How to work in another EU country with a residence permit issued by another EU country?
A residence permit issued by an EU Member State does not always give the right to work in other European countries.
As far as Italy is concerned, in general, the so-called "ordinary" permits (for work, study, family, childcare, religious reasons, awaiting employment, asylum, etc.) allow the holder to work abroad only temporarily, without the possibility of establishing a permanent relationship.
This is because the so-called "ordinary" permits allow you to stay in other Schengen countries for a maximum of 90 consecutive days, with the possibility of only short stays in Italy.
Therefore, if you wish to move abroad, you will have to apply for a residence permit in the new country, according to its internal immigration regulations.
The only exception is the EU long-term residence permit, provided for by Legislative Decree 3/2007, which, in application of Directive 2003/109/EC, allows you to work and study in a country other than the one that issued it.
In any case, it is advisable to check with the authorities of the State of the new destination to verify that no limits have been imposed on this type of entry or if there are any particular requirements (e.g. minimum financial resources, availability of accommodation or insurance coverage).