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David DenysiakDD

David Denysiak

Supermalter

Cybersecurity Consultant

€1,200/day
2 projects
Montpellier, FR
15+ years

Average response time: 4 hours

Freelancer profile translated to English.
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About David

Over 25 years of experience in cybersecurity, from industry to public sector, from implementing secure architectures to security governance, I will guide you in setting up information systems or ISMS towards ISO27001 compliance, and HDS for relevant companies.
  • English

    Native or bilingual

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

Experience

  • SSIak
    GRC Consultant
    April 2025 - Today (1 year and 4 months)
    Montpellier, France
    With over 25 years of experience in the cybersecurity world, I support VSEs/SMEs/PMIs in securing their information systems, implementing ISMS, or conducting internal audits around ISO 27001 and HDS frameworks.
    HDS ISMS IS Governance ISO 27001 Internal Audit
  • Eurofiber France
    EFF Certifications Manager & CISO
    TELECOMMUNICATIONS
    July 2022 - April 2025 (2 years and 9 months)
    Montpellier, France
    Eurofiber France absorbed Netiwan in 2023. The company was formed by the merger of seven companies operating in telecommunications and hosting. Three companies were ISO27001 certified, two HDS. As head of certifications, after renewing the certifications on their own scopes in 2023, I redesigned the ISMS to streamline it by building a single ISMS managed by the parent structure with distinct certification scopes according to the final entities concerned. The ISO27001 and HDS certification was obtained at the end of 2024 on the target scopes.
    HDS ISO 27001 Internal Audit ISMS Security Architecture
  • NETIWAN
    CISO, DPO
    TELECOMMUNICATIONS
    July 2015 - July 2022 (7 years)
    Montpellier, France
    Netiwan is a national telecommunications and infrastructure operator. Netiwan offers telecommunication services: Internet connectivity, VPN optimization, IP Telephony, Datacenter Hosting.
    • Obtaining Health Data Host approval for IaaS and clean room services
    • Obtaining ISO27001 and Health Data Host certification for IaaS and clean room services
    • Benchmarking of market hyper-convergence solutions (Nutanix, Cisco Hyperflex, Dell VxRail, NetApp HCI) and comparison with traditional hosting solutions
    • Implementation of security components for hosting services (Administration Bastion, password management, IPS, ...)
    Security Architecture ISO 27001 HDS ISMS Internal Audit

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Education

  • Master of Information Systems and Networks
    IUP Vannes
    2000
    Maitrise Systèmes d'Information et Réseaux

Skill set

Categories