I'm in Seattle and the answer is 'It varies'. We have oncalls which can feel like working ~70 hrs/wk, and slower weeks where I'm only really in the office for 3

I'm in Seattle and the answer is 'It varies'. We have oncalls which can feel like working ~70 hrs/wk, and slower weeks where I'm only really in the office for 30 or so hours. Usually I'm in office or checking in on stuff from home for about 45hrs/wk. A lot of my office time is spent in conversation or explaining things to juniors, getting coffee, dealing with inter-team communication issues, that sort of thing. Some (like now) is spent browsing the web, which I think of as keeping up with industry trends:) If I wanted to 'take the next step' in my career, I'd likely have to lose some of my flexibility and have a more butt-in-seat approach. I think most of the management and principal engineers here at AWS are in the 50+ hour club.