Junis has spent his nine-year career with five different franchises: the Kansas City Royals, San Francisco Giants, Milwaukee Brewers, Cincinnati Reds and most recently, the Cleveland Guardians.

He holds a career 4.36 ERA and 1.289 WHIP, but he has developed into a lights-out reliever over the last four seasons. Junis had pitched to a sub-three ERA in each of those seasons.

In 2025, Junis had a 2.97 ERA and 1.230 WHIP in 57 appearances.