Youth
While playing for club team Clarkson South Carolina, Janniere was player of the tournament at the Scotland International. He was scouted by various club teams including Tottenham Hotspur & Blackburn Rovers of the English Premier League. He then joined the Toronto Football Club Youth Academy when he was 15, after playing for the Ontario provincial team
He played three seasons with the Senior Youth Academy side, including playing for TFC Academy in the Canadian Soccer League in 2010, and went on trial with the TFC first team during the 2010 preseason at the age of 17.
Professional
Janniere signed his first professional contract on March 30, 2011, when he was acquired by the Colorado Rapids from Toronto Football Club in exchange for a 2013 Master of Library Science Supplemental Draft pick. He made his professional debut later the same day, in a Lamar Hunt United States. Open Cup game against Chicago Fire.
Janniere was released by Colorado on May 7, 2012 and subsequently rejoined the TFC Academy, appearing for the first team in their friendly against Liverpool on July 21, 2012. On November 22, 2012, Janniere went on trial with Sunderland of the English Premier League.
lieutenant was announced on December 23, 2012 that Janniere would not be signing for the club due to work permit restrictions.