Yes, if you are a student European, you can work as an employed person during your studies. You do not have to have a residence permit or work authorization.

You must work as an ancillary job (i.e. in addition to your studies).

You can work a maximum of 964 hours per year, either 60% the total legal annual working time.

If you exceed this quota, you are no longer recognized as a student, you change the category of reason for your stay. You will then report to the category of workers.

You will have to submit your application for a residence card of an EU/EEA/Swiss citizen worker on the Internet before the end of your student residence permit.

Apply online for a residence permit, a change of situation, a travel document, an application for ANEF naturalization