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Hippolyte C.HC

Hippolyte C.

Cyber Detection Engineer | AI/ML

€650/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Hippolyte

I design cyber threat detection engines by integrating AI and machine learning approaches into security pipelines.

I have developed or contributed to developing:
- Detection of DGA-generated domains (RandomForest n-grams) integrated into an engine to detect bursts over a time window;
- Phishing identification through HTML page analysis (XGBoost);
- Authentication log scoring: behavioral modeling on Windows logs (Sysmon, Event IDs) to detect abnormal access via anomaly models (Isolation Forest, OCSVM);
- LLM integration in SOC pipelines: alert enrichment and contextualization.

CTI Projects:
- Malware clustering by TLSH similarity: automatically group malware by code proximity and map their associated infrastructures.
- CTLog monitoring: real-time monitoring of new TLS certificates issued to detect phishing and typosquatting targeting states.

Target Audience:
- Security solution providers;
- SOCs;
- Cyber R&D teams;
- Organizations looking to industrialize their detection or integrate AI into their security pipelines.
  • French

    Native or bilingual

  • English

    Fluent

  • Spanish

    Basic

  • Arabic

    Basic

Can work on-site
Paris (up to 50km)

Experience

  • Gatewatcher
    R&D ENGINEER & CTI ANALYST
    February 2022 - February 2025 (3 years)
    Development and improvement of detection engines and product features

    Passive monitoring and active threat hunting for a global view of the cyber landscape and in-depth mastery of adversary tactics and techniques

    Production of analytical, strategic, and commercial content
    Cyber Threat Intelligence Project Management R&D
  • Wavestone,
    INTERNSHIP - IOS INTRUSION TESTING
    DIGITAL AND IT
    February 2021 - July 2021 (5 months)
    Paris, France
    Implementation of the penetration testing methodology on the iOS environment, using dynamic analysis tools.

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Education

  • ENGINEERING DEGREE
    École Centrale d'Électronique
    2022
    DIPLÔME D'INGÉNIEUR

Certifications

  • Global Diplomacy: the United Nations in the World
    University of London
    2025
  • OSINT & GEOINT : intelligence practices
    Institut d'Études de Géopolitique Appliquée
    2025

Skill set

Categories