Houston's first draft choice of 2008 (eighth overall), the catcher from Stanford was called up in June of 2010 for his first big league action, hitting a single in his first at bat and belting an upper-deck homer in just his third game. However, he cooled off to a .205 average in his first year. Jason sat out the 2011 season with a knee injury but returned in 2012 to bat .257 in 66 games.

In 2013, Jason hit .276 with 18 homers and was named to the All-Star team. The popular backstop played in Houston through 2016, posting a .232 average with 62 homers over six seasons. He then played three seasons for the Twins. For his career, the Californian has batted .231 with 86 homers through 2019.