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Quentin GonceQG

Quentin Gonce

IT Security Officer

€650/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Quentin

Freelance cybersecurity expert based in Paris, I assist you in securing your information systems and strategic projects. With 4 years of experience in various missions (GRC, audit, awareness, security architecture), I combine technical approach and business risk.

Certifications:

CISSP: Certified Information Systems Security Professional
CISM: Certified Information Security Manager
CCSP: Certified Cloud Security Professional
CEH: Certified Ethical Hacker
ISO 27032 Lead Cybersecurity Manager
ISO 27001 Foundation (Information Security Management)
ITIL Foundation: Information Technology Infrastructure Library
M_O_R: Management of Risk
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 15km)

Experience

  • Hyundai Motors France
    IT Security Officer
    TRANSPORTATION
    September 2024 - Today (1 year and 9 months)
    Paris, France
    Managed the post-audit remediation plan, increasing the compliance score from 45/100 to 78/100 (+73%) in less than a year (Global Policy Alignment).
    Streamlined the security tools portfolio, generating annual savings of €125k on OPEX (licenses) without degrading the security posture.
    Mapped critical processes (BIA) and redesigned the Security Master Plan (PSSI, infrastructure hardening, segmentation, SSO, internal/external attack surface...).
    Supervised defense infrastructures (Network Access Control, Vulnerability Management, Patch Management, email security...).
    Defined the awareness and training strategy (measurable decrease in click rates, phishing) and supervised resources (mentoring of cybersecurity Master's students and interns).
    Developed KPIs and modeled cyber risks using EBIOS RM and FAIR frameworks.
    Project Management Cybersecurity Awareness Audit IT Infrastructure Management Network Administration
  • Louis Vuitton
    CISO Support
    LUXURY GOODS
    September 2023 - September 2024 (1 year)
    Paris, France
    Managed and reviewed supplier security audits (Europe) to secure the company's digital supply chain.
    Actively participated in the Group-level maturity audit.
    Assisted in structuring and monitoring the Cybersecurity Department's budget.
    Participated in the organization of the "Hack Me I’m Famous2" event (Live Bug Bounty), strengthening collaboration with the ethical hacking community.
    Deployed a centralized compliance management solution (Cybersecurity Management).
    Audit Cybersecurity Awareness
  • Louis Pion Galeries Lafayettes
    CISO Support
    LUXURY GOODS
    September 2019 - September 2023 (4 years)
    Levallois-Perret, France
    Developed and deployed the first security policies and hardening standards.
    Audited and remediated Active Directory (PingCastle, Purple Knight) and implemented the principle of least privilege.
    Administered and hardened the security stack (Firewalling, Cisco Umbrella, Endpoint Protection).
    Reviewed the Patch Management process and reduced the exploitable surface.
    Beta-tester for the Galeries Lafayette talent incubator (Cyber Startup Collaboration).
    Deployed and maintained the operational status of the application portfolio for 120 points of sale.
    Network Administration Firewall

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Education

  • Advanced Master's Degree CGE Expert in Cybersecurity
    University of Technology of Troyes
    2024
    Mastère Spécialisé Expert en cybersécurité
  • Master's Degree in System and Network Architecture
    INSTA
    2023
    Master Architecte technique en systèmes et réseaux

Certifications

Skill set

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