Network Administrator (m/f/d)

Salary: 48.000 - 88.000 € per year

Requirements:

Extensive experience in administering Linux servers (e.g., Debian, Ubuntu, RHEL/Rocky/AlmaLinux)

Practical expertise in Proxmox VE and, ideally, Ceph or comparable distributed storage solutions

Experience with several of our core services (Zimbra, Nextcloud, web servers, monitoring, directory services)

Proficiency in networking, firewalls, DNS, certificates, and backup strategies

Experience with automation and configuration management (Ansible or similar)

An analytical, self-directed approach to work and the motivation to further develop a fully self-managed infrastructure

Good command of German; English for technical documentation

Responsibilities:

Operating, further developing, and troubleshooting our routing and switching infrastructure (primarily Cisco components)

Administration of our next-generation firewalls—across multiple vendors, including Fortinet (FortiGate), Sophos, and pfSense

Operation and maintenance of our FortiWeb-based web application firewall to protect our web applications

Implementation and maintenance of our Fortinet-based SD-WAN environment—from site connectivity to performance optimization

Vulnerability analysis and systematic hardening of IT systems (network, firewalls, server and client connectivity)

Network segmentation, VLAN and VPN design, and perimeter security

Monitoring of network and security components, including alerting and incident response

Maintenance of comprehensive technical documentation and further development of security policies

Technologies:

Ansible

Ceph

Cisco

Debian

Firewall

FortiGate

Hardware

Support

Linux

Network

RHEL

Security

Ubuntu

VPN

Web

Backbone

More:

We are STREIT GmbH, one of Germanys leading providers of safety and occupational health services. As an owner-managed family business, we provide nationwide, cross-industry support based on customer-specific concepts and innovative solutions, backed by the experience and motivation of our employees. For our headquarters in Bensheim, we are seeking a full-time Network Administrator (m/f/d) for our infrastructure team. We offer a challenging, self-managed network and security environment with real responsibility, freedom to shape architecture and security decisions from day one, a well-coordinated team with flat hierarchies and quick decision-making processes, up-to-date hardware and targeted professional development including vendor certifications, flexible working hours, fair and transparent compensation, and a secure, future-oriented job with long-term prospects.

last updated 36 week of 2026