Freelancer profile translated to English.
Back to original languageAbout Issam
Network security expert with 10 years of experience, specializing in designing and implementing robust security architectures. I distinguish myself through my versatility, whether in mastering different technologies, managing security in cloud and datacenter environments, or leading large-scale security projects.
French
Native or bilingual
English
Fluent
Can work on-site
Bobigny (up to 30km)
Experience
- D-EDGECore Network TechLeadHOSPITALITYApril 2025 - Today (1 year and 2 months)Paris 03 Temple, FranceI manage D-EDGE's entire network infrastructure, a company operating 98% in the cloud. My scope covers three AWS environments (a next-generation Terraform landing zone), several multi-VNG/VPN Azure subscriptions, and GCP usage. On the physical sites side, I manage connectivity and security for four international offices with a heterogeneous fleet of Palo Alto, Meraki, and Fortinet firewalls. On a daily basis, I design and deploy infrastructure in Infrastructure as Code (Terraform, GitLab CI), automate network migrations and operations in Python, and supervise monitoring via Grafana. I also lead network security initiatives and IP addressing rationalization across the entire IT system.
- EIFFAGENetwork Security EngineerCIVIL ENGINEERINGApril 2022 - December 2024 (2 years and 8 months)Neuilly-sur-Marne, FranceContext:As a Network Security Engineer within the NETSEC department at Eiffage, my main mission is to ensure the optimal security and availability of data on all datacenter links and equipment, both nationally and internationally.My key role in support, consulting, and active collaboration with the company's architects has enabled me to lead and significantly contribute to various essential security architecture projects.Actions:Architectural Design
- Complete review and redesign of the HLD document.
- Design of robust integrated architectures for two newly acquired companies, ensuring secure and seamless integration.
Security Project Management- Successful piloting of the datacenter firewall upgrade, ensuring secure connectivity for over 140 IP-SEC VPNs and hundreds of external VPN-SSL users.
- Development and implementation of a comprehensive action plan to address the obsolescence of EOF firewalls, thereby minimizing intrusion risks and ensuring continuous protection against threats.
Infrastructure Optimization- Leadership in optimization initiatives, including thorough rule cleanup, significantly improving the efficiency and security of the network infrastructure.
- Level 3 Technical Support
- Effective intervention and resolution of complex technical incidents, ensuring seamless operational continuity and satisfaction of teams and partners.
Technical Environment:Palo Alto, Fortinet, Azure, A10, Imperva, Trend, Netskope, Proofpoint - BNP ParibasCybersecurity EngineerBANKING AND INSURANCENovember 2020 - March 2022 (1 year and 5 months)Montreuil, FranceContextAs a Cybersecurity Expert at BNP Paribas, my involvement in the NIDP team was central to strengthening perimeter security and data protection. My role included daily RUN management of security elements (IPS/IDS, sandbox) and technical leadership in the equipment refresh project.ActionsAddition of a Cloud Probe
- Implementation of an IPS probe ensuring a secure link with the private cloud.
- Detailed analysis of the perimeter, including services and traffic.
- Successful execution of a PaloAlto POC with fine-tuning.
- Preparation and implementation of custom signatures and policies.
IPS/IDS Infrastructure Migration- Leadership in migrating to a new PaloAlto-based architecture.
- In-depth comparative study of IPS signature databases (Cisco vs PaloAlto).
- Translation and coding of custom signatures.
- Development of an HNO migration plan.
Daily Security Management (IPS/IDS and Sandbox)- Daily analysis of security-related events and incident management.
- Analysis and monitoring of intrusion events and new attacks.
- Development of Yara rules to counter phishing campaigns.
- Qualification of new signatures and monitoring of defensive implementations.
Technical Environment:Cisco Firepower, Fortinet Fotigate, PaloAlto, FireEye Sandbox
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Education
- NATIONAL DIPLOMA OF ENGINEERESPRIT2018SPÉCIALITÉ « GÉNIE DES TÉLÉCOMMUNICATIONS
- APPLIED LICENSE IN COMPUTER SCIENCEISIT'Com2014SPÉCIALITÉ "TECHNOLOGIE DES RÉSEAUX INFORMATIQUES"
Certifications
- Certified Ethical Hacker (CEHv10)EC-Council2019
- Microsoft Certified: Azure Fundamentals (AZ-900)Microsoft2022