IT System Engineer (all genders) Netzwerk und Security in Köln

This position involves managing incidents, changes, and problems within diverse client network environments, primarily at the second and third support levels. The role requires planning and executing network projects, analyzing technical faults, and maintaining documentation and configuration management databases. You will also communicate with hardware vendors and clients to resolve issues, provide pre-sales support for network and security technologies, and participate in a 24/7 on-call rotation. Occasional on-site visits to clients in the North Rhine-Westphalia region are part of the duties, though most work is performed remotely. Candidates need a completed IT vocational training, such as in system integration or electronics, or a degree in computer science. Several years of professional experience as a system engineer specializing in network and security technologies are required. Practical knowledge of core network services including DNS, DHCP, proxy servers, mail relays, load balancers, and RADIUS is essential. Familiarity with products from Cisco, Fortinet, and Check Point is expected, along with initial experience with Microsoft Azure network offerings. The job listing does not specify any particular language requirements beyond the German context of the employer. The working arrangement includes remote work, on-call availability, and occasional site visits. This role suits experienced IT professionals who enjoy a mix of operational support, project implementation, and vendor interaction within a large-scale service provider.