Hill played college football as a strong safety at Michigan State and was selected by the Arizona Cardinals in the seventh round of the 2001 NFL draft.

Hill was a three-year letterman (1998–2000) for the Michigan State Spartans, the first two years of which he played under former head coach Nick Saban.

Hill started all 35 games in which he played during that time at right cornerback, and concluded his career with 182 total tackles, 11 stops for loss, nine interceptions and 36 passes defensed.

He posted 66 tackles, two interceptions, 10 passes defensed, a sack and two fumble recoveries on the year, while also contributing 11 stops on special teams.

He collected a season-high 10 tackles against the San Diego Chargers when he came off bench in first quarter to replace an injured Duane Starks.

Hill's first career interception came against the Dallas Cowboys on October 20 when he picked off a Quincy Carter pass in the end zone during Arizona's 9–6 win.

Hill started all 14 games in which he played at cornerback in 2003, posting 67 tackles, five interceptions for 119 yards in returns including a touchdown, seven passes defensed, two sacks and a forced fumble.

His lone interception of the year occurred on October 24 against the Seattle Seahawks, as he picked off a Matt Hasselbeck pass in the Cardinals’ 25–17 victory.

Thanks in part to the contract holdout of rookie defensive back Jason Allen, Hill was able to win the starting free safety job before the regular season began.

He also returned a Chester Taylor fumble forced by Matt Roth 48 yards for a touchdown in the fourth quarter of a 24–20 win over the Minnesota Vikings.

During training camp, Hill initially lost his job to recently signed free agent Chris Crocker.

In Week 3, Hill got the free safety job once again, and it paid huge dividends as the secondary play became more solid and it also helped Miami earn its first victory of the season against the Patriots.

[6] On January 25, 2021, Hill was hired by the Los Angeles Chargers as their defensive coordinator under head coach Brandon Staley, whom he worked with in Denver.