ou are not a European Union citizen, then be sure to research all positions. Most jobs are offered in Oslo, but it is most likely possible to find a job in a different city, especially if you are experienced and speak Norwegian.
At the same time, most Norwegians speak English from birth, so as they say English teachers are a dime a dozen. UK English is also preferred over American English. If you would like to move to Norway, then it might be best to work in a field outside the education industry. A specialization in cybersecurity or big data analytics might make you more desirable. Although speaking Norwegian is a must.
That is different from the main point of this section. Teaching jobs are available in Norway, but not as common as in different industries.
With many qualified English speakers, you will need to make your skill set stand out when applying for a teaching position. That does not mean teaching jobs are non-existent. It might be easier to find a job teaching Business English in a company.
People in Norway do speak English, but their challenge is to hold on to their own language as life becomes more global. So far they’ve been successful without losing the two Norwegian dialects that exist within the country.