> Markdown version of [/jobs/ext/2994103-ot-it-security-engineer](https://www.wearedevelopers.com/jobs/ext/2994103-ot-it-security-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # OT / IT Security Engineer - **Company:** Actief Personalmanagement GmbH - **Location:** Mannheim, Germany (Remote available) - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Cyber Security, Linux, Windows Servers, Routing, TCP/IP, Virtual Local Area Networks, Virtualization Technology, Software Vulnerability Management, Information Technology - **Published:** September 19, 2026 - **Apply:** https://www.adzuna.de/details/5889628604 ## About the Role * Abgeschlossene Ausbildung oder Studium im Bereich Informatik, IT-Security oder vergleichbar * Mehrjährige Berufserfahrung in IT-Security, Systemadministration oder Infrastruktur * Gute Kenntnisse in Windows Server und/oder Linux * Grundkenntnisse in Netzwerken, TCP/IP, VLAN und Routing * Erfahrung mit Vulnerability Management und/oder System Hardening * Selbstständige, strukturierte und lösungsorientierte Arbeitsweise * Gute Kommunikations- und Teamfähigkeit ## Description Für unseren Kunden in Mannheim aus dem Bereich Energieversorgung / kritische Infrastruktur suchen wir einen OT Security & System Engineer (m/w/d). * Betreuung und Absicherung von IT-/OT-Systemen * Durchführung von Vulnerability Scans und Security Assessments * Bewertung und Nachverfolgung von Sicherheitslücken * Administration und Hardening von Windows- und Linux-Systemen * Betreuung von Server-, Netzwerk- und Virtualisierungsumgebungen * Unterstützung bei Patch Management und Security Audits * Analyse von Security Events und Umsetzung geeigneter Maßnahmen * Mitarbeit an OT-Security- und Infrastrukturprojekten ## Related Videos - [An Applied Introduction to eBPF with Go](https://www.wearedevelopers.com/videos/1075-an-applied-introduction-to-ebpf-with-go) - [Creating a routing app with Google Maps API from scratch](https://www.wearedevelopers.com/videos/831-creating-a-routing-app-with-google-maps-api-from-scratch) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [Turning Container security up to 11 with Capabilities](https://www.wearedevelopers.com/videos/718-turning-container-security-up-to-11-with-capabilities) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) ## Related Articles - [IT Salaries in Germany](https://www.wearedevelopers.com/magazine/287-it-salaries-in-germany) - [Finding IT & Technology English-speaking Jobs in Germany ](https://www.wearedevelopers.com/magazine/446-finding-it-technology-english-speaking-jobs-in-germany) - [System change: restart as developer?](https://www.wearedevelopers.com/magazine/39-system-change-restart-as-developer) - [IT Salaries in Austria](https://www.wearedevelopers.com/magazine/286-it-salaries-in-austria) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Finding Jobs in Germany](https://www.wearedevelopers.com/magazine/375-finding-jobs-in-germany)