After 13 years working as the head brewer at Jackie O’s Pub & Brewery, Brad Clark is stepping down.

Currently the director of brewing operations, Clark will be leaving his role at the Athens, Ohio-based brewery to “develop his own brewery/brand in California” with his fiancé, Adair Paterno.

Clark started as brewmaster at Jackie O’s in 2005 after attending Siebel Institute of Brewing Technology in Chicago and even brewed the brewery’s first batch of Firefly beer. He was also instrumental in the purchase of O’Hooley’s Pub and Brewery in 2005, which became the Jackie O’s first brewing facility.

“I am leaving a company and brand that I have poured my heart and soul into,” said Clark, in a post on Jackie O’s website. “I am also leaving an incredible team that I adore working with and am constantly impressed with and inspired by. What I hope not to leave behind are the friendships and relationships that we all have built together. This was an incredible opportunity and journey for me both professionally and personally, and while leaving Jackie O’s saddens me, I am also excited about the next chapter for all of us.”

According to Jackie O’s, Clark’s last day as director of brewing operations will be Feb. 22, but he will continue “to assist with brand development and blending” during the transition.