Facebook announced on Monday that its chief operating officer Sheryl Sandberg has joined the company’s board of directors, making her the company’s first-ever female board member.

Sandberg — who oversees Facebook’s business operations including sales, marketing, business development, legal, human resources, public policy and communications — will joining existing members such as Facebook co-founder and CEO Mark Zuckerberg, Netflix chairman and CEO Reed Hastings and chairman and CEO of The Washington Post Company, Donald E. Graham.

It’s been previously reported that Sandberg got paid $30.87 million last year, making her the most highly compensated employee at the company in 2011.