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Léon BenabouLB

Léon Benabou

Freelance Network & Security

€520/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Léon

Freelance network and security engineer, specializing in Fortinet solutions.
I assist companies in the migration, integration, and documentation of their network and security infrastructures.
With several complex projects (FortiAnalyzer, FortiGate, FortiClient EMS, administrator VPN, Forescout NAC), I combine technical expertise with an operational approach to deliver secure, reliable solutions compliant with ANSSI standards.
Available for ad-hoc missions or complete projects.
  • French

    Native or bilingual

  • English

    Conversational

Can work on-site
Paris (up to 50km)

Experience

  • IFP Energies Nouvelles
    Network and Security Operations Manager
    May 2022 - March 2025 (2 years and 10 months)
    Rueil-Malmaison, France
    Title: Operations Manager – Network, Security & TOIP

    Description:

    - Complete takeover of the TOIP scope and participation in technical committees (COTECH).

    - Deployment and redesign of urgent lines, dedicated assistant lines, and autocoms.

    - Management and monitoring of TOIP incidents and change requests, including escalations.

    - Integration of SSL VPN and Fortinet solutions (FortiEMS, FortiClient): configuration, deployment, training, and documentation.

    - Implementation of backups, patch management, and critical patches (e.g., Zerologon).

    - Deployment and configuration of inter-site routers, redesign of spanning tree, and DNS/DHCP migration.

    - Training of the support team on TOIP tools and network/security solutions.

    - Participation in reversibility workshops, crisis meetings, and PCI projects.

    - Level 3 support for network and security incidents.

    Technical Environment:
    Fortinet (FortiGate, FortiEMS, FortiClient), Stormshield (SN2K/SN3K), F5 ASM/APM, Aloha, Cisco WSA/ESA, UCOPIA, Efficient IP, HP network, Cisco wifi, McAfee, TOIP AVAYA, Windows Server & 11, Linux, VMware, Nagios, Splunk, Nessus
    Stormshield Fortinet TOIP HPE F5 BigIP
  • KAPIA - RGI
    Network and Security Engineer
    June 2021 - April 2022 (11 months)
    Paris, France
    Title: Security Engineer

    Description:

    - Implementation of the latest CVE patches on Windows servers and deployment of associated GPOs.

    - Configuration, migration, and deployment of IPsec VPN and SSL VPN tunnels on FortiGate, creation of user scripts and L1 training.

    - Deployment and maintenance of antivirus solutions (Sophos and SentinelOne) on servers and user workstations.

    - Implementation of log centralization and dashboards via vRealize Log Insight and Splunk POC, reporting, and generation of audit and ISAE 3402 documents.

    - Management and troubleshooting of internet, internal, external, telephony, and IPsec VPN traffic.

    - Deployment of internal certification authority and management of certificates on servers and workstations.

    - Participation in client technical committees, KAPIA-RGI steering, and creation of procedures for email box migrations.

    - Daily AD, DUO management, and centralized technical documentation.

    Technical Environment:
    Fortinet, iptables, Windows 10 & Server 2008R2–2016R2, Linux (Red Hat, Oracle, CentOS), VMware ESXi/vSphere/vCenter, vRealize Log Insight, SentinelOne, Sophos, Nagios, Cacti, Nessus, Veeam, OwnCloud
    Fortinet Nagios Splunk SentinelOne Active Directory
  • CGI
    Network and Security Systems Engineer
    September 2020 - May 2021 (9 months)
    Courbevoie, France
    Title: Systems & Security Engineer

    Description:

    - Implementation of documentation and network diagrams (Visio) for L1/L2.

    - Migration of Check Point, SRX, and Cisco ASA firewalls to FortiGate, including configuration export (Expedition tool).

    - Implementation of VLANs related to migration and preparation of Python scripts for automatic FortiGate configuration import.

    - Upgrade and integration of FortiGate, FortiAnalyzer, FortiManager, and FortiClient EMS; creation and updating of AD groups.

    - Audit of AD users and acceptance testing with integrators on the Fortinet solution.

    - Level 3 support for systems, network, and security (OTRS) and vulnerability resolution.

    - Implementation of IPsec VPN and traffic flows on FortiGate and Cisco ASA.

    Technical Environment:
    Fortinet, Cisco (Switch, ASA), Nexus, Check Point, SRX, Centreon, Expedition (Palo Alto), Windows Server 2012R2
    Fortinet Nexus Checkpoint Palo Alto Juniper SRX

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Education

  • Confidential Defense Clearance
    2020
    Habilitation Confidentiel Défense
  • BTS SIO (Information Technology Services for Organizations)
    2013
    BTS SIO (Services Informatiques aux Organisations)

Skill set

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