Network Infrastructure System Administrator (m/f/d)

The ZIB is the central IT service provider for the Lower Saxony judiciary and is responsible for a modern IT infrastructure with approximately 23,500 clients. In addition, our team of over 400 colleagues manages numerous digitization projects aimed at modernizing the judiciary. To strengthen our team in Department SG3103 – Networks, we are seeking a Network Infrastructure System Administrator (f/m/d). Department 3103 is based in Celle. Your place of work can be flexibly assigned to a Lower Saxony judicial authority near your home.

Responsibilities

• Operation, monitoring, and troubleshooting of the network infrastructure
• Operation, monitoring, and troubleshooting of central network gateways
• Management of Internet access
• Patch and release management for all system components
• Creation and further development of automated processes / creation of scripts
• Development and implementation of technical concepts for the infrastructure
• Collaboration on innovative IT infrastructure projects for the judiciary
• Visualization and documentation of project and work results

Qualifications

• A relevant college degree (e.g., computer science) and at least two years of professional experience, or equivalent skills and experience
• Prior experience in network administration and strong knowledge of routing, switching, firewalls, TCP/IP, WAN, VLAN, and Wi‑Fi networks
• Proficient in analyzing network protocols using various tools
• Basic understanding of current security technologies, particularly firewalls, and possibly IDS and IPS systems
• Good general knowledge of Linux and MS Windows Server, as well as MS Windows client operating systems
• Experience working with one or more of the following vendors: Cisco, Check Point, Alcatel Lucent Enterprise, Extreme Networks, Fortinet

What we also expect

• Ability to work in a team, initiative, and a service‑oriented mindset
• German language skills corresponding to level C1 of the Common European Framework of Reference for Languages, as well as English language skills typical for the IT sector
• Willingness to undergo a security clearance check in accordance with Section 7(1) of the Lower Saxony Security Clearance Act (Nds. SÜG)
• Willingness to undertake occasional business trips within Germany

What we offer

• A permanent and secure position in the Lower Saxony judiciary with compensation based on the collective bargaining agreement—depending on individual qualifications—up to pay grade 11 under the Collective Agreement for the Federal States (TV‑L), including an annual bonus (Christmas bonus) and an additional company pension plan
• Flexibility through flex time and telecommuting, allowing up to 90% of work to be performed from home
• Thorough onboarding, excellent training opportunities, and good career advancement prospects
• Company‑sponsored health and wellness programs, e.g., corporate fitness
• Attractive additional benefits, e.g., special offers through Corporate Benefits
• The possibility of becoming a civil servant (provided personal and budgetary requirements are met)

Application Process

We look forward to receiving your detailed application by April 15, 2026, via email, quoting reference number 5112 ZIB E 31/26, to

or

Central IT Operations, Lower Saxony Justice System

SG 1001 - Human Resources, Organization, and Public Relations

Mühlenstraße 5

26122 Oldenburg

For technical inquiries, please call 05141‑5937‑1227 (Mr. Jarosch). For questions regarding the hiring process, please call 05141‑5937‑1423 (Mr. Schweifel).

Equal Opportunity

The State of Lower Saxony actively promotes the professional development of women in fields and positions where they are underrepresented. Applications from women are therefore particularly welcome in accordance with the NGG.

Applicants with severe disabilities will be given preferential consideration if they have the same qualifications and abilities.