Starting in 2002, Waldron served as an operations intern for the New England Patriots for two seasons before being promoted to operations assistant in 2004, where he handled special teams quality control duties and oversaw the completion of the weekly game plans.[3]
In 2016, Waldron was hired by the Washington Redskins as an offensive quality control coach.[7]
Los Angeles Rams
On February 2, 2017, Waldron was hired to be the tight ends coach for the Los Angeles Rams, under new head coach Sean McVay.[3]
On January 30, 2018, Waldron was named passing game coordinator, after Matt LaFleur became offensive coordinator for the Tennessee Titans. Head coach Sean McVay promoted offensive line coach Aaron Kromer to run game coordinator and Waldron to passing game coordinator in order to help fill the void.[3] In 2019, Waldron was promoted to quarterbacks coach after Zac Taylor was named head coach of the Cincinnati Bengals.[3]
On January 23, 2024, Waldron was officially hired by the Chicago Bears as their offensive coordinator under head coach Matt Eberflus, replacing Luke Getsy.[9] The Bears fired Waldron nine games into his tenure on November 12 after the team reached a 4–5 record midway through the season. The Bears ranked 30th in the league in total offense and 24th in scoring at the time of his dismissal.[10][11]
Jacksonville Jaguars
On February 6, 2025, the Jacksonville Jaguars hired Waldron to serve as their pass-game coordinator.[12]