KEY POINTS
  • A Facebook engineering manager who ran an open-source project left earlier this month after being harassed by her colleagues.
  • Sophie Alpert said in an internal post that she wants "to spend my time at a place willing to push further on diversity and inclusion."
  • Facebook's diversity has been improving, but the company is still largely white and male.

On Jan. 11, Sophie Alpert, a Facebook engineering manager who ran a major open-source project called React, made an announcement on Twitter: "today's my last day at Facebook."

In the tweet, which got 3,600 likes and elicited 247 comments, Alpert said she was leaving to join a start-up called Humu. But she neglected to tell her more than 41,000 followers the reason for her abrupt departure.