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Penetration Tester

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Onsite

Penetration Tester

UpcoMinds

Penetration Tester

Skills

RubyPythonConsulting CybersecurityCompliance

2 days ago

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Important information


Contract type:

Freelance / Contract

Location:

The Hague, Netherlands

Work mode:

Onsite

Published on:

23 October 2026

What they need


We’re Hiring: Penetration Testing Engineer ( NATO Project )

Location: The Hague, Netherlands

Clearance: NATO SECRET required

Job Description:

We are looking for a Penetration Tester on behalf of our clients to work on NATO projects.

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.

Requirements:

  • 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 Skill, Knowledge & Experience: plan for several different audiences
  • Active NATO SECRET security clearance.

Founded in 1997 in Brussels, UpcoMinds has grown into a trusted IT partner, specializing in Project Development, Consulting, Strategic Teaming, and R&D & Innovation.

With offices in Belgium, Greece, and Cyprus, we empower organizations across Europe to deliver complex, high-impact technology initiatives that drive strategic, operational, and digital transformation.

Our team of 200+ top-tier professionals brings deep expertise and agility to every engagement. Working through in an agile, hybrid operating model, we combine on-site collaboration with distributed delivery to provide speed, adaptability, and localized attention, all at a multinational scale.

Find out more about us at www.upcominds.com

We commit to promote Inclusion & Diversity by creating a working environment where all employees are treated with dignity and respect and where individual differences are valued. We offer equal opportunity in all aspects of employment.

Our recruitment consultants will go through your Curriculum Vitae as soon as possible and get back to you to discuss the opportunity for which you apply. If you don’t hear from us in the coming ten (10) working days, you may consider that you have not been selected for the particular job.

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