100k in what area of the country? Uber is not exactly the most lucrative place, but Eng Is generally make over 100k base, Eng IIs 120-150 and Sr is like 135-185, all base. 300k or more a year total comp is possible at Uber. Amazon would be similar, maybe higher
$160,001 base. minimum. if $1 less then don't take the offer
A QA engineer (are they actually engineers) I know that works for Amazon in the Bay Area said his base is $185k, plus $300k in RSUs but he did not mention any signing bonus amounts. So I would expect you to get something more than that.
one of my friend recently joined Amazon in South bay as sse he was offered 150k base and 300k stocks .
They must be quite senior
4 years of experience in a startup