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Thomas GilletTG

Thomas Gillet

Cybersecurity & Infrastructure Architect

€750/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Thomas

Cybersecurity consultant specializing in Active Directory, Privileged Access Management (PAM), vulnerability analysis, and security control automation.

20 years of experience in critical infrastructures, with historical expertise in Linux/Unix, virtualization, and system architecture.

Solid Linux/Open Source knowledge and interest in on-premise AI architectures, local LLMs, and automated security solutions.
  • French

    Native or bilingual

  • English

    Native or bilingual

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

Experience

  • EssilorLuxottica
    Cybersecurity Consultant
    February 2022 - Today (4 years and 6 months)
    Créteil, France
    Operational security focused on tools (SOC client) in a context of consolidating numerous subsidiaries and managing obsolescence for this industrial company resulting from the merger of three large groups. Numerous production vs. security issues.

    Projects/skills:
    • CyberArk PAM: global deployment and production of documentation (DAT, DIN, DEX).
    • Deployment of TrendMicro Workload Security and Tenable.ad.
    • Active Directory security posture analysis and remediation plan steering.
    • Exploitation of Rapid7 and automation via API.
    • Automation of AD domain compliance report generation (Powershell).
    • Participation in steering the migration/consolidation of subsidiary AD domains.
    • Participation in the deployment and run of TrendMicro Portable Security (Portable Inspector), CyberArk Identity/Secure Web Sessions (SWS), Tenable Nessus, and Semperis.
    • Significant documentation production: DAT, DIN, DEX for projects, security policy, AD standards & norms.
    PAM Sécurité Active Directory Cyberark rapid7 Powershell
  • -
    Developer
    TECH
    March 2026 - March 2026
    Paris, France
    Development of Magimage, an Android application published on the Play Store that allows image editing with AI.
    IA générative Android Studio Android Development Python ComfyUI
  • Bolloré Transports & Logistics
    Infrastructure Architect
    TRANSPORTATION
    May 2019 - January 2022 (2 years and 8 months)
    Puteaux, France
    Systems, virtualization, storage, and backup architect position:
    • Supporting business teams in infrastructure deployment (new needs, evolutions, migrations),
    • Coordinating technical tasks between client teams and production teams,
    • Complete overhaul of Windows server patching: WSUS (remote sites, 60 replicas) and Ivanti ISEC (central datacenters). Scripting and automation (Powershell/API).
    • Deployment of Veeam Backup & Recovery,
    • Setting up SQL Server database backups to Azure,
    • Architecture study and documentation production for standard infrastructures at remote sites (x86 servers, virtualization, storage, backup) for 2020 and 2021; development of the standard catalog with suppliers.
    VMware vSphere Ivanti Veeam Backup & Replication Windows Server Microsoft Azure

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Education

  • CyberArk PAM
    CyberArk
    2022
    CyberArk PAM
  • Cursus architecte Azure cloud : AZ-900, AZ-303, AZ-304
    Microsoft
    2021
    Cursus architecte Azure cloud : AZ-900, AZ-303, AZ-304

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