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Penetration tester NATO security clearance

Job in 2490, Den Haag, Netherlands
Listing for: Wlgroup
Full Time position
Listed on 2026-06-06
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Engineer, Network Security, Security Manager
Salary/Wage Range or Industry Benchmark: 60000 - 80000 EUR Yearly EUR 60000.00 80000.00 YEAR
Job Description & How to Apply Below
Position: Penetration tester for NATO with security clearance

Would you like to join the leading international intergovernmental organization? In this high-impact role, you will lead and participate in Red/Blue Team operations during NATO military exercises, conducting web, infrastructure, and application-level penetration testing across some of the most security-sensitive environments in the world. You will not simply run tools—you will think like an adversary, uncover hidden vulnerabilities, and help NATO stay ahead of evolving cyber threats.

Responsibilities
  • Lead and/or be part of the Red/Blue Team during NATO military exercises
  • Provide web, infrastructure and application level penetration testing
  • Provide security design reviews to ensure compliance with NATO policies and directives
  • Provide security consultancy and advice to projects, plans, and other entities
  • Build and sustain effective communications with different stakeholders; specifically, the NCIA Configuration Control Board, Security Accreditation Boards, NATO Security Accreditation Authorities, and NCI Agency organization units supporting accreditation processes
  • Brief at both executive and technical levels on security reports and testing outcome, including at flag officer level
  • In co‑ordination with the Head of the Penetration testing Cell, ensure proactive collaboration and coordination with internal and external stakeholders
Essential Qualifications & Experience
  • Web application penetration testing
  • IT infrastructure penetration testing
  • Network security architecture design
  • Assessing security vulnerabilities within OS, software, protocols & networks
  • Researching and evaluating security products & technologies
  • Knowledge in system and network administration of UNIX and Windows systems
  • Use of penetration testing tools, techniques, and recognized testing methodologies
  • Scripting skills in at least one of the following:
    Perl, Python, Ruby, shell (bash, ksh, csh)
  • Technical knowledge in system and network security, authentication and security protocols, cryptography, application security, as well as, malware infection techniques and protection technologies
  • Ability to evaluate risks and formulate mitigation plans
  • Proven ability to write clear and structured technical reports including executive summary, technical findings and remediation plan for several different audiences
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