I'm interested in pursuing a permanent, independent research position in neuroscience in France. However, I'm getting conflicting information from different researchers in the country about whether or not there is an age limit. One institute has told me that it's not possible to put forth an application for a position like this after the age of 35 (I'm 42). Another has told me that no such rule exists and what matters is how much you have produced since your PhD diploma (in my case, 6 years). I've done as much googling as I can and I can't find any official documentation about an age limit.
If it matters, I already have my qualification through Galaxie and I speak French at a B2 level and eager to improve.