Apply for a temporary residence permit with a full set of documents to the Immigration Office of the Luxembourg Ministry of Foreign Affairs or to its diplomatic representative.
Applications are processed only when they are full and complete, and include all the needed documents. Otherwise, the application will be returned to the applicant. It is important to follow every step of the application process correctly, as your success will depend on it.
Only the necessary documents that are required for moving to Luxembourg have to be translated in your country of origin. Normally, a notarized translation is enough. However, you can ask a sworn translator in Luxembourg to certify the translation.
All personal documents (birth certificates, marriage certificates, etc.) need to be apostilled. An apostille can only be issued by the state authorities of the country that issued the document. It is impossible for anyone else to do this. Diplomas do not need to be apostilled, unless your employer specifically demands it.
Submit an application for a temporary residence permit (see section 1) with the complete set of documents (see section 2) to the Immigration Directorate of the Ministry of Foreign Affairs of Luxembourg or to a diplomatic representative.