When you apply for a work permit, you need to prove that you have a job offer that fulfills all the requirements of a Swedish work permit by itself – so not just the salary requirement, but also other requirements, such as having the required insurance and proof that the application is equal or better than that offered by a collective bargaining agreement or other industry standards, if there is no collective agreement. In addition to this, under Sweden's work permit rules, you're not allowed to pick up a second job on the side if you already have a work permit, so you can't go down this route if you already work in Sweden but your current job doesn't meet the new requirements, for example.