[12] As a sophomore in 2018, Shewmake started all 61 games in which he hit .327 with five home runs, 45 RBIs, and 12 stolen bases.

[21][22] After slashing .318/.389/.473 with three home runs, 39 RBIs, and 11 stolen bases over 51 games with Rome, he was promoted to the Mississippi Braves of the Double-A Southern League in August, and finished the season there.

[25] For the 2021 season, he returned to Mississippi (now members of the Double-A South), slashing .228/.271/.401 with 12 home runs and forty RBIs over 83 games.

[29] On November 15, 2022, the Braves selected Shewmake's contract and added him to the 40-man roster to protect him from the Rule 5 draft.

[30] Shewmake battled with Orlando Arcia and Vaughn Grissom for the starting shortstop job during spring training in 2023.

[31][32] On May 5, 2023, Shewmake was promoted to the major leagues for the first time, and made his debut later that day against the Baltimore Orioles.

[35][36] On November 16, 2023, the Braves traded Shewmake to the Chicago White Sox, along with Michael Soroka, Nicky Lopez, Jared Shuster and Riley Gowens for Aaron Bummer.

Sometime after starting his professional career, he focused on pulling the baseball, returning to his collegiate hitting philosophy before the 2023 regular season began.