Network Security & Infrastructure Engineer
Location : Luxembourg
Type of contract : Freelance
Availability : 3 days per week (part-time)
Responsibilities
- Support the administration, maintenance, and day-to-day operations of the enterprise network and security infrastructure.
- Troubleshoot network and security incidents and provide Level 2 support to internal users and IT teams.
- Manage and maintain Cisco enterprise networking environments, including switches, Wireless LAN Controllers (WLC), Cisco ISE, and Cisco Catalyst Center.
- Administer Check Point and Palo Alto firewalls, including remote access VPN solutions.
- Support and maintain F5 Web Application Firewall (WAF) and MobileIron (Ivanti) MDM solutions.
- Ensure the availability, performance, and security of LAN/WAN, routing, switching, VLAN, and wireless network environments.
- Investigate and resolve connectivity, VPN, Wi-Fi, and authentication issues.
- Contribute to network monitoring, logging, operational documentation, and continuous service improvement.
- Collaborate with the IT Operations team to maintain a reliable, secure, and efficient infrastructure.
Profile
- Proven experience in enterprise network and security operations.
- Strong hands-on expertise with Cisco networking technologies (switching, WLC, Cisco ISE, Cisco Catalyst Center).
- Experience administering Check Point and Palo Alto firewalls, including VPN technologies.
- Knowledge of F5 WAF and MobileIron (Ivanti) MDM is an advantage.
- Solid understanding of LAN/WAN networking, routing, switching, VLANs, wireless technologies, and network security.
- Experience providing Level 2 technical support in an enterprise environment.
- Strong troubleshooting, analytical, and documentation skills.
- Ability to work independently while collaborating effectively within an operations team.
Interested in this opportunity? Feel free to apply or send us your updated CV at anne-catherine.son@cyberr.ai, morgane.zimmer@cyberr.ai and camelia.mana@cyberr.ai
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