught the Air Pistol Shooting course.
In 2002 he accepted a full-time faculty position coupled with his appointment as head rifle coach. Over the next few years he developed and taught the popular Development of Weapons course and in 2006 published the definitive text for the course, A Condensed History of Weapons for the Individual. He has been cited by Dean’s List students for his support and counseling in both academic and career choice areas. In 2009, Maiorino presented his paper on “Nutrition for the Competitor” at Penn State University before a body of NCAA and Mid-Atlantic Conference coaches and athletes. The paper included a section dealing with the presence of NCAA banned substances in over-the-counter supplements.
As head rifle coach, Maiorino comes to John Jay College with over 35 years of rifle coaching experience, including 16 years of Division 1 collegiate coaching at St. John's University. Bringing a wealth of knowledge and experience to the program, Maiorino, who holds ratings as an international rifle coach and a certified rifle coach, is a former New York State Champion, and competitive shooter himself.  He earned his rifle certification at the United States Military Academy at West Point under two world class coaches; Frank Briggs and Web Wright. Maiorino had the opportunity to advance his coaching skills at the Olympic Training Center in Colorado Springs, CO. While at St. John's he coached twelve shooters who went on to win All-American awards and participated in as many NCAA Rifle Championships. During his seven years at John Jay College, the rifle team's ranking in the Mid-Atlantic Rifle Conference has elevated from the lowest division in both the air rifle discipline and small bore (.22 cal.) discipline to the second highest. With Maiorino as Head Rifle Coach, the rifle team has won four MAC Championships, finished second in two others, and was named the most improved team in both the air rifle and small bore disciplines. Additionally, the team has established new team records in both disciplines annually.