[JohanByttner]

42 is from Douglas Adams, the answer to the question of life and all that.

I do t know about the age limit, but it might be some (possibly faulty) reasoning about commitment. Staff have been tight-lipped. We have some people from the Pole Emploi (unemployment agency) here at the moment, and they are a bit older, so some kind of trial is underway.

[howandwhy]

Ah. got it. I suspect they discourage people older than 30 assuming it will be tough to get a position in a age-biased job market? May be. Just my guess.