Description

I’m Helmi Riahi, a Network and Security Engineer with a strong background in networking, systems, and cybersecurity. I enjoy designing secure architectures, managing firewalls and VPNs, and monitoring infrastructures both on-premise and in the cloud with Azure. I’ve also worked with SIEM, threat hunting, and penetration testing, which allows me to combine both defensive and offensive skills. Passionate about technology, I’m always learning and looking for new challenges in cybersecurity.

Langues

Arabe
Bilingue ou natif
Français
Capacité professionnelle limitée
Anglais
Capacité professionnelle limitée

Préférences en matière de lieu de travail

Accepte de travailler sur site

Tunis (jusqu’à 50 km)

UHD
Network and Security Engineer
juillet 2025 - Aujourd'hui (11 mois)
Tunis, Tunisia
• Designed and managed network segmentation via VLAN and routing protocols (OSPF).
• Ensured network monitoring and supervision with Cisco, SolarWinds, Zabbix, and Azure Monitor.
• Managed and applied firewall rules on Cisco ASA and Azure Firewall.
• Configured and administered VPN connections on Azure (Site-to-Site, Point-to-Site).
• Implemented Network Access Control (NAC) solutions.
• Configured authentication and authorization with RADIUS and TACACS+ using Cisco ISE.
OSPF Azure WAF Cisco IOS Firewall Cisco ASA
ASM
System Administrator
octobre 2024 - juin 2025 (8 mois)
Tunis, Tunisia
• Created and managed user accounts (Active Directory).
• Defined access rights to files, folders, and applications.
• Diagnosed and resolved system failures.
Administration système Sécurité réseau
Talan
Final Year Internship
février 2024 - mai 2024 (3 mois)
Tunis, Tunisia
• Implemented a next-generation SIEM solution covering the entire attack surface.
• Integrated an NIDS layer using Suricata and Zeek.
• Used Elastic Agent for HIDS monitoring.
• Enhanced threat intelligence with Zeek, MISP, and AlienVault OTX.
Cyber Threat Intelligence VMware vSphere Intégration de système