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# Senior IT Security & Infrastructure Administrator

- **Company:** Bertrandt AG
- **Location:** Ehningen, Germany
- **Experience:** Expert
- **Salary:** €57,500.0 - €83,000.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Wireless LAN, Active Directory, Microsoft Azure, Cyber Security, Virtual Private Networks (VPN), Local Area Networks, Routing, Systems Integration, ARUBA, Firewalls (Computer Science), Fortinet
- **Published:** August 24, 2026
- **Apply:** https://www.xing.com/jobs/linsengericht-senior-it-security-infrastructure-administrator-157208360

## About the Role

* Abgeschlossene IT-Ausbildung (z. B. Fachinformatiker Systemintegration) oder vergleichbar
 * Mehr als 5 Jahre Berufserfahrung in der operativen IT-Security-Administration
 * Sehr gute praktische Kenntnisse in Firewalls (idealerweise Fortinet), Netzwerken, Routing und Segmentierung
 * Erfahrung mit SOTI, HPE Aruba & Central, ClearPass und Active Directory
 * Sehr gute Kenntnisse in Azure, Microsoft 365 und Entra ID
 * Gute Deutsch- und Englischkenntnisse

## Description

* Betrieb, Administration und Absicherung von Active Directory, Entra ID und Azure
 * Operative Betreuung und Weiterentwicklung der Netzwerk- und Security-Infrastruktur (LAN/WLAN, Segmentierung, MDM)
 * Betrieb von Firewalls, Switches und Security-Systemen (z. B. VPN, E-Mail- und Endpoint-Security)
 * Umsetzung von Changes, Patches, Updates und Konfigurationsanpassungen
 * Mitarbeit in Netzwerk-, Server- und Security-Projekten (lokal und bei Bedarf global)
 * Analyse, Bearbeitung und Dokumentation von Security Incidents in Abstimmung mit globalen IT-Security-Teams
 * Erstellung und Pflege von technischer Dokumentation, Richtlinien und Notfallkonzepten
 * Second-Level-Support im eigenen Verantwortungsbereich
 * Sicherstellung der Einhaltung lokaler und globaler IT-Sicherheitsvorgaben am Standort


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