IT Network Administrator responsible for designing and implementing secure IT infrastructures at FlexIT Consulting. Focused on network administration, server operation, and customer consulting.
Responsibilities
Planning, design and deployment of high‑performance network environments (switching, routing, LAN, WLAN, VPN)
Design, setup and operation of modern next‑gen firewalls (e.g., Sophos XGS)
Implementation of security standards such as hardening, Zero Trust, port security, NAC and RBAC
Administration of heterogeneous Windows and Linux server landscapes, Active Directory and virtualization
Planning, site survey and operation of professional WLAN infrastructures (e.g., ARUBA Central)
Proactive monitoring as well as analysis and remediation of complex network and infrastructure incidents (2nd/3rd level)
Preparation of clear system and project documentation and structured handovers to ongoing IT operations
Close coordination with project management and sales; technical consulting for customers
Requirements
Completed technical training (e.g., Fachinformatiker/IT specialist), a degree in IT or an equivalent qualification
Several years of practical experience in IT security and firewall operations (2nd/3rd level), ideally with Sophos XGS
Solid knowledge of network administration (switching, routing, VLANs), preferably with ARUBA Central
Experience in server administration (Windows Server, Active Directory) and virtualization (VMware/Hyper‑V)
Proficient in professional WLAN management and AP design concepts
Analytical, structured, self‑reliant and quality‑oriented
Confident, service‑oriented manner; able to engage with customers and colleagues on equal terms; very good German and good English skills
Enjoy working in varied customer environments and hold a Class B driving licence
Motivated to continuously advance through training and certifications (e.g., Sophos XGS, Aruba Central, Microsoft)
Benefits
Secure position in an established company with long‑term prospects
Exciting, varied projects in networking, IT security and infrastructure
Modern work environment with high‑quality technical equipment
Individual training and certification programs (e.g., Sophos, Aruba, Microsoft)
Flexible working hours and the option for partial remote work
Short decision‑making paths and significant autonomy in technical matters
A collegial, appreciative team with a genuine hands‑on mentality
Company car or pool vehicle for customer appointments (depending on position and experience)
Attractive salary package with additional voluntary benefits
30 days' annual leave plus additional days off for special occasions
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