I can't speak for most of the EU, but I know that for the UK, it's a lot of paperwork, but overall not difficult to get a visa if you have a job offer from a UK employer and they've sponsored visas before.
And while not a part of the EU, it's quite straightforward to get a visa for Norway if you have a job offer in IT or other professional fields, with the major exception being healthcare, where it can be difficult to get your credentials recognized, and you have to pass an exam showing proficiency in Norwegian.
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I can't speak for most of the EU, but I know that for the UK, it's a lot of paperwork, but overall not difficult to get a visa if you have a job offer from a UK employer and they've sponsored visas before.
And while not a part of the EU, it's quite straightforward to get a visa for Norway if you have a job offer in IT or other professional fields, with the major exception being healthcare, where it can be difficult to get your credentials recognized, and you have to pass an exam showing proficiency in Norwegian.