CYBER SECURITY FIREWALL Support 2

Mons, Belgium Deadline: 07-09-2026 Geplaatst: 24-08-2026 #17427

Duties

  • Tasks performed by a contractor include: Build, implement, maintain, and support Next-Generation Firewalls (NGFW) (System Administration).
  • Configure, maintain and review security policies on Next-Generation Firewalls (System Configuration)
  • Central system administration of NGFWs to ensure continuing functionality and availability.
  • Initial systems installation (software, application and threat signatures) and configuration
  • Adding system to central management capability
  • Assign initial template and device group settings
  • Configure date/time/DNS settings
  • Configure high-availability settings
  • Update system software/signatures during pre-defined maintenance windows
  • Implementation and verification of firewall rulesets/policies
  • Adaptation of firewall rulesets/policies Adaptation of email attachment types
  • Configuration of additional firewall rulesets/policies
  • Development of SOPs and other documentation for repetitive activities
  • Produce and maintain comprehensive documentation for all implemented systems
  • Review and update security documentation
  • Technical support in troubleshooting infrastructure and operational issues
  • Collaborate with other teams for a successful resolution;
  • Provide technical support and guidance by answering end-user requests to identify issues in secure cross-domain data exchange
  • Support the team by routinely reviewing the tickets queue to ensure 4 hours response time for normal events and 1 hour response time for high/critical events
  • Provide multi-channel support (phone, email, internal chat)
  • Develop and maintain a repository of scrips to automate recurring systems administration activities.
  • Ensure correct logging and log forwarding configurations to support availability of system events in central log database.
  • Provide pro-active system administration and maintenance to prevent system failures
  • Escalate critical events to appropriate channels within 4 hours
  • Support system upgrading/patching during established maintenance windows
  • Update the configuration of firewall rules/policies based on changing requirements.
  • The primary purpose of Central configuration of firewalls is to ensure that all configuration requests are properly prepared (investigated, evaluated and risk assessed) for consideration, documented and implemented.
  • Document the setup, configuration, installation specifics into the GSS documentation repository
  • Attend internal meetings within GSS team to provide hands-on demonstration and familiarization of firewall systems

Requirement

  • Bachelor's degree in Computer Science, Information Technology, or related field Or equivalent experience.
  • Minimum qualifications required Official firewall certification (such as PCNSA,)
  • Official Network Management certification (such as Network )
  • Official Service Management certification (such as ITIL Foundation)
  • 2 years of experience in IT security, with a focus on Security Tools Management in large organisations.
  • More than 2 years of experience in the following areas: Palo Alto Networks Firewalls and Palo Alto Networks Panorama for Enterprise level deployments
  • More than 2 years of experience in the following areas: Firewall installation and management of other vendors
  • More than 2 years of experience in the following areas: Scripting/Automation (Bash, Python, Ansible)
  • More than 2 years of experience in the following areas: System monitoring and troubleshooting Experience with network protocols and traffic analysis
  • More than 2 years of experience in the following areas: Ability to troubleshoot complex network security issues
  • More than 2 years of experience in the following areas: LAN/WAN networking including protocol network architecture
  • More than 2 years of experience in the following areas: TCP/IP protocols and services
  • Boundary Protection Components deployed within and on the edge of NATO networks.
  • GSS contractor is expected to be a knowledgeable firewall administrator and should have sufficient knowledge in Networks, and Cyber Security Tools.
  • Demonstrable experience of analysing and interpreting system, security and application logs in order to diagnose faults and spot abnormal behaviours.
  • Good engineering skills including programming
  • Profound communication abilities, both written and verbal, with the ability to clearly and successfully articulate complex issues to a variety of audiences and teams
  • The contractor will be required to provide the service 100% on-site at NCIA Mons, Belgium.
  • Required Security Clearance: NATO Cosmic Top Secret

Preferences

  • Understanding of Information Security Practices; relating to the Confidentiality, Integrity and Availability of information (CIA triad.)
  • Possession of Industry leading certification in the area of Cybersecurity such as CISSP, CISM, CISA, GSNA, SANS GIAC
  • In addition to the above, it is desirable for the contracted individual to have working experience and knowledge in the following areas: Experience in working with NATO.
  • In addition to the above, it is desirable for the contracted individual to have working experience and knowledge in the following areas: Experience of working with NATO Communications and Information Agency.
  • In addition to the above, it is desirable for the contracted individual to have working experience and knowledge in the following areas: Experience of working with national Defence or Government entities.
  • Previous work in an international environment comprising both military and civilian elements.

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