Language a problem?
In Europe, in most countries, people are educated in at least two other languages than their own.
In highschool every student is trained in English and another 2knd language for 4 years (French / German, Spanish)
In most vocational education students are trained for an extra 2 to 4 years in English and sometimes German as well.
So, I guess communicate in English is no issue.
But if you want to work and live in Sweden for a longer time, the Swedish government requires a well understanding of the Swedish language, you have to do a basic examination before final registration.