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Corentin L.CL

Corentin L.

Freelance System and Network Administrator

€300/day
Nantes, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Corentin

President of Crokotech
IT and Cybersecurity Consultant

With over 5 years of experience in securing information systems and optimizing IT infrastructures, I assist companies in implementing reliable, high-performance, and secure solutions.

As the founder of Crokotech, I work with SMEs and large organizations to protect their digital assets and ensure the continuity of their operations.

📩 Contact me to discuss your cybersecurity or IT management challenges.

Email:
  • French

    Native or bilingual

  • English

    Fluent

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

Experience

  • MADIC
    Systems, Networks, and Cybersecurity Administrator
    TRANSPORTATION
    October 2025 - Today (10 months)
    Nantes, France
    - Management of Madic's SOC
    - Securing servers and workstations
    - Security audits
    - Cyber crisis management
  • Cloud Temple
    Systems and Networks Engineer
    June 2024 - September 2025 (1 year and 3 months)
    Nantes, France
    • Maintaining clients' IS operational conditions
    • Administration and creation, configuration of Windows Server servers
    • Administration and creation, configuration of Linux servers (RHEL, Ubuntu, Debian...)
    • Administration and configuration of network equipment (switches, routers, traffic rules, Fortinet, StormShield)
    • Direct contact with clients via Email, Teams, and meetings
    • Creation of documentation (Confluence)
    • Creation of scripts for Windows (BAT and Powershell)
    • Creation of scripts for Linux (bash and ansible)
    Linux Windows Server System Administration Network Administration Ansible
  • Consort Group
    System and Network Administrator
    October 2023 - May 2024 (7 months)
    Nantes, France
    U IRIS
    • Migration of projects and servers to the Cloud (Google Cloud Platform)
    • Maintenance of Linux servers (RedHatLinux)
    • Infrastructure configuration via Terraform (IaC) and Kubernetes (k8s)
    • Incident resolution on Jenkins pipelines
    • Agile project management via Jira and Trello
    • Creation of bash and ansible scripts

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Education

  • System, Network, and Security Administrators
    OpenClassrooms
    2023
    https://openclassrooms.com/fr/paths/1048-administrateur-systemes-reseaux-et-cybersecurite

Skill set

Categories