Netzwerktechnik: Cisco, Ubiquiti UniFi, Lenovo Switches; VLAN‑Strukturierung, Routing, DHCP/DNS/NPS‑Services, VPN‑Konfiguration, Firewalls (Checkpoint, Netgate/pfSense)
Microsoft- und Linux Umgebungen: Windows Server (AD, GPO, DNS/DHCP), Microsoft 365/Exchange Online, Entra ID; Linux‑Administration (Ubuntu, SLES), Shell‑Scripting, Systemdienste
Server- und Clientadministration: VMware vSphere/ESXi, Storage‑Systeme (Lenovo, Synology), Patch‑Management, Endpoint‑Management, Hardware‑Lifecycle, Container‑Technologien (Docker, Podman)
Cloud-Lösungen: Microsoft Azure (VMs, Storage, Networking), Entra ID, Microsoft 365‑Administration, Cloud‑Backup/Recovery (Veeam, Azure Backup), Atlassian (Jira, Confluence)
IT-Sicherheit und Cybersecurity: Endpoint‑Security (Microsoft Defender, Checkpoint), Firewall‑Management, MFA/Conditional Access, Monitoring & Log‑Analyse, grundlegende Schwachstellenbewertung
