This was actually illegal in Norway until recently. It is legal now, though, and you're right that this is an option. For in-demand professions like software engineers, such a scheme actually requires salaries that are comparable to those of moderately high cost-of-living areas in the US.
A typical annual fee would be ~$200.000 pre-tax for a full-time consulting gig, with 25% VAT paid by the employer on top of that. Contractor pays approximately 50% tax on their fee. It's a bit strange that few companies actually do this, although many will have part of their workforce employed like this indirectly, through a contracting agency. It's popular for roles that have a weak negotiating position, such as teachers, call center employees, nurses etc. Although rarely with contract lengths as short as 3 months.
A typical annual fee would be ~$200.000 pre-tax for a full-time consulting gig, with 25% VAT paid by the employer on top of that. Contractor pays approximately 50% tax on their fee. It's a bit strange that few companies actually do this, although many will have part of their workforce employed like this indirectly, through a contracting agency. It's popular for roles that have a weak negotiating position, such as teachers, call center employees, nurses etc. Although rarely with contract lengths as short as 3 months.