You can:
publish your offer on the EURES network
EURES (EURopean Employment Services) is a cooperation network between the European Commission and the public employment services of the Member States of the European Economic Area, whose objectives are to inform, guide and advise, inter alia, the Employers wishing to recruit in a European country.
When submitting your vacancy, you have the possibility to ask your advisor to publish your offer in the European database that can be consulted by candidates from all over Europe.
finding a European candidate registered with the EURES network
You can consult the EURES database to view CVs of people interested in the European job market. To do so, you must create a free account on the EURES website.