terminal@jeffrey:~

$ whoami

Jeffrey Detoisien

$ cat role.txt

System & Network Administrator

$ echo $LOCATION

● Nice, France

> Contact me
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📄 Modern Minimalist design 💻 Cyber Neon theme
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< Profile />

Experienced IT Administrator, specialized in project management, virtualization and infrastructure security. I help companies deploy robust and innovative solutions, while providing quality technical support and customer service.

0 Years of experience
0+ Servers managed
0+ VMs managed

< Skills />

⚙ Project Management

Projets IT multi-sites Analyse des besoins Cahiers des charges Planification Coordination

☁ Virtualization

VMware ESXi Hyper-V Proxmox Gestion VMs Cloud privé

💾 Backup

Veeam Backup Iperus Backup Proxmox Backup Server

📈 Supervision & Monitoring

GLPI Nagios CheckMK HealthCheck OSTicket TacticalRMM TeamViewer Anydesk Grafana

📞 IP Telephony

3CX Alcatel Microsoft Teams

🔗 Network

Cisco Ubiquiti Alcatel Configuration LAN/WAN HP/Aruba Sophos

🔒 Security

PFSense OPNSense Sophos ESET Pare-feu Windows Defender

🛠 Collaborative Tools

Microsoft 365 Google Workspace Confluence

🤖 Automate

Talend N8N Home Assistant

֎🇦🇮 AI

ollama lmstudio

< Experience />

Network & System Technician

2026-01 - 2026-01

Transcan

  • Optimization and administration of the GLPI platform (asset and ticket management)
  • Performed preventive and corrective maintenance, providing first-level technical support
  • Contributed to the design of system and network infrastructure projects within Business Continuity and Disaster Recovery plans (BCP/DRP)
  • Optimized Active Directory structure and Group Policy Objects (GPOs)
  • Enhanced and fine-tuned Zabbix monitoring system

System & Network Administrator

2024-08 - 2024-10

PEP 06

  • Multi-site infrastructure management: administration of 15 physical servers hosting 160 VMs under Proxmox
  • Supervision of 180 Windows workstations and Alcatel IP telephony management
  • Application and system monitoring with HealthCheck, asset management via SnipeIT and ticketing via OSTicket

System & Network Administrator

2020-12 - 2024-09

Jeffrey Detoisien (Freelance)

  • IT project management: planning, coordination and monitoring of technology projects
  • Server installation, configuration and maintenance (ESXi, Proxmox)
  • Deployment of private cloud solutions and IP telephony systems
  • Consulting and supporting clients in their technology choices

System & Network Administrator

2024-02 - 2024-07

Riviera Imagerie Médicale

  • Administration of 10 physical servers and 100 VMs under Microsoft Hyper-V
  • Firewall configuration, protection with Sophos, Veeam Backup
  • Complete management of 3CX IP solution and Microsoft 365
  • Global monitoring (GLPI, Nagios, CheckMK), ticketing redesign, cybersecurity projects

System & Network Administrator

2020-12 - 2024-02

Chullanka

  • Centralized administration of 10 physical servers, 80 VMs under VMware ESXi
  • Supervision of 150 Windows workstations and 90 mobile devices via MDM
  • PFSense firewall configuration, Ubiquiti equipment, ESET protection
  • Complete deployment of IP solution with 3CX, Microsoft 365 and Google Workspace
  • ERP migration, virtualization optimization, dual WAN setup with Starlink

test

2001-01 - 2009-09

Association les Arianences

  • Managed and coordinated the association’s cybercafé operations
  • Provided user support and guidance on digital tools and computer usage
  • Delivered basic training sessions on Windows and Microsoft Office
  • Performed first-level technical support (troubleshooting, setup, and software/hardware assistance)

< Projects />

Homelab Infrastructure

Design and administration of a complete virtualized infrastructure (over 30 instances) dedicated to learning and testing enterprise solutions. Virtualization & Containers: Management of a hybrid cluster of VMs (Windows, Debian, Kali) and LXC containers (Docker/Portainer) segmented by services (Reverse Proxy, DNS, Backup). Security & Network: Deployment of a pfSense firewall, management of SSL certificates (ACME), and remote monitoring via TacticalRMM. AI & Innovation: Self-hosting of local LLM models via Ollama and LMStudio with API integration. Monitoring & Data: Real-time monitoring with Zabbix and Grafana, database management (NocoDB), and centralized storage (SMB/NFS). Resilience: Backup automation with Proxmox Backup Server (PBS) and UrBackup.

Proxmox Docker PFSense TrueNAS OpenMediaVault Ollama LMStudio Portainer Zabbix GLPI Automatisation N8N Portainer
  • Proxmox Cluster (30+ instances)
  • Advanced Networking & Security
  • Local Generative AI
  • Monitoring & Resilience

Hybrid Cloud Migration

On-premise infrastructure migration project to hybrid architecture.

VMware Veeam Azure Proxmox Hyper-V
  • 15 servers migrated
  • Zero downtime
  • 30% cost reduction

< Education />

2025

BAC + 2

IT Technician

Openclassrooms

2026 (en cours)

BAC + 3

DevOps system administrator

Studi

2026 (en cours)

BAC + 3

Cybersecurity System Administrator

Studi

Languages

French
Native
English
Read and understood (not spoken)

Programming Languages

Bash/Shell
Advanced
Python
Intermediate
PowerShell
Intermediate
SQL
Basic
HTML/CSS
Basic

< Contact />

📞
Phone 06 70 34 22 54
✉
Email [email protected]
🌐
Website www.jeffreydetoisien.fr
📍
Location Nice, France
🚗
Mobility Driver's License

$ echo "Ready for new challenges!"

Ready for new challenges!

$ _