IT Server Administrator for Linux Infrastructures

To strengthen our IT infrastructure team, we are looking for an experienced Linux server administrator (d/f/m) who looks after our heterogeneous system landscape and develops it with a view to the future. The focus is on Linux platforms (especially Red Hat Enterprise Linux) and ensuring smooth operation of the Unix-based infrastructure. Fixed term until 31.12.2028.

• Administration, maintenance and operation of Linux servers with a focus on Red Hat Enterprise Linux (RHEL 8/9)
• Installation, configuration and patch management
• Ensuring system availability and IT security through monitoring & logging via CheckMK, Grafana and Syslog
• Incident and problem management
• Planning and implementing system updates, migrations and lifecycle management
• Collaboration with the network teams and implementation of routing, firewall and connectivity requirements
• Operation of security solutions, especially antivirus, hardening and identity & access management
• Automation of operating processes (e.g. using shell scripting, Ansible or similar tools)
• Creating and maintaining technical documentation
• Support with audits and compliance with compliance and security policies

• Completed degree in computer science, vocational training as an IT specialist or a comparable qualification
• Several years of professional experience administering Unix/Linux systems
• Sound knowledge of Red Hat Enterprise Linux (RHEL)
• Solid understanding of networking (TCP/IP, DNS, DHCP, VLANs)
• Experience in IT security (antivirus, system hardening, patch management)
• Knowledge of scripting (shell, Bash etc.)
• Structured, independent and solution-oriented way of working
• Team player with good communication skills
• Good German and English skills, written and spoken
• Certifications in the Linux/Unix field (e.g. RHCSA, RHCE) are desirable
• Knowledge of scripting and automation (e.g. Ansible) is desirable
• Experience with container solutions (e.g. Docker, Kubernetes) is desirable