Network System Engineer

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About Aerospacelab

Our mission is supported by an ambitious vertically integrated approach: design & manufacture of small satellites combined with development of earth observation services.

Since its creation in 2018, the company has already grown substantially. Our team gathers more than 25 engineering expertise, from hardware design to software development & data science.

In 2024, Aerospacelab counts offices in Louvain-la-Neuve (Belgium), Liège (Belgium), Toulouse (France), Lausanne (Switzerland) and US West Coast with more than 200 full-time employees, with the ambition to position itself as the European leader in small satellites.

Job Description

We are seeking a skilled and experienced Network System Administrator with a strong background in Fortinet and Palo Alto products to join our dynamic IT team. The ideal candidate will have a minimum of 4 years of professional experience in network administration, along with fluency in both English and French.


    • Network Management:
      • Design, implement, and manage network infrastructure using Fortinet and Palo Alto products.
      • Configure and maintain firewalls, VPNs, intrusion detection/prevention systems (IDS/IPS), and other security appliances.
      • Monitor network performance and ensure system availability and reliability.
    • Security:
      • Develop and enforce network policies and procedures.
      • Perform regular security assessments and vulnerability testing.
      • Respond to and mitigate network security incidents.
    • Support & Maintenance:
      • Provide technical support and troubleshooting for network-related issues.
      • Conduct regular network maintenance, updates, and upgrades.
      • Maintain detailed documentation of network configurations, changes, and upgrades.
    • Collaboration:
      • Work closely with other IT team members to ensure seamless integration of network systems.
      • Collaborate with external vendors and service providers to support and enhance network infrastructure.
      • Train and support end-users and junior staff on network-related technologies and best practices.


    • Education & Certification:
      • Bachelor’s degree in Computer Science, Information Technology, or a related field.
      • Relevant certifications (e.g., Fortinet NSE, Palo Alto PCNSE) are highly desirable.
    • Experience:
      • Minimum of 4 years of hands-on experience in network administration.
      • Proven experience with Fortinet and Palo Alto network products.
      • Strong understanding of network protocols, firewall management, and network security principles.


    • Technical Expertise:
        • In-depth knowledge and hands-on experience with Fortinet firewalls FortiManager, FortiAnalyzer, and other Fortinet security appliances.
        • Proficiency in configuring and managing FortiGate firewall policies, VPNs (site-to-site and remote access), and security profiles.
        • Familiarity with Fortinet SD-WAN and integration of Fortinet products in complex network environments.
        • Strong understanding and practical experience with Palo Alto firewalls, Panorama management, and GlobalProtect VPN.
        • Ability to create and manage security policies, configure NAT, and implement advanced threat prevention features.
        • Knowledge of App-ID, User-ID, and Content-ID technologies within Palo Alto products.
      • Network Security:
        • Thorough understanding of network security concepts, protocols, and best practices.
        • Experience in implementing and managing intrusion detection/prevention systems (IDS/IPS).
        • Proficient in performing security assessments, vulnerability testing, and penetration testing.
      • Network Infrastructure:
        • Solid knowledge of network protocols (TCP/IP, DNS, DHCP, HTTP/S, FTP, etc.) and routing protocols (OSPF, BGP, EIGRP).
        • Experience with VLANs, subnetting, and network segmentation.
        • Familiarity with wireless networking, load balancers, and proxy servers.
    • Analytical and Problem-Solving:
      • Strong analytical skills to diagnose network issues, identify root causes, and implement effective solutions.
      • Ability to conduct thorough network performance analysis and optimize network resources.
      • Proficiency in using network monitoring and diagnostic tools (Wireshark, SolarWinds, PRTG, etc.).
    • Communication:
      • Fluent in both English and French, with excellent verbal and written communication skills.
      • Ability to explain complex technical concepts to non-technical stakeholders.
      • Experience in writing comprehensive documentation, including network diagrams, configuration guides, and troubleshooting procedures.
    • Project Management:
      • Ability to manage multiple projects simultaneously, prioritize tasks, and meet deadlines.
      • Strong organizational skills and attention to detail.
      • Experience in coordinating with cross-functional teams and external vendors.
    • Customer Service:
      • Commitment to providing high-quality support and assistance to end-users and colleagues.
      • Ability to handle and resolve network-related issues promptly and effectively.
      • Strong interpersonal skills to build positive relationships within the team and with external partners.
    • Adaptability and Continuous Learning:
      • Willingness to stay updated with the latest trends and developments in network security technologies.
      • Ability to quickly adapt to new tools, systems, and technologies.
      • Proactive attitude towards continuous learning and professional development, including pursuing relevant certifications and training opportunities.
  • Department

    IT & Security

  • Office


  • Contract type

    Full Time

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What we offer

Build your own career path

Direct impact on the growth of the company

Flat hierarchy

Fast-paced environment

Flexible ways of working

Salary package consistent with your experience