He played college football for the NC State Wolfpack, and was selected by the Denver Broncos in the first round of the 2018 NFL draft.

Chubb was a hybrid linebacker-defensive end at Hillgrove High School, where he helped the Hawks advance to the Georgia 6A quarterfinals as a senior.

12 Florida State, ran to midfield at FSU's Doak Campbell Stadium and spat on the Seminole logo in an apparent act of disrespect.

After not eliciting a reaction after the first two, a Clemson offensive lineman held Chubb after the third time until he gave the towel back.

[24][25][26] During the 2018 NFL Scouting Combine, Chubb named Von Miller and Khalil Mack as players whom he models his play after.

Head coach Vance Joseph named Chubb and Von Miller the starting outside linebackers to begin the regular season.

[33] He made his professional regular season debut and first career start in the Broncos' season-opener against the Seattle Seahawks and recorded three combined tackles and was credited with half a sack during a 27–24 victory.

He made his first career sack with teammate Darian Stewart on Seahawks' quarterback Russell Wilson for a six-yard loss during the first quarter.

[35] On October 14, 2018, Chubb recorded five combined tackles and made a season-high three sacks on quarterback Jared Goff as the Broncos lost 23–20 against the Los Angeles Rams.

Later on, it was reported that Chubb had suffered a partial tear of the ACL in his left knee, which prematurely ended his 2019 season.

[46] In the 2020 season, Chubb appeared in and started 14 games, he finished with 7.5 sacks, 42 total tackles (26 solo), and one forced fumble.

[48] The Broncos exercised the fifth-year option on Chubb's contract on April 30, 2021,[49] with a guarantee salary of $12.72 million for the 2022 season.