I have multiple friends at AWS and they work 35 hour weeks, around the same as me. With that said I’ve noticed very fast promo cycles in nearly all Tier 1 service supporting teams, both AWS and CDO.
Man I should've done my research before joining, my team was regularly pulling 70+ hour weeks including weekends for the first four/five months I was there (granted we were understaffed and behind schedule for launch at re:Invent at the time). Grateful for the experience because everything else feels like a breeze afterwards, but also definitely never putting up with that again lol