In week ten of the 2018 season, Swilling recorded his first career interception, as he helped Georgia Tech beat North Carolina.[3] Swilling finished the 2018 season with 24 tackles with 1.5 going for a loss, a sack, six pass deflections, an interception, and a forced fumble.[4] In week one of the 2019 season, Swilling broke up a pass and intercepted a pass off of quarterback Trevor Lawrence returning it 41 yards, but the Yellow Jackets would fall against Clemson.[5] Swilling finished the 2019 season with 23 tackles with two being for a loss, ten pass deflections, an interception, and a fumble recovery.[6] For his performance on the season, Swilling was named an All-ACC Honorable Mention.[7] In the 2020 season, Swilling recorded 21 tackles, a pass deflection, a fumble recovery, and a forced fumble.[8] In the 2021 season, Swilling notched 33 tackles with two being for a loss, a sack, and four pass deflections.[9]
Swilling finished his Georgia Tech career with 101 tackles with 5.5 going for a loss, two sacks, 21 pass deflections, two interceptions, two fumble recoveries, and two forced fumbles.[10]
On September 12, 2022, Swilling was signed to the New Orleans Saints practice squad.[14] He was released on October 4, 2022.[15]
San Francisco 49ers
On December 20, 2022, Swilling was signed to the San Francisco 49ers practice squad.[16] He was released on December 27, 2022.[17] On February 6, 2023, Swilling was re-signed to the 49ers to a reserve/future contract.[18] He was waived on August 29, 2023, but was re-signed to the practice squad the next day.[19][20] On September 16, 2023, Swilling was elevated from the practice squad to the active roster after cornerback Samuel Womack was placed on the injured reserve due to an MCL injury.[21]
Baltimore Ravens
On October 3, 2023, Swilling was signed to the Baltimore Ravens practice squad.[22] He signed a reserve/future contract on January 29, 2024.[23] He was waived on July 22.
New York Jets
Swilling was signed by the New York Jets on August 2, 2024.[24] He was waived on August 27, and re-signed to the practice squad.[25][26]