Schengen visa to pursue a gainful activity subject to work permit
Working in France, even for a short period of time, requires getting a temporary work permit prior to your trip.
However, the need for a temporary work permit may be waived under certain circumstances.
In order to check if you need to get a temporary work permit to work in France, please check the following website (in French) :
If, after checking the website, you think you still need to get a work permit, please ask the employer in France to contact the DIRECCTE. The work permit has to be obtained by the employer and not by the employee.