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Grégoire SandréGS

Grégoire Sandré

Cybersecurity Director (CISO - RSSI)

€750/day
Boulogne-Billancourt, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Grégoire

Experienced CISO with over 20 years of experience in information security governance, in international and multi-site environments (up to 31,000 people, 80 countries). Ability to structure and manage security at a group level while ensuring daily operations.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Boulogne-Billancourt (up to 50km)

Experience

  • Freelance
    Cybersecurity Director (CISO - RSSI)
    January 2026 - Today (7 months)
     Security Governance Expert: Risk analysis and management, integration of information security into processes, coordination of risk reduction actions, reporting to management
     ISMS Management: Management of ISO 27001 certification, definition and maintenance of the Security Policy, definition and monitoring of the Risk Treatment Plan, creation and management of dashboards
     Operational Security Management: Watch management, incident response management and support, validation of technical architecture documents, audit planning and gap monitoring
     Training: Employee awareness, implementation of training plans
    ISO 27001 Cyber Risk Management Risk analysis Risk analysis security-awareness-training
  • Trescal
    Group Information System Security Director (CISO)
    January 2021 - January 2025 (4 years)
    • • Deployment of e-learning security training with phishing tests, in 6 months =>
     Over 5000 employees trained in 20 languages in 32 countries
    • • Implementation of business continuity plans in the group's main countries (80% of group revenue) =>
     Business continuity plans defined in less than a year
     Implementation of the group management system
    • • EDR Deployment
     Over 80% of the scope covered in less than 6 months
    • • Implementation of a monthly dashboard covering all entities =>
     Integration of results into monthly country manager reviews
    security-awareness-training ISO 27001 ISO 22301 EASM EDR
  • Umanis
    Group Information System Security Manager (CISO)
    January 2017 - January 2020 (3 years)
    • • Responsible for extending ISO 27001:2013 certification to all agencies in France and service centers in France and Morocco => 4 branches added
    ISO 27001 security-awareness-training Business Continuity Plan Risk analysis

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Education

  • Engineer
    ESME
    1986
    Ingénieur
  • CISSP
    CISM
    2009
    CISSP

Skill set

Categories