
Christian Xiang
Bug Hunter
Salaire / Taux journalier
47600 Francescas, France
Mobilité : Paris, 92400 Courbevoie
Freelance, ouvert au CDI
Peut venir sur site
Expertises
Langues
À propos
Introduction
With 3 years of hands-on experience as a pentester through my work-study program at Wancore and Cyna, I've built a deep technical foundation in offensive security. I don't just find vulnerabilities. I understand why they exist, how they're exploited in the real world, and what it actually takes to fix them. That attacker mindset is what sets me apart. Over the years I've developed hands-on expertise across the following domains: - Web application & API testing - Active Directory exploitation & IAM misconfigurations - Network infrastructure assessments - Bug bounty research (YesWeHack) - Vulnerability documentation & remediation reporting And also theses expertise is backed by industry-recognized certifications : - PNPT (Practical Network Penetration Tester) — Full penetration testing methodology, from reconnaissance to reporting, on real-world network environments - PJPT (Practical Junior Penetration Tester) — Core penetration testing skills across internal network assessments - CRTP (Certified Red Team Professional) — Active Directory attacks and red team operations in enterprise Windows environments - EJPTv2 (eLearnSecurity Junior Penetration Tester) — Fundamental offensive security concepts, network exploitation and web application testing Beyond the Technical Side, I've always thrived at the intersection of security and people. I communicate complex findings clearly, whether it's a detailed technical report for a security engineer or an executive summary for a CISO. I adapt, I listen, and I make sure my work actually gets used, not just filed away. I want to keep growing in offensive security, pushing my technical skills further and taking on increasingly complex challenges. Along the way, I've naturally developed an interest in the risk and governance side of cybersecurity not as a pivot, but because it genuinely complements the technical work. When you spend time finding what breaks, you start thinking about why it breaks, what it costs, and how organizations should prioritize fixing it. That broader perspective is something I want to keep building on. Trilingual (French, English, Mandarin), genuinely curious and self-directed. I don't wait to be told what to learn next. I seek out challenges because that's where growth happens. If you're looking for someone who combines deep technical credibility with the maturity to engage at a strategic level, let's connect.
Expérience de travail
Bug Hunter
YesWeHackFreelance
janv. 2026 - Présent
10 mois
Pentester
Cyna
avr. 2025 - Présent
1 an 7 mois
Penetration Tester
WANCORE | La Home Sweet Company
déc. 2023 - mai 2025
1 an 6 mois
La Defense
Conseiller ventes
Moncler
déc. 2018 - août 2022
3 ans 9 mois
Paris, France
Conseiller ventes
Valentino
sept. 2018 - déc. 2018
4 mois
Paris, France
Formation
OTERIA
RNCP Niveau 7 - Expert technique de la Cybersécurité
2024 - 2026
1 an 11 mois
Ecole 2600
RNCP Niveau 7 , Cybersécurité
2023 - 2024
1 an 10 mois
La formation de l’école 2600 est en alternance et couvre tous les aspects de la cybersécurité, défensifs comme offensifs et organisationnels dans les domaines : De la sécurité des OS et des logiciels De la sécurité des réseaux IT, OT, IOT De la cyberdéfense et de la gestion de crise (organisationnelle et opérationnelle) De la géopolitique et de l’analyse de la menace De l'ingénierie sociale et de l’OSINT Des techniques offensives et d’analyse de malware La cybersécurité, telle qu’abordée durant la formation, est un ensemble de compétences et de savoirs techniques et de gouvernance au service de la gestion de crise (avant, pendant et après l’incident). L’école 2600 délivre le titre d’expert de la sécurité des données, des systèmes et des réseaux - RNCP 7 (BAC+5)
Jedha Bootcamp
Cybersécurité , Pentester
2022 - 2023
1 an 1 mois
Résultat : Attestation Auditeur Sécurité
- CTF BruteForce - Networking - Pentest Web - Exploitation - Post Exploitation - Présentation d'une CVE
Licences et certifications
CRTP
Délivré le : avr. 2025
PNPT
Délivré le : déc. 2024
PJPT
Délivré le : nov. 2024
API Penetration Testing
Délivré le : juin 2024
Junior Penetration Tester
Délivré le : sept. 2023