Penetration tester

Braine-l'Alleud, BE Deadline: 16-06-2026 Geplaatst: 02-06-2026 #16900

C004909, C004908 Penetration Tester

The Penetration Tester will support NATO cyber security activities by:

  • Conducting web application, infrastructure, and application penetration testing.
  • Participating in and leading Red Team and Blue Team activities during NATO military exercises.
  • Performing security design reviews to ensure compliance with NATO security policies and directives.
  • Providing cyber security consultancy and technical advice to projects and operational entities.
  • Identifying security vulnerabilities and recommending remediation measures.
  • Coordinating with security and accreditation stakeholders, including:
    • NCIA Configuration Control Board (CCB)
    • Security Accreditation Boards (SABs)
    • NATO Security Accreditation Authorities
    • Other NCIA organizational units
  • Preparing and presenting security assessment results to both technical and executive audiences, including senior military leadership.
  • Supporting collaboration between internal and external stakeholders under the direction of the Head of the Penetration Testing Cell.

Required Skills & Experience

Technical Expertise

Minimum 3 years of experience in:

  • Web application penetration testing
  • IT infrastructure penetration testing
  • Network security architecture
  • Security vulnerability assessment (operating systems, software, protocols, and networks)
  • Security tools and technologies evaluation
  • UNIX/Linux and Windows system administration
  • Penetration testing methodologies, tools, and techniques

Programming / Scripting

Experience with at least one of:

  • Python
  • Perl
  • Ruby
  • Shell scripting (Bash, KSH, CSH)

Security Knowledge

Strong understanding of:

  • System and network security
  • Authentication and security protocols
  • Cryptography
  • Application security
  • Malware techniques and protection mechanisms

Analytical & Communication Skills

Ability to:

  • Assess risks and develop mitigation plans
  • Produce high-quality technical reports
  • Write executive summaries and remediation plans
  • Present findings to both technical and non-technical stakeholders

Working Conditions

  • Location: Braine-l'Alleud, Belgium (later moving to Brussels)
  • Work Mode: Full-time on-site
  • Duration: July–December 2026
  • Travel: Approximately 10 days within Belgium
  • Security Clearance: NATO Secret

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