In Germany, I think many dev jobs are around Munich. Stuttgart and the surrounds have a lot of industry-related development, while Frankfurt is the finance hub.

In Germany, I think many dev jobs are around Munich. Stuttgart and the surrounds have a lot of industry-related development, while Frankfurt is the finance hub. In France, Grenoble and Paris are the big hubs as far as I know. But the question is where do you want to live in an environment. I'd advise you to pick the country first and then the city.