Sabri L

Network Security Engineer

RATP

Aug 2022 - Aug 2025 • 3 yrs

Within a network security team, I am responsible for the administration of the internal infrastructure. BUILD & RUN Missions: BUILD: Implement the flow matrix corresponding to project expectations. RUN: Participate in the implementation of filtering rules on firewalls respecting operating rules and internal security policy. Perform diagnostics to identify the causes of malfunctions and propose corrections and workarounds. Define and implement the rules of good management and exploitability of systems or products and qualify them from a technical point of view. Propose solutions to improve the performance of the RUN activity. Provide technical assistance to the various production units of the organization. Implementation of good management and exploitability rules for infrastructures. Performing diagnostics, and optimizing performance. Environment: Firewalling; IPS/IDS, SIEM; DCNM Cisco Nexus; F5 LTM;

security engineer

VINCI Energies NL

Jan 2020 - Aug 2022 • 2 yrs 7 mos

Advice and participation in architecture modification and optimization. ✓ BUILD: - Implement the flow matrix corresponding to project expectations. ✓ RUN: Incident management, troubleshooting in critical phases. ✓ Perform diagnostics to identify the causes of malfunctions and propose corrections and workarounds. ✓ Implement flow matrix monitoring of new configurations and services. ✓ Implement flow matrix monitoring of new configurations and services Participate in HNO interventions and regular network and security on-call duties ✓ Infrastructure project management

Network and security engineer

Orange

Dec 2016 - Dec 2019 • 3 yrs

Danone project: complete overhaul of their IT infrastructure in France and internationally (300 devices) ✓ Production and migration of devices for strategic clients internationally, based on standard and customized offers. ✓ Management of upgrade requests for several strategic clients. ✓ Environment: Cisco ASR/ISR 4000; Juniper EX4300M/EX9200