Senior Cyber Penetration Tester - Red/Blue Team Lead

Spektrum; Henegouwen; On-site; EUR 80,000 - 110,000; Full time

Job summary

Spektrum is seeking an experienced Penetration Tester to support cybersecurity testing, security assessments, and NATO exercises. The role focuses on web application and infrastructure testing, network security, vulnerability assessment, and security consultancy.

You will also support Red/Blue Team activities, present security findings to NATO stakeholders and collaborate with NCIA governance bodies. Full-time on-site in Mons, with travel within Belgium and a December 31, 2026 end date.

Qualifications

• More than 3 years of extensive knowledge in penetration testing and vulnerability assessment.
• Experience presenting findings to senior stakeholders and participating in NATO exercises.
• Ability to work in high-security environments and with NATO standards.

Responsibilities

• Lead or participate in Red Team and Blue Team activities during NATO exercises.
• Conduct penetration testing of web applications, IT infrastructure and software.
• Assess security vulnerabilities in operating systems, networks and protocols.
• Review security designs for compliance with NATO policies.
• Provide cybersecurity consultancy and remediation recommendations.
• Prepare structured penetration testing reports and executive summaries.
• Collaborate with security boards and NATO stakeholders on risk mitigation.
• Coordinate with internal and external teams to improve security posture.

Skills

Penetration testing

Vulnerability assessment

Network security

Security consultancy

System administration

Tools

Python

Perl

Ruby

Shell scripting

Job description

Spektrum is seeking an experienced Penetration Tester to support cybersecurity testing, security assessments, and NATO exercises. The role focuses on web application and infrastructure testing, network security, vulnerability assessment, and security consultancy.

You will also support Red/Blue Team activities, present security findings to NATO stakeholders and collaborate with NCIA governance bodies. Full-time on-site in Mons, with travel within Belgium and a December 31, 2026 end date.