Devine was the Braves' first selection in the first round of the 2005 Major League Baseball draft out of North Carolina State University, where he had set the Wolfpack record for saves with 24. After being drafted, Devine spent only two months in the minor leagues, pitching with the Single-A Advanced Myrtle Beach Pelicans and the Double-A Mississippi Braves, before being called up to the major leagues on August 20. Devine encountered early struggles once being called up to the major leagues, becoming the first pitcher in major league history to allow a grand slam in each of his first two games. Braves manager Bobby Cox showed faith in Devine, however, by including him on the postseason roster despite his pitching only five innings with the big-league club during the regular season. In the 18th inning of Game 4 of the 2005 National League Division Series, Devine gave up a walk-off home run to Houston Astros rookie Chris Burke to end the Braves' season. In, Atlanta planned to have Devine start the season at Triple-A Richmond as the closer, but injuries to Horacio Ramírez and Blaine Boyer forced the Braves to call him up along with fellow reliever Ken Ray. Devine struggled once again, however, pitching a total of one inning in two games against the San Francisco Giants and giving up seven runs on five hits, five walks, and two wild pitches. Devine was optioned back to Richmond afterwards, with Peter Moylan serving as his replacement in Atlanta's bullpen. Devine was called up again in September and continued to pitch in Atlanta until the end of the regular season. Baseball America rated Devine as the Braves' ninth-best prospect entering. Devine spent the majority of the 2007 season at Mississippi, though he was called up by Atlanta several times. On September 22, Devine earned his first major league victory against the Milwaukee Brewers. He finished the 2007 season 1-0 with a 1.08 ERA.
Oakland Athletics
On January 14,, Devine was traded to the Oakland Athletics along with minor league pitcher Jamie Richmond for center fielderMark Kotsay. Devine had a breakout season with the Athletics in ; in 45 innings, Devine gave up just 23 hits, walked only 15, struck out 49, held major-league batters to a.148 BA, and finished with a remarkable 0.59 ERA; the lowest ever in MLB history among pitchers with a minimum of 45 innings since ERA became an official statistic in. This record is not officially recognized because the MLB minimum is 50 innings. Devine missed the 2009 season following Tommy John surgery on his right elbow. The operation was performed Tuesday, April 21, 2009 by Dr. James Andrews on Devine's ulnar collateral ligament. On December 2, 2009, Devine, avoided arbitration and agreed to a 1-year contract with the Oakland Athletics. Devine remained inactive through the 2010 season while still recovering from the surgery. He finally returned to action in 2011. However, after struggling to find control in a flukish spring training game, Joey Devine was sent down to the A's Minor League Sacramento River Cats to work outthe kinks. He instantly regained his 2008 form and commenced to not allow a single earned run over his first 12 innings, striking out a solid 17, giving up only 4 hits, and walking a mere one batter. He was recalled to the Oakland A's Major League Roster on May, 20th 2011. Devines' longest streak of innings without yielding an earned run was broken on June 3, 2011, due to inherited runs acquired through reliever Brian Fuentes. After pitching relatively well after his return to the MLB roster in 2011, Devine struggled in late July during his last three outings of that month. On July 22, 2011, he walked three consecutive Yankees, throwing a wild pitch behind Brandon Laird to initiate the latter's debut major-league at-bat. His control issues lead to his being demoted back to Sacramento River Cats on July 28, 2011, despite the fact that many of the earned runs he had acquired to that point were inherited after he stepped off the mound. Prior to his last three outings, Devine was one of the leading pitchers on Oakland's MLB pitching staff statistically: 2.14 ERA and declining, over 9K/9 innings, and high octane pitch speeds of up to 97 MPH, with additional nasty off speed pitch movement in his slider, low hits/outs ratio, hitters average under.200, no homers allowed, and an average walk rate. Joey Devine has still not allowed an American League Home run in 83 innings. The last home run off Devine was earned while pitching for the Braves on April 7, 2006. It was announced on April 10, 2012 that Devine would have his second career Tommy John surgery. Devine was placed on the disabled list for the 2012 season.