They’re in the defence industry, so I understand why they put limits on nationality. Their selection is very weird, though. Even with security clearance issues, you’d expect a French company to put French citizenship on the list.
The job description is here. My guess is that the “TACTICOS Combat Management System” is being developed on from various offices, and that they’d like someone to either be fully local or be able to communicate efficiently with any other office (to prevent cultural communication boundaries or something like that).
It’s also possible this is some kind of passport thing. Not every country has passport deals with the same countries. If there’s a chance you need to be shipped off to a certain place, the whole process will be a lot easier if you have a passport that allows for a quick and easy work visa.
I suppose, but I’m pretty sure we Dutch and the French are allies, so I can’t imagine why a subsidiary of a French company in the Netherlands would have problems with French employees