He will particularly be called upon to help Facebook and other Silicon Valley stalwarts grapple with a changing regulatory landscape globally.More news: HAPPENING NOW: 'Trump Place' Signage Coming Down Off Upper West Side Building
Sir Nick Clegg will move to California in January.
In a Facebook post today, Clegg acknowledged the obvious challenges of the job he's just agreed to take, saying Facebook and its subsidiaries-including WhatsApp and Instagram-lay at the heart of some of the most hard questions facing society today, including privacy, the integrity of the democratic process, and the tension between local cultures in a connected world. "Having spoken at length to Mark and Sheryl over the last few months, I have been struck by their recognition that the company is on a journey which brings new responsibilities not only to the users of Facebook's apps but to society at large", Clegg said.More news: Northern Irish author Anna Burns' 'Milkman' wins Man Booker Prize
The 51-year-old politician was leader of the Liberal Democrats and formed a coalition government with David Cameron and the Conservatives in 2010.
It comes as Mark Zuckerberg seeks to fix the company's reputation amid rows over transparency and the role of "fake news" on the platform following the 2016 Brexit referendum and the election of Donald Trump to US President in 2017.More news: The Red94 Houston Rockets Podcast: Beatdown in the opener
Several prominent executives have left the company in the previous year.