2w Not stated IT-Systemadministrator (m/w/d), Manderscheidtstr. 27, 45141 Essen Essen, Nordrhein-Westfalen Full-time Senior SNSSS Nelken GmbH · 2 matching jobs 5+ YOE Active Directory Job posting+ Track 2w German required Senior IT-Systemadministrator (m/w/d) Schwerpunkt IT-Security, Manderscheidtstr. 27, 45141 Essen Essen, Nordrhein-Westfalen Full-time Senior SNSSS Nelken GmbH · 2 matching jobs 6+ YOE Active Directory, Azure, BSI IT-Grundschutz, SIEM, Windows Server Job posting+ Track