Penetration Tester 5

Vector Synergy; Brussel; On-site; EUR 60,000 - 90,000; Full time

Job summary

Vector Synergy seeks a Penetration Tester 5 in Mons to lead and participate in NATO red/blue team exercises. You will perform web, infrastructure and application-level pentesting and review security designs for NATO policy compliance.

The role requires extensive hands-on experience (3+ years) in pentesting, vulnerability assessment, and security protocols, with a focus on robust defense against threats and malware infection techniques.

Qualifications

• Extensive knowledge and experience (over 3 years) in IT infrastructure pentesting.
• Extensive knowledge and experience (over 3 years) in assessing security vulnerabilities across OS, software, protocols and networks.
• Technical knowledge in system and network security, authentication, cryptography and protection technologies.

Responsibilities

• Leading and/or participating in Red/Blue Team activities during NATO exercises.
• Providing web, infrastructure and application-level penetration testing.
• Reviewing security designs to ensure NATO policy compliant implementations.

Skills

IT infrastructure pentesting

Security vulnerabilities assessment

Security design & cryptography

Job description

Penetration Tester 5

Location: Mons, Belgium

Security Clearance: NATO Secret

Reference No: RFQ C00490 7 / Mons

Deadline For Application: 20/10 /2026

Skills, Knowledge, Experience Required

• Extensive knowledge and experience (more than 3 years) in IT infrastructure penetration testing ;
• Extensive knowledge and experience (more than 3 years) in a ssessing security vulnerabilities within OS, software, protocols & networks ;
• T echnical knowledge in system and network security, authentication and security protocols, cryptography, application security, as well as, malware infection techniques and protection technologies .

Duties/role

• Leading and/or being part of the Red/Blue Team during NATO military exercises;
• Providing web, infrastructure, and application-level penetration testing;
• Providing security design reviews to ensure compliance with NATO policies and directives .