Yes, but not under a student contract.
In fact, the law allows pupils and students to enter into a fixed-term contract, the weekly duration of which may however not exceed an average of 15 hours, over a period of one month or 4 weeks.
It should be noted that the limitation of a maximum of 15 hours per week laid down in the foregoing paragraph does not apply to the employment of pupils and students during school holidays.
Thus, during school holidays it is permitted to sign a contract with a student under which the weekly working time may be of up to 40 hours.