Signed as a free agent by the Toronto Argonauts on February  21, 2013.

2012: Signed as an undrafted free agent by the New York Giants (NFL) on April 29 and released on August 13.

Played two seasons at Tennessee (2009-10) and one season at McNeese State (2011)… 2011 (McNeese State) Transferred to McNeese State from Tennessee…Played in three games totalling 32 tackles, five pass deflections and three interceptions including a pick-six… 2010 (Tennessee) Played in 13 games contributing 69 total tackles and five interceptions with six pass deflections…Returned five punts for 14 yards and one kickoff for 47 yards… 2009 (Tennessee) Played in 10 games totaling one interception.

Janzen Jackson is the son of Lance Guidry who played and coached at McNeese State.  Jackson has a son named Ethan.