Senior IT Support Specialist – Hosting

• Handle complex L2 tickets as part of day-to-day operations
• Perform in-depth troubleshooting at the application, system, and platform levels
• Handle virtualization, HA, storage, firewall, VPN, performance, and stability incidents
• Carry out complex migrations
• Coordinate incidents, prioritize tickets, and derive concrete improvements from outages and disruptions
• Further develop runbooks, escalation rules, minimum ticket data requirements, and support procedures
• Provide technical coaching to L1/L2 colleagues
• Review procedures and share knowledge
• Coordinate the technical response during critical incidents

• In-depth knowledge of Linux and service stacks
• Experience with web servers such as NGINX and Apache
• Experience with PHP runtimes, databases, caching layers, and reverse proxies such as HAProxy and Traefik
• Knowledge of typical hosting architectures, including application/database separation, replication, and clustering
• Experience with virtualized environments, HA concepts, and storage technologies such as Proxmox, KVM, and Ceph, or equivalent technologies
• In-depth troubleshooting at the application, system, and platform levels
• Ability to consider dependencies and the impact on other systems
• Ability to support colleagues’ professional development, establish standards, and improve ways of working
• Good command of German
• Good command of English for customer communication, documentation, and communication with vendors
• Plus: Proxmox/Ceph specialization, IaC/Ansible, firewall/VPN/WAF experience, complex migration projects, and monitoring/observability expertise

• 100% remote work
• Free choice of hardware
• Linux setups explicitly welcome
• Home office allowance
• 30 days of paid vacation
• Professional development opportunities in systems administration, networking, or software development
• Support for professional development
• Small team with close, personal collaboration