Sébastien Mottin

Specialized engineer in cybersecurity, networks, and systems, with over 3 years of combined experience in an IT services company, offering extensive exposure to client environments (VSEs, SMEs, local authorities).

My role involves designing, deploying, upgrading, and securing IT infrastructures, while integrating the challenges of availability, resilience, and information system security.

I participate in complete technical projects: needs analysis, implementation, security hardening, go-live, and documentation.

I have also faced real-world cybersecurity situations, including managing a ransomware incident, reinforcing my pragmatic approach focused on attack surface reduction, business continuity, and risk management.

On a daily basis, I work on perimeter and internal security, infrastructure monitoring, virtualization, and systems administration, with a particular focus on the robustness and maintainability of environments.

🎯 Professional Objective

To evolve as a cybersecurity / network & security engineer, and actively contribute to the protection and development of organizations' infrastructures.

🛠️ SKILL AREAS

Cybersecurity & Networks

•Firewalls and perimeter security: Sophos, pfSense, OPNsense, Stormshield

•Network security: segmentation, VPN, filtering, NAT, IDS/IPS

•Monitoring and detection: PRTG (production), Nagios (academic), Wazuh (personal)

•Security incident management, BCP/DRP, backups

Systems & Virtualization

•Windows Server (2003 → 2025), Windows Clients (XP → Windows 11)

•Linux: Debian, Kali Linux

•Virtualization: Proxmox, VMware, Hyper-V

•Containerization: Docker, Proxmox containers

•Systems administration, hardening, high availability

•Backup and business continuity: Veeam Backup & Replication

ITSM & Operations

•GLP/iTop/Artis: asset management, ticketing, incidents

•Technical documentation