Out of all of the positions/firms on my CV, that one seems to carry the most weight to recruiters and other companies, despite it being the time where I did the least productive work in my life (So much so that when I was asked why I was leaving during my exit interview I straight up said “I’ve gotten dumber since working here.”)
I was well past the 60% mark by the time I got through my first Q4 working for Amazon as an SE, and in to something like 90% by the time I got through my second. The figures the L7 engineers were bouncing around at that time were that developers averaged around 2 years.
I'm a bit concerned about this one guy on one of my previous teams who moved from Europe to US to work on AWS. I don't think he was aware of the company culture.