Firewall Administrator — Enterprise Next-Generation Firewall Operations for NATO with security clearance

This is the firewall estate itself, run centrally: installation, central management, policy, patching and the daily discipline of a queue with real response times against it. You would join a small security team in Mons as its firewall specialist. It is a good job for someone who likes the platform side of security — where the answer to a repetitive task is a script, and where a rule change is documented before it is made. What you would be doing Build, install and configure next-generation firewalls, and bring them under central management with the right template and device group settings. Configure high availability, time and name resolution settings, and keep software and threat signatures current through the maintenance windows. Implement, verify and adapt firewall rulesets and policies as requirements change. Work the ticket queue to the agreed response times — four hours for normal events, one hour for high and critical — across phone, mail and chat. Keep logging and log forwarding correct so events reach the central database. Write and maintain standard operating procedures and security documentation, and automate the recurring administration. Troubleshoot with the network and platform teams, and support users on secure cross-domain exchange. What you would bring Solid experience as a firewall administrator on next-generation platforms. Good networking knowledge and familiarity with cyber security tooling. Scripting for automation of routine administration. The temperament for pro-active maintenance — the work is measured in what did not break. Professional English, spoken and written. The work is fully on site in Mons, and delivery is planned in one-week sprints.