Freelancer profile translated to English.
Back to original languageAbout Radouan
Expert in networks and security, I support companies in the design, integration, and security of their critical infrastructures. My expertise covers a wide spectrum of technologies, including firewalls (Fortinet, Palo Alto, Cisco ASA, Juniper SRX, Stormshield, Check Point), VPN solutions, IPS/IDS, NAC, and filtering, as well as the optimization of LAN/WAN network architectures.
Specializing in routing and secure segmentation, I work on complex environments, with mastery of advanced protocols (BGP, MP-BGP, OSPF, VRF) and load-balancing solutions (F5 BIG-IP, A10 Networks). My role also includes Level 3 incident analysis and management, security auditing, infrastructure hardening, and compliance with ISO 27005 standards and cybersecurity best practices.
Certified ISO 27005, AWS, AZ-900, and CCNA, I ensure system resilience by applying the best defense and supervision strategies (EDR, SIEM, SOC, Centreon, PRTG). Rigorous and proactive, I also handle the writing of technical documentation and skills transfer to operational teams.
Passionate about cybersecurity and the evolution of threats, I conduct constant technological monitoring to anticipate new challenges in infrastructure protection.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 50km)
Experience
- iDNANetwork and Security EngineerJune 2024 - Today (2 years and 2 months)Objective: Management and administration of network and security infrastructures for various clients.Mission:Provide advanced support (Level 3) for complex and critical incidents (outages, attacks, latency).Advanced analysis of logs and network traces (SIEM, syslog, packet capture). Application of security patches and CIS, ANSSI, NIST recommendations. Management of updates (firmware, OS, IPS signatures).Monitoring of infrastructure capacity and performance.Testing and validation of changes in a pre-production environment. Proactive monitoring of firewalls, routers, switches, and IDS/IPS.Writing procedures and guides for Level 1/Level 2 support.Technical environment: Cisco, Juniper SRX, Fortigate, Stormshield, Aruba Networks, Checkpoint, Cisco ASA, Alcatel Palo Alto, Extreme network.
- IEDOM-IEOMNetwork and Security EngineerApril 2023 - June 2024 (1 year and 2 months)Paris, FranceObjective: Implementation of a physical security infrastructure for IEDOM-IEOM.Mission:Implementation of the physical security model. Analysis of the existing environment and definition of the target network architecture in collaboration with other technical teams.Implementation of necessary configurations, including VLANs, routing, VPNs, traffic filtering, and equipment hardening.Design of a security model to validate the solution before deployment.Documentation of each project phase (PSC, DEX, DAT, DSD) to ensure effective management and facilitate future maintenance.Deployment of the solution across 8 DOM-TOM sites (French Guiana, Martinique, Guadeloupe, Wallis, Mayotte...).
- Banque du FranceNetwork and Security EngineerFebruary 2023 - April 2023 (2 months)Objectives: Strengthen the security of its network infrastructure through an Intrusion Detection and Prevention System (IDS/IPS).Missions:Analysis of the network architecture and definition of IDS/IPS needs.Activation and configuration of the IDP (Intrusion Detection & Prevention) functionality on Juniper SRX.Implementation of appropriate IDP policies (signatures, detection/prevention mode).Testing and optimization of rules to avoid false positives and ensure network stability.Documentation of the solution and training of IT teams on alert and log management.
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Education
- Master of ScienceFST SETTAT.2015Master Science et Technique Réseaux et Systèmes Informatiques
- Science and Technology Degree in Networks and TelecomFST SETTAT.2013Licence Science et Technique Réseaux et Télécom