[8] Hansen made his debut for the Arizona League White Sox and spent time with both the Great Falls Voyagers and Kannapolis Intimidators[9] during the 2016 season, posting a combined 1.32 ERA with 81 strikeouts in 54+2⁄3 innings between the three clubs.
He spent 2017 with Kannapolis, the Winston-Salem Dash, and the Birmingham Barons, going 11–8 with a 2.80 ERA with a 1.17 WHIP in 26 games started between all three teams.
[10] Hansen was unable to maintain his 2017 production the following season however, struggling to a 6.31 ERA in 14 starts between Winston-Salem and Birmingham.
In 2019, Hansen again spent the year with Winston-Salem and Birmingham, pitching to a 4.64 ERA with 66 strikeouts in 52.1 innings of work across 39 appearances.
Hansen did not play in a game in 2020 due to the cancellation of the minor league season because of the COVID-19 pandemic.