[citation needed] Hill was hired by the NFL in 2010 and made his first appearance during a September 12, 2010, game between the Washington Redskins and Dallas Cowboys at FedExField as a line judge.

Hill made unwanted headlines during a January 3, 2021, game when he called a roughing-the-passer penalty against Detroit Lions safety Tracy Walker after he sacked Kirk Cousins of the Minnesota Vikings on a 4th and goal play.

Both social media and mainstream media outlets covered the call with headlines such as "Tracy Walker's phantom personal foul penalty causes uprising on social media" (Detroit Sports Nation),[9] "NFL fans could not believe the horrendous, game-changing roughing call from Lions-Vikings" (USA Today),[10] "Detroit Lions robbed by one of the worst calls ever in game vs. Minnesota Vikings" (Detroit Free Press),[11] "Ridiculous roughing call on Kirk Cousins sack sets up Vikings' game-winning TD" (Yahoo Sports),[12] "Lions flagged for roughing passer against Vikings on simple sack, befuddles fans" (Fox News)[13] and "Worst Call in NFL History Aids Vikings in 37-35 Win against Lions" (Sports Illustrated).

In 2000, he was hired as an aerospace software engineer at the Johns Hopkins Applied Physics Laboratory Space Exploration Sector.

He was the flight software lead on MESSENGER and had important roles on the New Horizons mission and the Parker Solar Probe.

[16] He was the lead author of Command and Data Handling Flight Software test framework: A Radiation Belt Storm Probes practice, a paper presented at the 2013 IEEE Aerospace Conference.