One guy from the UK managed to get through the selection process and became student ATCO at the ENAC (French national school) last year.
Few vacancies for student ATCO last year. Nearly impossible to get in because it is really competitive.
I only heared rumours about foreign licenced ATCO recruitments so far. Don't expect much and really take great caution about positions offered if you want to apply. You obviously need to be fluent in french to work here...
Good luck.