In September 2015 it was announced that he would join ONE Pro Cycling for the 2016 season.[6] In June 2017, he was named in the startlist for the 2017 Tour de France.[7] In stage six of the race, he was part of the sprint for the finish line and given the same time as the winner, Marcel Kittel.[8] In August 2019, he was named in the startlist for the 2019 Vuelta a España.[9]
In September 2022 it was announced that Smith would join team Intermarché–Circus–Wanty for the 2023 and 2024 season.[10]