Penetration Tester: Red/Blue Team for NATO Security

Spektrum; Maasdijk; On-site; EUR 65,000 - 90,000; Full time

Job summary

Spektrum seeks a Penetration Tester to support NATO security activities by performing penetration testing, security assessments, and design reviews across web applications, IT infrastructure, networks, and applications. The role also supports NATO exercises and provides security guidance to technical teams and stakeholders.

The successful candidate will be based in The Hague, Netherlands, and join a full-time on-site team.

Qualifications

• Strong knowledge of web application penetration testing.
• Strong knowledge of IT infrastructure penetration testing.
• Knowledge of network security architecture and design.
• Ability to identify and assess vulnerabilities in operating systems, software, protocols, and networks.
• Experience using penetration testing tools, techniques, and recognized testing methodologies.
• Knowledge of UNIX and Windows system and network administration.
• Scripting skills in Python, Perl, Ruby, or Bash.
• Strong technical knowledge of system and network security, authentication, cryptography, and application security.
• Ability to evaluate cybersecurity risks and develop mitigation plans.
• Strong technical reporting skills and ability to create executive summaries and remediation plans.
• Strong stakeholder communication and presentation skills.

Responsibilities

• Lead or participate in Red Team and Blue Team activities during NATO exercises.
• Perform web application, infrastructure, and application‑level penetration testing.
• Conduct security design reviews to ensure compliance with NATO policies.
• Provide cybersecurity consultancy and technical security advice to projects and stakeholders.
• Identify and assess security vulnerabilities across operating systems, software, protocols, and networks.
• Evaluate cybersecurity risks and recommend mitigation actions.
• Research and assess security products, tools, and technologies.
• Coordinate with security accreditation bodies and NATO teams.
• Prepare clear penetration testing and security assessment reports for technical and executive audiences.
• Collaborate with the Head of the Penetration Testing Cell and ensure effective stakeholder engagement.

Skills

Web pentest

Infra pentest

Network security

Vulnerability assessment

PenTesting tools

UNIX/Windows admin

Scripting: Python/Perl/Ruby/Bash

Technical reporting

Stakeholder communication

Job description

Spektrum seeks a Penetration Tester to support NATO security activities by performing penetration testing, security assessments, and design reviews across web applications, IT infrastructure, networks, and applications. The role also supports NATO exercises and provides security guidance to technical teams and stakeholders.

The successful candidate will be based in The Hague, Netherlands, and join a full-time on-site team.