You are responsible for the maintenance of our technical infrastructure at all levels (virtual server in the cloud, physical IT infrastructure at our premises in Karlsruhe), 2nd level support for workplace systems and IT support for > 50 employees. Your tasks include the setup of complete workplaces and working environments, the designing and continuous modernization of our IT infrastructure, as well as the monitoring and operation of all network components (hardware, LAN, WiFi, router, firewall, VPN). You will furthermore supervise trainees. You will also work with external experts wherever necessary.