John grew up in the Philadelphia area and began his hockey journey with the Glaciers, playing two years at the Mite level and one year as a Squirt before moving on to Tier 1 hockey with the Little Flyers, New Jersey Rockets, and Valley Forge Minutemen.

He attended LaSalle College High School for one year, playing under renowned coach Wally Muehlbronner, before transferring to Lawrence Academy in Groton, Massachusetts—part of the elite Independent School League (ISL). At Lawrence, John was a standout athlete in hockey, football, and lacrosse, serving as captain of all three teams his senior year.

Following high school, John played junior hockey with the New Hampshire Junior Monarchs, helping the team capture the EJHL League Championship. He then continued his career at Babson College, where he had an exceptional four-year run. John became only the 13th player in Babson history to score 50 career goals and served as team captain in both his junior and senior seasons. During his junior year, he led the team to a remarkable ECAC East league championship run and secured the school’s first NCAA tournament bid since the early 1990s.

After college, John spent a year and a half playing professionally in the minor leagues (A and AA levels), suiting up for the Richmond Renegades, Reading Royals, Dayton Bombers, and Evansville Icemen.

Following his playing career, John returned to the game he loves through coaching. He began with the Minutemen, leading the 2000 Squirt Major and 1996 Bantam Major teams. He later coached the 2004, 2006 and 2010 birth year teams. The 2004 team won multiple league and district championships, with six players going on to play or commit to Division 1 college hockey. His 2006 team has consistently been a district and playoff contender, producing two Division 1-committed players. John also serves as a coach for the Atlantic District Player Development Program, helping to shape the next generation of elite talent.