What’s your sense of the size of the Ada job market? High hundreds? Close to 10,000? Is it static or growing or shrinking? Is there a preferred online community for Ada devs?
Probably a thousand max in France? extrapolating from the ones I know, if you're talking defense/aeronautics (but I don't know or see everyone). Someone from AdaCore would give a better approximate.
We (embedded company) don't hire specifically with Ada experience (it's welcome but not mandatory) we just train people and then focus on shipping stuff.