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# Linux System Administrator:in

- **Company:** Compusafe Ag
- **Location:** Kaarst, Germany
- **Contract:** Permanent contract
- **Skills:** Apache Tomcat, Linux, Elasticsearch, Middleware, VMware ESX Servers, Icinga, WildFly (JBoss AS), Linux Servers, Unix Shell, Network Architecture, Routing, Prometheus, Shell Script, TCP/IP, Okta, Spring-boot, Firewalls (Computer Science), Apache Kafka
- **Published:** July 15, 2026
- **Apply:** https://jobs.4hr.de/jobs/ba9e88b209966befb86348c1c3a5878bebe4a60f

## About the Role

* Mehrjährige, praktische Erfahrung in der Administration von VMware ESX/ESXi-Umgebungen
 * Fundierte, mehrjährige Erfahrung in der Administration von Linux-Servern
 * Praktische Erfahrung in der Administration middleware-naher Produkte wie Kafka, Keycloak, Elasticsearch, Prometheus, Tomcat, JBoss und/oder Spring Boot inklusive deren Update- und Patch-Managements
 * Sicherer Umgang mit Shell-Programmierung sowie Erfahrung in der Erstellung komplexer Admin-Programme
 * Ausgeprägte Kenntnisse in TCP/IP-Netzwerken (Routing, Server-Firewalls) sowie im Bereich Monitoring, idealerweise mit Icinga
 * Bereitschaft Kriterienkatalog auszufüllen
 * Sehr gute Deutschkenntnisse (Min. C1)

## Description

* Administration und kontinuierliche Weiterentwicklung von VMware ESX/ESXi-Umgebungen zur Sicherstellung eines stabilen Virtualisierungsbetriebs
 * Betreuung und Administration von Linux-Servern einschließlich Fehleranalyse, -bewertung und -behebung im laufenden Betrieb
 * Durchführung des Update- und Patch-Managements der eingesetzten Middleware-Komponenten (u. a. Kafka, Keycloak, Elasticsearch, Prometheus, Tomcat/JBoss/Spring Boot)
 * Konzeption und Entwicklung von Shell-Skripten zur Automatisierung administrativer Abläufe sowie Erstellung komplexer Auswertungsprogramme (z. B. Performance-Analysen)
 * Aufbau, Pflege und Überwachung von Monitoring-Lösungen (insbesondere Icinga) sowie Betreuung der TCP/IP-Netzwerkinfrastruktur inklusive Routing und Server-Firewalls


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