CareerPlan

IT-Systemadministrator (m/w/d)

Köln, NORDRHEIN_WESTFALENFull-time2026-09-09 → 2026-11-06

Core

Administration of Windows and Linux servers, virtualization, networking, security, and backup systems for an organization.

Role type

System Administrator

Builds

Server infrastructure, virtual machines, network security policies, and backup solutions

Domain

IT Infrastructure / System Administration

Deliverable

infrastructure

Required skills

Windows Server administration, Linux administration, Hyper-V virtualization, FortiGate firewall management, Microsoft 365/Exchange administration, Veeam backup, network troubleshooting, Active Directory, DNS, DHCP, MariaDB

Preferred skills

Exchange 2019, Microsoft Teams, MailStore, Timas time tracking, Secova training portal

Technologies

Windows Server, Linux, Apache, MariaDB, Hyper-V, FortiGate, Microsoft 365, Exchange 2019, Veeam, OWTS, MailStore, Timas, Secova

Responsibilities

Administer Windows and Linux servers including Active Directory, DNS, DHCP, and file services; Manage Hyper-V virtualization environment including VM creation and migration; Configure and maintain FortiGate firewalls, VPNs, and VLANs; Administer Microsoft 365, Exchange, and Microsoft Teams; Monitor and restore data backups using Veeam; Troubleshoot network and server issues

Seniority

Mid-level, hands-on IC