Excerpted from the France Career Guide
Establishing and nurturing social relationships is very important in France, and networking can be crucial in the job-seeking process. While more than 30 percent of jobs are filled through speculative applications (i.e., applications sent not in response to published job advertisements but aimed at any potential current or future openings within the organization), a comparable number are filled through personal contacts.
Business attire is conservative in France; it is appropriate to dress formally for an interview. The French are well dressed and well groomed.
In a multinational or a larger organization, the interview procedure usually starts with some psychological or technical tests. The next step is a face-to-face interview. Two to four interviews are usually held for a position, with attention being paid primarily to your personality.
It is not appropriate to call others outside the department to follow up on questions and issues not discussed during the interview. This ‘going behind the interviewers’ backs’ could be considered offensive.
This is just a short sample of what you’ll find in over 100 pages of information in the complete France Guide.