I was a E5 security engineer at Facebook. Left after 4 years because I married a Canadian, was sick of living in the bay area and FB had no way for me to continue working where I wanted to live. I enjoyed the job a lot but non-career stuff (including allowing my wife to start her career after finishing her PhD) was a higher priority.
I moved to Canada and spent two years working remotely as a security manager for Uber which I also enjoyed. I eventually left because of burn out and took a few months off completely. I now live in Montreal and am working on a startup with a few friends in NYC.