IT Support Specialist (Senior, 2nd Level) - Hosting

Stack

Responsibilities

• ▹Handle complex L2 tickets in daily operations, with in-depth troubleshooting at the application, system, and platform level
• ▹Own demanding topics: virtualization/HA/storage-related cases, firewall/VPN, performance and stability issues, complex migrations
• ▹Coordinate incidents: prioritize, keep threads together, and derive concrete improvements from disruptions
• ▹Define standards: develop runbooks, escalation rules, minimum ticket data, and support procedures
• ▹Strengthen the team: coach L1/L2 colleagues, review approaches, and share knowledge

Requirements

• ▹Deep Linux and service-stack knowledge: system behavior, load and error patterns, side effects of changes
• ▹High-level web/mail stack experience: web servers (e.g. NGINX, Apache), PHP runtimes, databases, caching layers, and reverse proxies (e.g. HAProxy, Traefik), including typical hosting architectures such as app/DB separation, replication, or clustering
• ▹Platform and virtualization competence: experience with virtualized environments, HA concepts, and storage (e.g. Proxmox, KVM, Ceph)
• ▹In-depth troubleshooting: analyzing and resolving complex disruptions at the application, system, and platform level, considering dependencies and impact on other systems
• ▹Good German and good English for customers, documentation, and vendor communication

Nice to have

• ▹Deep Proxmox/Ceph specialization
• ▹IaC/Ansible
• ▹Firewall/VPN/WAF experience (e.g. WireGuard, OpenVPN, iptables/nftables)
• ▹Experience with complex migration projects
• ▹Monitoring/observability depth (e.g. checkmk, Prometheus)

Soft skills

What we offer

• ▹100% remote, free hardware choice, Linux setups explicitly welcome
• ▹Home-office allowance
• ▹30 vacation days
• ▹Professional development toward systems administration, networking, or development
• ▹A small team where you're not just a ticket number