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gr3ym00n

Nicolas D

@gr3ym00n

Pentester and Cybersecurity Auditor

France
French
About me
Specializing in offensive cybersecurity and penetration testing (Pentest), GreyMoon Security supports companies in securing their information systems. Our Expertise: - Web, Mobile, and API Security Audits - Internal & External Penetration Testing - Social Engineering and Custom Red Team Exercises Based in Clermont-Ferrand (France), I prioritize working closely with local organizations, but I also operate throughout France and Europe (on-site or remotely) to secure your critical infrastructure.... Read more

Skills

g
gr3ym00n
Nicolas D
Offline • 

See my services

Programming & Tech
I will perform a professional web or external penetration test
From$2,100 / projectMore details
Programming & Tech
I will perform a professional internal penetration test
From$2,100 / projectMore details

Work experience

Pentester / Cybersecurity Auditor

ImmunIT SARL • Full-time

Sep 2025 - Feb 2026 • 5 mos

Conducting penetration tests (Web, Active Directory, External, Mobile) to help clients identify and remediate vulnerabilities within their systems.

Pentester / Cybersecurity Auditor

NEVERHACK

Feb 2024 - Sep 2025 • 1 yr 7 mos

Penetration Testing, Audits, Red Teaming, Phishing Simulations, and other Cybersecurity Consulting services.

Cybersecurity source code auditor

DGA - Direction générale de l'armement • Full-time

Oct 2022 - Mar 2024 • 1 yr 5 mos

Security assessment of applications through source code analysis. Direct collaboration with developers to implement remediation.