Freelancer profile translated to English.
Back to original languageAbout 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
- CodioFreelance ITCONSULTING AND AUDITSSeptember 2019 - Today (6 years and 9 months)Saint-Omer, FranceMulti-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 trainingHomemade SOC for VSEs/SMEs: detection, automatic response, Telegram/email/API alerting
- ODCCybersecurity Expert & Full Stack DeveloperCONSULTING AND AUDITSFebruary 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
- EREDIXHead of Cybersecurity & InfrastructureCONSULTING AND AUDITSMay 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
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Education
- Information Systems Manager, Computer EngineeringCESI School of Management Training2020Manager des systèmes d'informations, Ingénierie informatique
- Higher Technician Certificate in IT Services for Organizations, Computer ScienceAFORP2018Brevet de technicien supérieur services informatique aux organisations, Informatique
Certifications
- TOEIC BridgeAFORP2017
- Fortinet NSE 4Fortinet2022