Linux-Systemadministrator (Senior) – 2nd-Level-Support im Hosting (m/w/d)
Core
Senior Linux system administrator providing 2nd-level support for hosting infrastructure, handling complex incidents, performance issues, and platform-level troubleshooting while coaching the team.
Role type
Senior Linux System Administrator (2nd-Level Support)
Builds
Stable hosting environments, virtualized platforms, and network services for clients
Domain
IT Services / Hosting / Linux Systems
Required skills
Linux system administration, Web/Mail stack (NGINX, Apache, PHP, HAProxy, Traefik), Virtualization (Proxmox, KVM, Ceph), Incident management, Runbook creation, Team coaching
Preferred skills
IaC/Ansible, Firewall/VPN/WAF (WireGuard, OpenVPN, iptables/nftables), Complex migrations, Monitoring/Observability (checkmk, Prometheus)
Technologies
Linux, NGINX, Apache, PHP, HAProxy, Traefik, Proxmox, KVM, Ceph, Ansible, WireGuard, OpenVPN, iptables, nftables, checkmk, Prometheus
Responsibilities
Handle complex L2 tickets requiring deep error analysis on application, system, and platform levels; Coordinate and resolve incidents; Define and evolve standards (runbooks, escalation rules); Coach L1/L2 team members and review workflows
Seniority
Senior, hands-on IC with team leadership responsibilities