No it is not. Yes it could be for your average everyday developer but if someone can run site with millions of active users alone, there is no difference in salary based on where the developer stays. Does Mistral pays $100k salary to researchers?
Or full time. In some countries, those are pretty decent salaries. I earn €50k in one of the poorer European countries and that puts me in the top ~8%.
I thought so too, but another entry in their sheet is "Sysadmin (part time)" for $18k/yr. So either they forgot to put part time in parens, or they're paid full time wages. I wonder which...