What's the story behind this? The author is Rachel Kroll who was a production engineer at Facebook. Based on the post it's clear she left Facebook for another opportunity and has been there just over a year (just enough to vest) and left because the company's culture is irreparably broken. The only hint about what company it may be is the title, which suggests she's referring to Lyft. That said, I couldn't find any LinkedIn or other reference via Google to suggest that that is where she went after Facebook.