Not the best paid, but unless you want to live within Paris, it becomes a confortable revenue.
In France, you are considered rich when your net revenue is twice the median. That is to say, if you get more than ~4000 € of _net_ monthly salary (around 61k gross/year), you are rich. This was very easy to reach in the IT industry, especially in the Paris area, after 15 years at most.
The 1% richest (based on salary) start from 7500 € net/month (115k gross/year).