Hi,
In order to work in Sweden, you must have a work permit. Read more about how to apply for a work permit here: https://www.migrationsverket.se/English/Private-individuals/Working-in-Sweden.html. Here is also a helpful guide for finding a job in Sweden: https://sweden.se/work-business/working-in-sweden/finding-a-job.
Sincerely/ Petra, Allastudier