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Yohann GerboutYG

Yohann Gerbout

Expert IT - Cybersecurity - Network Infrastructure & Cloud

€500/day
Saint-Omer, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Yohann

🛠 Versatile IT Expert – Infrastructure, Network, Cloud, Cybersecurity & Telecom

IT Engineer with over 10 years of experience, I work on complex and critical projects: infrastructure modernization, monitoring, network security, automation, telephony, cloud solutions (O365, Azure), ERP (Odoo, Dolibarr), etc.
I design, deploy, and secure robust systems adapted to business challenges. Autonomous, rigorous, and results-oriented, I am as comfortable in the field as in project coordination.
Quick availability – One-off intervention or long-term mission.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Saint-Omer (up to 50km), Lille (up to 50km), Calais (up to 50km), Paris (up to 50km)

Experience

  • Codio
    Freelance IT
    CONSULTING AND AUDITS
    September 2019 - Today (6 years and 9 months)
    Saint-Omer, France
    Multi-company Odoo ERP: Dockerization, reverse proxy, automation of accounting tasks, Stripe integration (SEPA)
    Docker infrastructure managed with Portainer: hosting client services (websites, ERP, mail, DNS)
    Internal phishing campaign: custom PHP platform (tracking, click analysis, statistics)
    Development of custom landing pages for marketing campaigns or training
    Homemade SOC for VSEs/SMEs: detection, automatic response, Telegram/email/API alerting
    Network Administration Cybersecurity IT Infrastructure Cloud Architect IP Telephony
  • ODC
    Cybersecurity Expert & Full Stack Developer
    CONSULTING AND AUDITS
    February 2024 - June 2025 (1 year and 4 months)
    Saint-Martin-Boulogne, France
    • Complete setup of a SOC based on Wazuh and Suricata, with alert automation via N8N (Telegram sending, sorting, response)
    • Development of a phishing simulation tool (in PHP + Bootstrap) with click tracking and statistics
    • Internal security audit (mapping, vulnerability search, network analysis) and system compliance
    • Development of a client portal (web dashboard) to view active services, billing, tickets, and contracts
    • Cyber strategy consulting: securing exposed services, network segmentation, password policy, MFA
    • Technical environment: Wazuh, Suricata, N8N, Docker, Debian, PHP, HTML/JS, MariaDB, Grafana, Apache2
    Cybersecurity IT Infrastructure Network Administration Cloud Architect Remediation
  • EREDIX
    Head of Cybersecurity & Infrastructure
    CONSULTING AND AUDITS
    May 2023 - September 2023 (4 months)
    Saint-Omer, France
    • Management of IT projects (infrastructure, telephony, hosting) and technical supervision
    • Strengthening of security policies: access rights, backups, server hardening
    • Management of monitoring, technical documentation, and preventive maintenance
    • Implementation of business continuity logic (backup/restore, simplified DRP)
    • Environment: Linux, Docker, Proxmox, Office365, VPN, VoIP, Notion/Confluence documentation
    Network Administration Cybersecurity Strategy Cybersecurity Awareness Cybersecurity Audit

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Education

  • Information Systems Manager, Computer Engineering
    CESI School of Management Training
    2020
    Manager des systèmes d'informations, Ingénierie informatique
  • Higher Technician Certificate in IT Services for Organizations, Computer Science
    AFORP
    2018
    Brevet de technicien supérieur services informatique aux organisations, Informatique

Certifications

  • TOEIC Bridge
    AFORP
    2017
  • Fortinet NSE 4
    Fortinet
    2022

Skill set

Categories