Deadline Date: Wednesday 14 January 2026
Requirement: Penetration Tester
Location: Mons, BE
Full Time On-Site: Yes
Time On-Site: 100%
Total Scope of the request (hours): 1460
Required Start Date: 23 February 2026
End Contract Date: 31 December 2026
Required Security Clearance: NATO SECRET
Duties & Role:
The duties of the individual mainly focus on:
* 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.
Skill, Knowledge & Experience:
* The candidate must have a currently active NATO SECRET security clearance
* Extensive knowledge and experience (more than 3 years) in web application penetration testing;
* Extensive knowledge and experience (more than 3 years) in IT infrastructure penetration testing;
* Extensive knowledge and experience (more than 3 years) network security architecture design;
* Extensive knowledge and experience (more than 3 years) in assessing security vulnerabilities within OS, software, protocols & networks;
* Extensive knowledge and experience (more than 3 years) in researching and evaluating security products & technologies;
* Knowledge in system and network administration of UNIX and Windows systems;
* Extensive knowledge and experience (more than 3 years) in 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 plan for several different audiences.