Werkstudent (m/w/d) PR- und Influencer Marketing Hagen Vollzeit CHRIST Juweliere und Uhrmacher seit 1863 Jina AI full-time internship or working student: Become our next AI influencer and help us to communicate better in the field of machine learning Berlin Home Office Jina AI GmbH Junior PR Consultant (m/w/d) Berlin Vollzeit KMB Creative Network AG