Thales has a strong history of warfare & cybersecurity.
This company is entitled to the French government & others french compagnies. It's goal is to give France a good, reliable, proactive, industrial force to the Defence department of the french government.
It doesn't have a strong company job culture, as it's main goal is to create & deliver products, materials, & solution to defence & warfare.
Managment is medium, but if you are doing a good job, you can make a complete career at Thales, it has a lot of different activity areas, and you can easily switch between them thanks to the project oriented managment culture.
Don't expect to have a good salary at the begining though, skills are very lately considered as valuable. (you will have to wait a little bit of time).
Job work/life balance is very bad, you can easily be absorbed by your work & never have external activities, even if the campus give you the opportunities. There are some big change and improvment to be made here ! Directly linked to job culture.
This company needs a job culture.