Mark Zuckerberg's longest-serving employee on AI, jobs - and her boss

When Naomi Gleit joined Meta just over 20 years ago, she was the firm's 29th employee.

Today, she is its longest serving staff member - apart, that is, from founder Mark Zuckerberg.

Since joining him at the age of 21, Gleit has watched a start-up called Facebook transform into a tech giant called Meta, and weathered many storms and controversies along the way.

Now head of product, she told the BBC working at Meta was her "dream job" - even if, two decades ago, her family took some persuading that she'd made the right decision.

"My mom was very disappointed, she wanted me to work for Lehman Brothers," she laughs.

The investment bank collapsed in 2008, triggering a global financial crisis.

Meta, meanwhile, is still going strong but has experienced its own earthquakes: from privacy scandals and election rigging accusations to teen mental health crises and toxic online harms.

Gleit acknowledges there have been moments where the company "didn't meet our standards" or missed the mark.