Linux System Administrator - Security Platform (m/w/d)

We protect real life from digital threats. The Myra Security team pursues this mission with enormous passion. As a German technology manufacturer, we offer a secure, certified Security-as-a-Service platform for protection against digital threats, ranging from critical infrastructure and authorities to DAX-listed companies. Our intelligent technologies monitor, analyze, and filter malicious internet traffic in real time before virtual attacks can cause real damage. For the operation of our highly available platform, we are looking for an experienced Linux System Administrator with a sense for IT security – someone who loves the command line, thinks in terms of automation, and operates security-related platforms in a production environment. About the role This role is a combination of Linux system administration, network technologies, security platform operations, and customer interaction. You will not only be responsible for the infrastructure, but also for ensuring that our customers can successfully use the platform.

• Operation and configuration of our Linux platform (Debian) – from CDN edge servers to internal systems, including system updates, package management, and hardening.
• Administration and configuration of NGINX, WAF, Bot-Management, and CDN components.
• Management of DNS/DNSSEC, BGP routing, and network switches.
• Operation and further development of monitoring stacks (Icinga, Grafana, Elasticsearch), including dashboards and alert rules.
• Carrying out customer onboarding, 2nd-level support, and creating technical documentation.
• Participation in a rotating 24/7 on-call duty (with additional pay) and quick troubleshooting. Must-have
• Several years of experience in Linux system administration (Debian/Ubuntu) in production environments.
• Excellent knowledge of the Linux CLI – you work confidently and quickly, even under pressure.
• Deep experience with network technologies: TCP/IP, DNS/DNSSEC, BGP, firewall concepts, TLS.
• Experience with NGINX, CDN architectures, or reverse proxies.
• Knowledge of monitoring tools (Icinga, Grafana, Elasticsearch, or similar).
• Experience in 2nd-level support or customer support.
• German and English languages at B2 level or higher, spoken and written – C1 is an advantage. Nice-to-have
• Experience with Infrastructure-as-Code (Terraform, Saltstack, or similar).
• Experience operating security platforms, WAF, or Bot-Management systems.
• Experience with container technologies (Docker).
• Certifications: CompTIA Security+, OSCP, or similar.
• Experience operating VPN solutions (WireGuard).
• Knowledge of AI/ML tools in the context of security (anomaly detection, log analysis).