Facebook Chief Technology Officer Mike Schroepfer announced Wednesday he will be stepping down from his role.

Schroepfer will transition to a part-time role with the company. In 2022, he will be replaced as CTO by Andrew “Boz” Bosworth, who is currently the head of Facebook’s hardware division. Schroepfer informed Facebook of his intention to resign as CTO on Monday, according to a company filing.

“This is a difficult decision because of how much I love Facebook and how excited I am about the future we are building together,” Schroepfer wrote on his Facebook profile. He added that he would use his extra time for philanthropy and spending time with family. Bosworth congratulated Schroepfer on his “epic 13 year run.”

The change in leadership comes after a series of reports last week by The Wall Street Journal that shed light on how Facebook either ignores or fails to properly address numerous problems affecting users across its services. That includes the impact that Instagram has on the mental health of teenage girls as well as how Facebook is exploited by drug cartels in Mexico to recruit hitmen, among several other issues.

The elevation of Bosworth to CTO is an indication of the growing priority of hardware among Facebook’s future plans. Earlier this year the company indicated that the metaverse, which is a space in virtual reality where people can meet, will be a major focus for its Oculus division. This month, the company announced new smart glasses in partnership with Ray-Ban and a new generation of Portal video-calling devices.

As CTO, Bosworth will continue to oversee the Facebook Reality Labs division as well as the company’s efforts in augmented reality and virtual reality, Facebook CEO Mark Zuckerberg wrote in a blog post. Zuckerberg also thanked Schroepfer.

Schroepfer has been with Facebook since arriving as a vice president of engineering in August 2008, and he had held the position of CTO since March 2013, according to his LinkedIn profile.

His part-time role with Facebook will be that of senior fellow, Schroepfer wrote in his post. In that role, Schroepfer will focus on helping Facebook recruit and develop technical talent and continue to grow the company’s projects in artificial intelligence, Zuckerberg wrote.