[1] Hynson spent the 2009 to 2011 seasons as the co-offensive coordinator and wide receivers coach at Yale.
[2] On June 29, 2012, Hynson joined Montana under the roles of special teams coordinator and tight ends coach.
[5][6] On December 30, 2015, Hynson was hired to serve as the wide receivers coach for the Hawaii Rainbow Warriors.
[7][8] Hynson previously served as the wide receivers coach & pass game coordinator for the Oregon State Beavers and was the interim head football coach for the team's bowl game during the 2023 season.
[9][10][11][12][13] On February 3, 2025, the Tampa Bay Buccaneers hired Hynson to serve as their pass game coordinator.