Senior IT Network Administrator (m/f/d)
As a Senior IT Network Administrator (m/f/d) in Düsseldorf, you ensure a network infrastructure that meets current best practices as well as company requirements whilst taking responsibility for the administration, optimization and further development of our network landscape.
Your tasks
- You are the technical expert for network administration and look after the continuous development of our network environment, especially focusing on Fortinet products (FortiGate, FortiSwitch, FortiMail)
- You will be responsible for the administration and optimization of firewalls, switches, routing, SD-WAN, VPN and WLAN
- As an expert in IT security, you analyze security incidents and actively work on the implementation and realization of security guidelines
- You manage and coordinate rollouts of new IT systems and migration projects as well as contribute your technical planning expertise
- As a service owner you are responsible for open source solutions such as Nextcloud, TrueNAS, LAMP/LEMP, WAZUH, Proxmox VE
- Additionally, you will provide second-level support and assist our internal users in case of technical issues
Your profile
- You have successfully graduated with a degree in computer science or a comparable apprenticeship as an information technology specialist
- You possess at least 3-5 years of relevant professional experience, ideally in a consulting firm or an auditing company
- You aquired profound knowledge of working with Fortinet products and are well versed in dealing with 1G-100G Ethernet networks, VLAN, switching, routing and firewall rules and regulations
- You have relevant experience with VMware vSphere, Veeam, Proxmox VE and Debian-based Linux distributions
- In Addition, you are familiar with monitoring and logging tools such as CheckMK and FortiAnalyzer
- Furthermore, you are experienced in planning and implementing IT projects and migrations, especially in the context of mergers and acquisitions (M&A)
We offer benefits with sincere value
It is clear that we reward outstanding work accordingly - and offer an environment that meets your needs.
You can look forward to enjoying the following benefits

We look forward to receiving your application
Submit your application (CV, academic certificates and transcripts including school diploma as well as any proof of employment) - we will get back to you as soon as we have reviewed your documents.
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