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Frantzson D.FD

Frantzson D.

Network Security Engineer / Fortinet Expert

€700/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Frantzson

🔒 Network & Security Engineer – Fortinet NSE7 | Cisco | SD-WAN | Cybersecurity

Cybersecurity engineer with 7+ years of experience in secure network architecture. I have led SD-WAN migration projects for +100 sites, integrated advanced VPN solutions, and secured hybrid enterprise infrastructures.

🔧 Fortinet NSE7 Certified - Cisco, F5, ClearPass, Meraki, Cloudflare...

🌍 Available for freelance / 100% remote, I collaborate with companies in Europe, North America, and Africa for missions in network security, segmentation, hardening, SD-WAN transition...

✅ Languages: French | English

🚀 Let’s work together :| linkedin.com/in/frantzson-dasne-3288a136
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 20km)

Experience

  • ManpowerGroup
    Network Security Engineer
    January 2021 - Today (5 years and 5 months)
    Puteaux, France
    🔹 Design and implementation of a robust and secure VPN infrastructure, enabling seamless and secure data exchange with external partners.
    🔹 Provide expert-level support to project teams to optimize network performance and ensure the smooth operation of critical applications.
    🔹 Ensure the operational maintenance of existing network infrastructures, guaranteeing 24/7 service continuity with minimal interruptions.
    🔹 Management of high-impact network projects focused on innovation, including network upgrades and the adoption of new technologies.
    🔹 Offer third-level (N3) support for LAN/WAN incident resolution and change management.
    🔹 Lead the successful migration of over 100 sites to a new SD-WAN infrastructure, driving service availability and optimizing costs.
    🔹 Close collaboration with vendors to achieve optimal results and ensure timely delivery of network solutions.
    🔹 Utilize advanced technologies such as Cisco, Fortinet (FortiGate, FAZ, FMG), Cloudflare, Zscaler, and Meraki to enhance network security and performance.
    Réseau privé virtuel (VPN) VPN IPSEC VPN SSL Fortinet SD-WAN Cloudflare Gestion de production F5 BigIP Cisco Meraki Fortigate FortiAnalyzer Fortimanager
  • IEDOM-IEOM (FILIALE BANQUE DE FRANCE)
    Network Security Engineer
    February 2019 - November 2020 (1 year and 9 months)
    Paris, France
    🔹 Implementation of advanced endpoint security solutions, significantly strengthening the organization's cybersecurity posture.
    🔹 Application of security audit recommendations to optimize network infrastructure and ensure compliance with industry standards.
    🔹 Centralization of authentication protocols using RADIUS across switches, firewalls, and Wi-Fi networks to enhance access control and security.
    🔹 Management of the Public Key Infrastructure (PKI) system, generating and installing certificates to secure communication channels.
    🔹 Creation of detailed documentation on network architecture, procedures, and operational guidelines to ensure smooth network operation.
    🔹 Conducting vulnerability assessments and proactively identifying security gaps, leading to improvements in the network infrastructure.
    🔹 Administration of a multi-vendor environment, working with technologies such as Cisco, HP, Dell EMC, and Bitdefender to enhance network performance.
    Streamlining network configuration processes, ensuring seamless integration of new devices and security protocols.
  • MAIRIE DE PARIS
    Network Security Engineer
    September 2018 - December 2018 (3 months)
    Paris, France
    🔹 Design and deployment of a centralized Wi-Fi architecture for guests, enhancing user experience.
    🔹 Configuration and optimization of critical network services, including NTP, DNS, and DHCP, to ensure high availability and security across the network.
    🔹 Administration of advanced network equipment configurations, such as Palo Alto firewalls, WLCs, and Infoblox, to ensure optimal network performance.
    🔹 Develop and maintain comprehensive network documentation to support ongoing operations and future expansions.

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Education

  • Master en Architecture des Systèmes en Réseaux
    UNIVERSITÉ PARIS-SACLAY
    2017

Certifications

  • Network Security Expert Level 4 - Professional
    Fortinet
    2021
  • Network Security Expert Level 7 - Specialist
    Fortinet
    2021

Skill set

Categories