He has also been a member of the Tampa Bay Buccaneers, Arizona Cardinals, Washington Redskins, Oakland Raiders, New Orleans Saints, Indianapolis Colts, and DC Defenders.

Coming out of South Carolina, Swearinger was projected to be a second or third round pick by the majority of NFL draft experts and scouts.

On March 27, 2013, he participated at South Carolina's pro day, along with Marcus Lattimore, Devin Taylor, Ace Sanders, T. J. Johnson, Justice Cunningham, DeVonte Holloman, Akeem Auguste, and ten other prospects.

Head coach Gary Kubiak named him the third free safety on the Houston Texans' depth chart to begin the regular season.

[14][15][16][17][18] He made his professional regular season debut in the Houston Texans' season-opener against the San Diego Chargers and recorded two solo tackles in their 31-28 victory.

On October 13, 2013, he recorded two solo tackles and the Texans' starting strong safety Danieal Manning was injured with a hairline fracture of his right fibula during a 13-28 loss to the St. Louis Rams.

The following week, Swearinger earned his first career start in place of Manning and recorded five solo tackles in a 16-17 loss to the Kansas City Chiefs.

He finished his rookie season with a total of 71 combined tackles (54 solo), made four pass deflections, and an interception in 16 games and ten starts.

[20] Swearinger competed with Eddie Pleasant for the vacant starting strong safety job after Daniel Manning departed during the off season via free agency.

New Houston Texans' head coach Bill O'Brien named Swearinger the starting strong safety to begin the 2014 season.

[21] The next preseason, Swearinger was involved in a hit that caused a concussion on Denver Broncos wide receiver Wes Welker.

[23] He started the Houston Texans' season-opener against the Washington Redskins' and recorded eight combined tackles and his first career sack on Robert Griffin III during their 17-6 victory.

[26] It was reported they had attempting to trade Swearinger the past few weeks, the main cause being his reluctance to play special teams.

Head coach Lovie Smith named him the backup strong safety to Major Wright to begin the regular season.

During his stint in Tampa Bay, Swearinger was limited to 12 combined tackles (seven solo) in seven games and primarily played on special teams.

[12] He entered his first training camp with the Arizona Cardinals and competed with Tony Jefferson, Tyvon Branch, and Marqui Christian for the job as the starting safety.

On October 6, 2016, he earned his first start of the season and collected seven combined tackles, deflected a pass, and sacked San Francisco 49ers' quarterback Blaine Gabbert in their 33-21 victory.

[40] Swearinger started the Washington Redskins' season-opener against the Philadelphia Eagles and made five solo tackle and deflected a pass during their 17-30 loss.

[41] Swearinger had an impressive outing in a Week 2 loss against the Indianapolis Colts, intercepting quarterback Andrew Luck twice to go along with 2 pass deflections.