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Julien L.JL

Julien L.

Cybersecurity Expert | Pentester - RedTeam (OSCP)

€600/day
Montpellier, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Julien

Cybersecurity expert, I offer comprehensive offensive security services as well as consulting in other cyber domains such as governance, risk analysis, purple team missions...

With over 5 years of experience, I specialize in external and internal penetration testing using various methodologies (black/grey/white box).

My technical skills cover a wide range of cybersecurity tools and methodologies, including (but not limited to):

- Web attacks via OWASP Top 10
- Reconnaissance (OSINT) prior to penetration testing
- Active Directory attacks up to domain compromise
- SIEM (Wazuh Stack) to strengthen your Blue Team
- Reverse Engineering on 32/64 bits, .apk (Android)
- Physical intrusions, to identify weaknesses in your physical security.

I can help you secure your systems, applications, and infrastructure, while maintaining a methodical approach during penetration tests. I am not hesitant to simplify and be pedagogical for non-technical stakeholders, especially during reporting phases.

Feel free to contact me to discuss your cybersecurity needs. I would be delighted to chat with you, answer your questions, and propose solutions tailored to your situation.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Montpellier (up to 20km), Uzès (up to 20km), Alès (up to 20km), Nîmes (up to 20km)

Experience

  • FRANCE TRAVAIL
    RedTeam Product Owner | Cybersecurity Engineer
    September 2023 - Today (2 years and 9 months)
    Castelnau-le-Lez, France
  • SNS SECURITY - Service Network Security
    Offensive Security Consultant | Pentester
    May 2021 - September 2023 (2 years and 4 months)
    Montpellier, France
    Projects Section
    - Conducting penetration tests from start to finish (from project launch to closure)
    - Conducting organizational audits based on ANSSI framework via France Relance
    Pentest Section
    - Passive reconnaissance (OSINT) and active reconnaissance (Mapping, enumeration)
    - External / Internal / Physical Penetration Tests
    - Social Engineering (Physical Intrusion / Spear-phishing)
    Technical Section
    - Web Pentest via OWASP Top 10: IDOR, CSRF, SQLi, LFI/RFI, SSRF, XXE..
    - REST API & Websockets
    - Powershell / Python / Bash Scripting
    - Active Directory: LDAP injection / Kerberoasting / Token Impersonation / AV Bypass / NTLM Relay / Bloodhound...
    - Reverse Engineering on APK (Frida / ADB): SSL Pinning, code audit, static and dynamic analysis (Genymotion + MobSF)
  • ITK
    Full Stack Developer
    October 2019 - May 2021 (1 year and 7 months)
    Clapiers, France
    Front-end Development:
    - Angular 7+
    - Material UI
    Back-end Development:
    - Kotlin - Springboot
    Continuous Integration and Development
    Cybersecurity in relation to the CISO (Internal Pentest + study of an IPS/IDS solution)

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Education

  • Information Systems Manager with a specialization in Cybersecurity, 5th year
    CESI School of Alternating Higher Education
    2021
    Manager des systèmes d'information option cybersécurité, 5e année
  • 4th year, Software Engineering Manager
    CESI Alternance
    2019
    4 ème année, Responsable en Ingénierie des logiciels

Skill set (13)

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