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Penetration Tester — Web, Infrastructure and Red Team for NATO with security clearance

WLG


Job Location:

Braine-l'Alleud - Belgium

Monthly Salary: Not provided by the employer
Posted: 16 September 2026 (2 days ago)
Application Deadline: 14 December 2026
Vacancies: 1 Vacancy

Job Summary

A multinational defence organisation is adding two penetration testers to itsoffensive security cell. The work is a genuine mix: hands-on testing red and blue team playduring large military exercises and the design reviews that stop a weakness being built in thefirst place.

What you would be doing

  • Testing web applications infrastructure and application layers with the tooling andmethodology the job deserves rather than a scanner and a template.
  • Leading or joining red and blue team activity during military exercises.
  • Reviewing security designs against policy and advising projects before decisions harden.
  • Briefing what you found to engineers to boards and to senior officers and writing it upso each audience can act on it.
  • Working closely with accreditation and configuration control bodies so findings turn intofixes.

What you would bring

  • More than three years of web application and IT infrastructure penetration testing.
  • Network security architecture and vulnerability assessment across operating systemssoftware protocols and networks.
  • System and network administration on both UNIX and Windows.
  • Scripting in at least one of Perl Python Ruby or a shell.
  • Authentication and security protocols cryptography application security malware techniquesand the defences against them.
  • Report writing you are proud of: executive summary technical findings a remediation plan.

Two positions are open on the same terms on-site near Brussels.


About Company

Company Logo

Work Life Group Sp. z o.o., agencja zatrudnienia (employment agency) KRAZ no. 19578. NIP 7010247728. ul. Nowogrodzka 50/54 lok. 515, 00-695 Warszawa, Poland.

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