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Thomas CaiseyTC

Thomas Caisey

Cybersecurity, Systems and Networks Engineer

€600/day
Montpellier, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Thomas

Cybersecurity & Network Engineer | Outsourced IT Department
Over 7 years of experience in operational security, critical infrastructure administration, and IT management, working with IT providers, local authorities, educational institutions, and businesses.
A profile that is both technical and management-oriented, covering the entire information system lifecycle: design, security, operation, and support for users and management.
I also work on security (SOC structuring, incident management, log analysis, investigation and remediation, vulnerability management) as well as governance and project management.
My areas of intervention:
• Outsourced IT Department: asset management, network, backups, budgets, and L1 to L3 user support
• Operational Security: detection, incident management, investigation/remediation, vulnerability management, hardening
• Network & Infrastructure: firewalls, VPN, LAN/WAN/VLAN, virtualization, monitoring
• Governance & Compliance: IS Policy, IT Charter, ISO 27001 / NIS2 / GDPR compliance
• Automation & AI: automated workflows, AI-assisted log analysis, vulnerability detection, and remediation recommendations
Some projects led:
• Co-creation of a SOC unit and structuring of operational security processes
• Migration of a physical information system to a virtualized environment
• Cloud email migration and change management
• Implementation of centralized infrastructure monitoring
• Support for the transition to mobile classrooms and coordination of infrastructure evolutions
• Implementation of an IS Security Policy and drafting of an IT Charter
Versatile and autonomous, I adapt to both SME/mid-cap and public sector environments, with a pragmatic, results-oriented approach. Holder of a Master II in Information Systems Security (UTT).
  • French

    Native or bilingual

  • English

    Fluent

  • Spanish

    Conversational

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

Experience

  • Securit
    Principal CEO
    DIGITAL AND IT
    October 2022 - Today (3 years and 10 months)
    • Outsourced IT Department: management of assets, network, backups, budgets, and L1 to L3 user support.
    • Implementation of security measures, log analysis, SIEM deployment and operation.
    • Support for the transition to mobile classrooms and coordination of infrastructure evolutions.
    • Management of automated workflows for semi-automated processing of security incidents.
    • Design of cybersecurity solutions: automatic analysis of information systems, reporting of known vulnerabilities/CVEs and remediation recommendations.
    • Automated log analysis via artificial intelligence and improvement of detection capabilities.
    artificial intelligence Cybersecurity jury Remediation Plan
  • Acsiema
    Production Engineer
    HEALTH AND WELLNESS
    November 2022 - January 2023 (2 months)
    Grenoble, France
    • Management of approximately 15,000 tablets via SFR Business MDM.
    • Creation and updating of technical procedures on Jira Service Management.
    • Automation of deployments, standardization, and security of usage.
    Jira/Confluence Data management & repositories (MDM, data quality) Jenkins
  • HELIAQ
    Security and Network Engineer
    DIGITAL AND IT
    June 2023 - Today (3 years and 2 months)
    Châtenay-Malabry, France
    • Co-creation of the SOC unit and structuring of operational security processes.
    • Management of security incidents, log analysis, investigation, and participation in remediation.
    • Responsible for the antivirus offering within the Security as a Service team; monitoring of antivirus policies and client support.
    • Administration of client Fortinet firewalls and FortiEMS.
    • Management of client backups with Veeam and service continuity monitoring.
    • Management of antispam/antiphishing solutions, campaigns, and email analysis.
    • Wallix Bastion PAM.
    • Level 2 and 3 technical support, procedure writing, automation scripts, and continuous improvement.
    Backup Solutions Firewall Cybersecurity operational security

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Education

  • Master 2 (M2), Information Systems Security / Safety
    Troyes University of Technology
    2022
    Master 2 (M2), Sécurité / sûreté de l''information des systèmes d'information
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Skill set

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