Senior Penetration Tester

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 supports apex purchasers (NATO, UN, EU, and National Government and Defence) and their Tier 1 supplier ecosystem with a wide range of specialist services. We provide our clients with professional services, specialised aerospace and defence sales, delivery, and operational subject matter expertise. We are looking for personnel to join our team and support key client projects.

Who we are supporting

The NATO Communication and Information Agency (NCIA) is responsible for providing secure and effective communications and information technology (IT) services to NATO's member countries and its partners. The agency was established in 2012 and is headquartered in Brussels, Belgium.

The NCIA provides a wide range of services, including:

• Cyber Security: The NCIA provides advanced cybersecurity solutions to protect NATO's communication networks and information systems against cyber threats.
• Command and Control Systems: The NCIA develops and maintains the systems used by NATO's military commanders to plan and execute operations.
• Satellite Communications: The NCIA provides satellite communications services to enable secure and reliable communications between NATO forces.
• Electronic Warfare: The NCIA provides electronic warfare services to support NATO's mission to detect, deny, and defeat threats to its communication networks.
• Information Management: The NCIA manages NATO's information technology infrastructure, including its databases, applications, and servers.

Overall, the NCIA plays a critical role in ensuring the security and effectiveness of NATO's communication and information technology capabilities.

The program

Assistance and Advisory Service (AAS)

The NATO Communications and Information Agency (NCI Agency) is NATO's principal C3 capability deliverer and CIS service provider. It provides, maintains and defends the NATO enterprise-wide information technology infrastructure to enable Allies to consult together under Article IV, and, when required, stand together in the face of attack under Article V.

To provide these critical services, in the modern evolving dynamic environment the NCI Agency needs to build and maintain high performance-engaged workforce. The NCI Agency workforce strategically consists of three major categorise's: NATO International Civilians (NIC)'s, Military (Mil), and Interim Workforce Consultants (IWC)'s. The IWCs are a critical part of the overall NCI Agency workforce and make up approximately 15 percent of the total workforce.

Role ID – C004907

Role Background

NCIA requires an experienced Penetration Tester to support cybersecurity testing, security assessments and NATO military exercises.

The role focuses on web application and infrastructure penetration testing, network security, vulnerability assessment and security consultancy. The contractor will also support Red/Blue Team activities and advise NATO stakeholders on security risks and remediation.

Role Duties and Responsibilities

• Lead or participate in Red Team and Blue Team activities during NATO military exercises.
• Conduct penetration testing of web applications, IT infrastructure and applications.
• Assess security vulnerabilities in operating systems, software, networks and protocols.
• Review security designs to ensure compliance with NATO policies and directives.
• Provide cybersecurity consultancy and recommendations to projects and technical teams.
• Evaluate security risks and recommend mitigation measures.
• Research and assess security technologies and products.
• Prepare structured penetration testing reports, including technical findings, executive summaries and remediation plans.
• Present security assessment results to technical teams, executives and senior military leadership.
• Collaborate with the NCIA Configuration Control Board, Security Accreditation Boards and NATO Security Accreditation Authorities.
• Coordinate with internal and external stakeholders and the Head of the Penetration Testing Cell.
• Network security architecture and design.
• Vulnerability assessment across operating systems, applications, protocols and networks.
• Penetration testing tools, techniques and recognised testing methodologies.
• UNIX and Windows system/network administration.
• Scripting in at least one of:
• Python
• Perl
• Ruby
• Shell scripting (Bash, Ksh or Csh)
• System and network security.
• Authentication and security protocols.
• Cryptography and application security.
• Malware infection techniques and protection technologies.
• Security risk assessment and mitigation planning.
• Security product and technology evaluation.
• Technical report writing for different audiences.
• Ability to communicate security findings to both technical and executive stakeholders.

Experience

More than 3 years of extensive knowledge and experience in the technical areas; including penetration testing, vulnerability assessment, network security and related technologies.

The role also requires the ability to present findings to senior stakeholders and participate in NATO military exercises.

Working Location

Working Policy

Full-time on-site in Mons.

• End date: 31 December 2026 with possibility of extension.
• Total scope: 400 hours
• Working conditions: Normal office environment
• Travel: 10 days of travel within Belgium are foreseen

Travel

• Some travel to other NATO sites may be required

Security Clearance

• Valid National or NATO Secret personal security clearance