Senior Security & Penetration Tester

ThoughtLabs Belgium; Strasbourg; On-site; EUR 70,000 - 110,000; Full time

Job summary

ThoughtLabs Belgium is seeking a senior IT security consultant with extensive hands-on experience in penetration testing across web, mobile, and thick clients. You will contribute to security assessments, architecture reviews, and detailed reporting, while ensuring confidentiality in high-sensitivity environments.

The role requires strong English command, proven consulting skills, and familiarity with SAST/DAST tooling (SonarQube, Fortify, OWASP) and related security standards.

Qualifications

• University degree in IT with relevant experience (7+ years).
• Experience with penetration testing across web, mobile and thick clients.
• Consulting experience in confidential environments is required.
• SAST/DAST tooling and standards experience with the listed tools.
• Experience in technical analysis, reporting and documentation.

Skills

Penetration testing

Security consulting

Threat assessment

Technical writing

Security reporting

SAST/DAST knowledge

Code review

English proficiency

Education

University degree in IT

Tools

SonarQube

OWASP

FortifySCA

NVD

Fortify WebInspect

OWASP ZAP

Burp Suite

Kali Linux

GitHub Advanced Security

JFrog XRay

JFrog Curation

Advanced Cluster Security

Job description

ThoughtLabs Belgium is seeking a senior IT security consultant with extensive hands-on experience in penetration testing across web, mobile, and thick clients. You will contribute to security assessments, architecture reviews, and detailed reporting, while ensuring confidentiality in high-sensitivity environments.

The role requires strong English command, proven consulting skills, and familiarity with SAST/DAST tooling (SonarQube, Fortify, OWASP) and related security standards.