I'm an American senior developer who also happens to be fluent in French. I would kill to work in Paris, but every time I have looked the rates for senior engineers were 1/3 what you're describing and there's no way I'm moving for that.
While the number on the paper looks much lower, in reality your standard of living isn't much different.
The employee will see something less than 3k arrive every month, while it costs the company 150k per year.
This explains why you may not get the best and the brightests. (with these 30k per year you can fund you education, healthcare and unemployment)
Also, the cost of living in Paris may be less than NYC, SF, DC, but I think that's about it.
Also, every job I've ever had provided me with free health insurance. Not sure what the big deal with that is.
1) You get your [not really] free education in France not in Paris because it's crazy expensive [unless you live there with your family who own something].
2) Get your master [you can only do master level here and everything else is highly underated].
3) You try to leave to America and you can't because H1B are crazy impossible to get.
4) You move to London.
5) You realize your master is useless there and you could have got all the same with only a bachelor, save the money and a few years of your life.
6) You go back to France once a year for the engineer school job fairs to recruit interns and help Frenchies leave their country.
I don't think it's fair to say "there are" when "there IS" only a single company that pays this kind of money in Paris.
Basically all the companies I know someone in pays this kind of salary to people with 3 to 5 years of experience ! Are we really living in the same city ?
I was referring to the "twice as much" in "around 50-60 [...] but there are tech companies that pay up to twice as much "
Are you saying that these companies pay 50-60k€ or 100-120k€ for people with 3-5 years experience?
It is not what the dev receives(which would be 50-75k€).