Réseaux (CCNA/CCNP, OSPF, VPN IPsec, VLAN, HSRP) Virtualisation (VMware ESXi, Hyper‑V, Proxmox) Cloud (Azure, AWS, GCP, Docker, Kubernetes) Cybersécurité (Zero Trust, NIST CSF, MITRE ATT&CK, Firewalling) SIEM (Wazuh, ELK/OpenSearch, Splunk) Scripting (Bash, PowerShell, Python) Développement Full‑Stack (Django, React/TypeScript, PostgreSQL) Automation (GitHub Actions, n8n, CI/CD) Monitoring (Zabbix, Grafana, Prometheus) Infrastructure as Code (Terraform not mentioned but implied) Machine Learning (Scikit‑Learn, TensorFlow, PyTorch) Linux Administration (Debian, Ubuntu, RHEL, CentOS) Windows Server (AD DS, DNS, DHCP, GPO) Security Testing (Kali Linux, Nessus) Project Management (documentation, NIST framework)