(Junior/Regular) Network and Firewall Administrator (f/m)

Your responsibilities:

• WAN operations: Diagnose and resolve WAN / VPN links incidents; configure approved routing and WAN solutions; coordinate service provider troubleshooting
• LAN, WLAN and routing: Design and implement standard LAN, WLAN, switching, routing and redundancy solutions within approved patterns, while managing firmware, configuration baselines and production changes
• Firewall, network security and NAC: Administer firewall rules, VPNs and NAC policies; resolve authentication, segmentation and access-control issues; support vulnerability remediation and configuration hardening
• Incident and problem management: Resolve incidents, perform structured root-cause analysis and implement approved preventive actions
• Lifecycle, capacity and resilience: Maintain lifecycle, capacity and obsolescence information; coordinate upgrades, replacements, failover tests and resilience improvements; provide technical input to budget and renewal planning
• Projects, documentation and knowledge sharing: Deliver technical work packages, prepare designs, diagrams, implementation and handover documentation

Our requirements:

• Relevant IT education, technical training or equivalent practical expertise
• Experience in networking, firewall administration or a related infrastructure role
• Good working knowledge of TCP/IP, routing, switching, VLANs, WLAN, VPN, DNS and DHCP
• Practical experience administering enterprise firewalls and network access control solutions
• Experience with monitoring and with incident, problem and change management processes
• Ability to create technical designs, implementation plans and rollback plans within established standards
• Independent, methodical problem-solving skills and sound judgement regarding escalation, risk and business impact
• Clear technical communication in English and the ability to work across teams, suppliers and international stakeholders

An additional advantage will be:

• Vendor technologies: Experience with Fortinet, Aruba, Cisco or comparable enterprise network and security platforms
• Certifications: Associate- or professional-level network/security vendor certification, or ITIL certification
• Automation: Practical scripting or network automation skills
• Operational environment: Experience supporting international organisations or production locations, plus a driving licence and willingness to travel when required