Roney was selected by the Baltimore Orioles in the 18th round of the 2011 draft out of high school in Alabama. He instead chose to attend college at the University of Southern Mississippi, and the Braves were able to select him in the 8th round in the 2014 draft.
He pitched for advanced rookie Danville in the Appalachian League to start his professional career, and in 18 relief appearances spanning 22 1/3 innings, he tallied a 4.03 ERA, 1.52 WHIP, and a 20/34 BB/K ratio.
In 2015, the Braves started Roney with Rome, and he struggled initially, and he was sent back to extended spring training with a 5.