AISB-692 Network Security Engineer

Join a highly demanding technical environment where network security is at the heart of strategic operations.

Assignment Context

As part of the continuous strengthening and evolution of its IT infrastructure, a large-scale organization is seeking a Senior Network Security Engineer to ensure optimal security across critical and complex environments.

The assignment takes place in a high-responsibility operational context requiring strong expertise, autonomy, and responsiveness. 

Work mode: Hybrid – mandatory on-site presence at least 3 days per week.

Key Responsibilities

Network Security Design & Implementation

• Define, design, and deploy robust network security strategies.
• Configure, maintain, and optimize security equipment: firewalls (including Palo Alto), VPNs, WAF, proxies (forward and reverse), and load balancers.
• Implement and manage secure access solutions (ZTNA).
• Secure ISP connections, Express Route, WiFi networks, and DNS solutions.
• Administer authentication systems such as TACACS and LDAP.

Network Infrastructure Management

• Manage routing and switching environments (static, dynamic, inter-domain).
• Administer advanced MPLS and IP routing environments.
• Ensure performance, availability, and resilience of network infrastructures.

Monitoring & Incident Management

• Continuously monitor environments to detect threats and anomalies.
• Manage security incidents and coordinate corrective actions.
• Conduct regular security audits and vulnerability assessments.
• Intervene rapidly in case of critical (P1) incidents.

Support & Continuous Improvement

• Provide advanced technical support.
• Collaborate closely with infrastructure, development, and business teams.
• Automate network tasks through scripting to enhance operational efficiency.
• Maintain technical documentation and knowledge sharing.

Profile Required

Experience

• Minimum 5–8 years of experience in network security within complex environments.
• Recent and advanced experience with:
  • Firewall (expert), especially Palo Alto
  • IP Routing (expert)
  • Switching (expert)
  • MPLS (expert)
  • VPN (advanced)
  • Algosec (advanced)
  • Express Route (advanced)
  • LDAP (expert)
  • Proxy & WAF (intermediate)
  • Load Balancing (intermediate)
  • Scripting (intermediate)

Proven ability to independently manage complex Palo Alto firewall operations is highly expected.

Technical Skills

• Deep expertise in network security and secure architectures.
• Strong knowledge of routing protocols and security standards.
• Solid understanding of cloud security and data protection (in transit and at rest).
• Familiarity with operating systems used in network environments.
• Knowledge of cryptographic standards and secure communication protocols.
• Automation skills using common scripting languages.

Soft Skills

• Strong analytical and problem-solving abilities.
• Clear communication with both technical and non-technical stakeholders.
• Technical leadership and mentoring capability.
• Results-oriented mindset and strong sense of responsibility.
• High attention to detail and documentation quality.
• Effective time and stress management.
• Ability to work autonomously with structured reporting.
• Curiosity and openness to emerging technologies.

Languages

• French or Dutch: Native or bilingual proficiency
• Second language (French or Dutch): Good level
• English: Professional working proficiency

Certifications

Network security certifications are considered a strong asset (e.g., Palo Alto certifications, CISSP, CCNP/CCIE Security or equivalent).

Commitment to continuous professional development is highly valued.

Why Apply?

This opportunity offers a challenging technical environment, high-impact responsibilities, and a role where expertise and autonomy are truly valued.

Application

Candidates meeting the above criteria are invited to submit their application without delay to contribute to a demanding and strategic technical environment.