I know a couple people who are tech leads at large, well known companies (Facebook, Amazon) with 2-3 years of experience. But the one that I know better than th

I know a couple people who are tech leads at large, well known companies (Facebook, Amazon) with 2-3 years of experience. But the one that I know better than the others is a workaholic obsessed with things like perceived "prestige". My guess is that they both were put in charge of some project that was a homerun and thus got allocated more head count, so they were logically chosen to keep leading the project they helped create.