After more than 12 years at YouTube, Robert Kyncl announced on Monday that he is leaving the leading social video platform.

Mary Ellen Coe, Google's president of global customer solutions, will take over as YouTube's Chief Business Officer starting in early October. To assist with the transition, Kyncl will temporarily stay at YouTube.

YouTube CEO Susan Wojcicki thanked Kyncl on Twitter. ″We owe so much of our growth and impact to your leadership,” Wojcicki wrote. “I’m excited to welcome Mary Ellen Coe as YT’s new CBO. Mary Ellen’s career at Google has been dedicated to making partners more successful and I know she’ll do the same for creators, partners and users @YouTube!”

Kyncl joined Google’s video platform after nearly eight years as vice president of content at Netflix.

Mary Ellen Coe has been working with Google since 2012. Prior to her tenure with the search giant, she was a partner at McKinsey.

Ellen also served on the boards of the grocery chain Whole Foods Markets and the global pharmaceutical company Merck.