Freelancer profile translated to English.
Back to original languageAbout Vincent
Systems & Network Administrator in apprenticeship and freelance, specializing in the design, deployment, and security of IT infrastructures.
I work on configuring Windows servers (DNS, DHCP, Active Directory), Linux administration, virtualization (VMware ESXi / Hyper-V), setting up secure networks (VLAN, VPN, firewalling), and technical monitoring (Zabbix, Wireshark).
I have carried out several professional projects: high-availability pfSense cluster, full Zabbix deployment, multi-VLAN infrastructure, FOG server, Bash scripts, setting up virtualized platforms, and installing complete network infrastructures.
I offer my services for:
• Network troubleshooting / optimization
• Server installation and configuration
• Setting up virtualized environments
• Infrastructure security
• Remote or on-site technical support (evenings / weekends)
Serious, responsive, and passionate, I support companies in their network, systems, and cybersecurity needs.
French
Native or bilingual
Can work on-site
Valence (up to 50km)
Experience
- Koesio - AlternanceSystems & Network TechnicianTECHSeptember 2022 - August 2025 (2 years and 11 months)Valence, FranceMonitoring and maintenance of network and system infrastructures.Deployment and configuration of Windows servers (DNS, DHCP, Active Directory).Management of an IT park (Windows, Linux, users, rights).Implementation of security and backup solutions.Testing, diagnosis, and resolution of network/system incidents.Writing technical documentation and internal procedures.Participation in the continuous improvement of the IS and evolution projects.
- Koesio - AlternanceSystems & Network AdministratorTECHSeptember 2025 - Today (9 months)Valence, FranceAnalysis, triage, and qualification of security alerts.Continuous monitoring of IS events via monitoring tools.Verification, prioritization, and categorization of detected vulnerabilities.Escalation of incidents to N2/N3 teams according to internal procedures.Participation in the follow-up of security incidents and improvement of detection rules.Support for security teams in the daily handling of alerts.
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Education
- STI2D BaccalaureateBaccalauréat STI2D
- BTS SIOGRETA Ardèche Drôme2024Option SISR