The immigration policy regarding work permits granted to people who are from non-EU countries in any country in the EU all have in common that the job has to be advertised on a EU site so that EU citizens get a first crack at it - there are 508 million inhabitants in the EU so that should be plenty of people to fill any position. It's not just a Swedish thing. The money exchange made a mistake by not advertising the job on the arbetsförmedlingen job board.

Unfortunatly most do not want to advertise on the arbetsförmedlingen job board, because people who are eligible for unemployment benefits must seek X jobs a month, so they seek jobs that they are not qualified for (or overqualified for). Putting an ad up on arbetsförmedlingen means you'll get hundreds of useless applications, and you might not find a suitable employee. So, increasingly people use Linkedin and other job boards instead - because Linkedin is increasingly working as a job board.

Except when they apply to get a work permits for a non-EU citizen, they break the law. Moral of the story: Linkedin is not a job board in the eyes of the EU.