What are the dos and don'ts of finding a job in Luxembourg?

Hello everyone,

Where is the best place to start when looking for a job in Luxembourg? Is it better to job-hunt by directly contacting the company of your interest, or should job-seekers rely on a recruitment agency, for example?

Are there any unique aspects that job-seekers should consider when preparing their CV/résumé and cover letter? Should a photo be included?

Do you have any tips on interview conduct in Luxembourg? Are there any particulars, such as greetings or behavioural customs?

In you opinion, is knowledge of the local language or a regional language necessary to successfully apply for a job? What level of the language should job-seekers have mastered?

Thank you for sharing your experience.

Priscilla