[3] After redshirting his true freshman season in 2008 in which he was an ACC Academic Honor Roll member, Brown appeared in 11 games for the Clemson Tigers in 2009, had three catches for 30 yards in limited snaps.

[7] Brown was part of a talented Clemson wide receiver core in 2012, that included DeAndre Hopkins, Sammy Watkins, Martavis Bryant, Adam Humphries, and Charone Peake.

[8] On January 19, 2013, Brown appeared in the Raycom All-Star Classic and recorded six receptions for 63-yards to help the Stripes defeat the Stars 31–3.

[16] He was able to stand out enough and earn his spot as the fourth wide receiver on the depth chart to begin the regular season.

[19] Brown made his professional regular season debut in the Arizona Cardinals' season-opener at the St. Louis Rams and caught a 14-yard pass during their 27–24 loss.

On October 17, 2013, Brown caught a season-high three passes for 30-yards and scored his first career touchdown during a 34–23 loss against the Seattle Seahawks in Week 7.

[21][22] During training camp in 2014, Brown competed for a roster spot as the fifth wide receiver on the depth chart against Dan Buckner, Brittan Golden, Walt Powell, Kevin Ozier, and Kelsey Pope.

[32] On March 4, 2016, the Arizona Cardinals applied a low qualifying tender offer to Brown as a restricted free agent.

[15] Brown competed against Brittan Golden, Jaxon Shipley, and J. J. Nelson to be the fourth wide receiver throughout training camp.

[34][35] Head coach Bruce Arians named Brown the third wide receiver to begin the regular season after he had an impressive training camp.

[42][43] Throughout training camp, Brown competed against Chad Williams, Aaron Dobson, J.J. Nelson, and Brittan Golden to be the third wide receiver on the depth chart.

[15][45][46] Throughout training camp, Brown competed against Brandon Marshall, Amara Darboh, David Moore, Tanner McEvoy, and Marcus Johnson to be the No.

3 wide receiver on the depth chart to begin the regular season, behind Doug Baldwin and Tyler Lockett.

[49] On August 31, 2019, Brown was released by the Seattle Seahawks due to the recently signed Jadeveon Clowney to save cap space.

[54] Jaron was born in Ceiba, Puerto Rico, on Naval Station Roosevelt Roads to parents Norman and Regina Brown.

Recognition gained national attention as Brown was offered 8 full scholarships from Division I schools that included Tennessee, West Virginia, Kentucky, Michigan, Vanderbilt, Duke, South Carolina, and Clemson.