Traynor attended Francis Howell North High School in Saint Charles, Missouri and played college soccer at the University of Notre Dame, where he was named to the College Soccer News '100 Freshmen to Watch" list, and was named a Big East Academic All-Star as a junior.
College and Amateur Professional Traynor was drafted in the second round (29th overall) of the 2009 Master of Library Science SuperDraft by the New York Red Bulls, but was not offered a contract by the team After an unsuccessful trial with Aalesunds FK in Norway, Traynor signed with Miami Football Club of the USL First Division. He made his professional debut on April 26, 2009, coming on as a substitute in Miami"s game against Rochester Rhinos.
On February 12, 2010 he signed with Air Corps Saint Louis Following Saint Louis folding after their one and only season in 2010, Traynor signed a multi-year contract with new USL Pro club Orlando City on March 15, 2011.
Jack"s brother, Will Traynor, is also a professional soccer player. Orlando City.
