Mike Schroepfer, chief technology officer, Facebook has decided to step down, he posted on Facebook that Andrew Bosworth who heads the company’s social media and virtual reality efforts, will take over the role in 2022.

Schroepfer was there with Facebook for 13 years and said he would transition to a part-time role as the company’s first Senior Fellow sometime next year. Zuckerberg said Schroepfer’s new role would include helping the company recruit and develop technical talent and foster investments in artificial intelligence.

“As our next CTO, Boz will continue leading Facebook Reality Labs and overseeing our work in augmented reality, virtual reality and more, and as part of this transition a few other groups will join Boz’s team as well,” CEO Mark Zuckerberg said in a message to employees that was posted on Facebook’s blog.

“This is all foundational to our broader efforts helping to build the met averse, and I’m excited about the future of this work under Boz’s leadership,” he said, referring to the Silicon Valley idea of shared spaces that merge the digital and physical worlds and can be accessed through different devices.

Other central leaders who have left the company in recent months include the head of Facebook’s main app, Fidji Simo, who left to become Instacart CEO, and global ads chief Carolyn Everson, who was hired as the start-up’s president.