Freelancer profile translated to English.

Description

Network and Security Engineer with over 6 years of experience in the deployment and operational maintenance (MCO) of critical infrastructures on an international scale. I work on complex networks (up to 12,500 devices) to ensure high availability and security of traffic.

Multi-sector background:

Financial & Insurance Sector: Cisco ACI, Meraki, F5 (LTM and GTM) and Fortinet Firewalls administration.

Health Sector: NAC (Forescout) project management and Aruba Wi-Fi security.

Mass Retail: Multi-vendor management (Checkpoint, Palo Alto, F5) and PKI certificates.

Energy & Industry: L2/L3 support and critical infrastructure migration.

Technical Expertise:

Security: Fortigate (NSE 4), Palo Alto, Checkpoint, Cisco ISE & Forescout.

Networks: Cisco ACI, Nexus, SD-WAN, Switching & Routing (OSPF, BGP).

Performance: Advanced troubleshooting (Wireshark), Load-balancing (F5) and automation (Python).

Industry field of expertise

Languages

French
Native or bilingual
English
Native or bilingual

Workplace preferences

Can work on-site

Paris (up to 50km)

CCR
Network and Security Engineer
BANKING AND INSURANCE
July 2024 - Today (1 year and 11 months)
Paris 08 Élysée, France
Redesign of LAN networks, equipment migrations and upgrades, and management of network and security infrastructures

▸Firewall & Traffic Administration: Handling of traffic opening/closing requests (Fortinet), deployment of IPSEC VPN and SDWAN tunnels.
▸Access Management: Cisco ISE (NAC) administration, SSL VPN user management (FortiClient EMS), rights maintenance.
▸Network Equipment: Configuration, migration, and upgrade of Cisco Nexus/Catalyst switches, Cisco Meraki Wi-Fi controller, Cisco ACI.
▸Load Balancing & Proxy: F5 (LTM and GTM) administration, Fortigate proxy, proxypac.
▸Monitoring & CMDB: Centreon monitoring, iTOP update, Wireshark troubleshooting.
SD-WAN Cisco ACI Cisco ISE Fortinet F5 BigIP
Ramsay Santé
Network and Security Engineer
MEDICAL
January 2024 - June 2024 (5 months)
Cergy, France
Participation in the implementation of NAC (Network Access Control) in RAMSAY SANTE client hospitals.

▸NAC Implementation: Forescout deployment in all perimeter hospitals, switch integration, and medical equipment profiling.
▸Palo Alto Firewall: Traffic rule management, NAT configuration, and DHCP relay.
▸Wi-Fi: SSID creation on Aruba WLC, Aruba switches / Airwave administration.
▸Troubleshooting: tcpdump and Wireshark traffic analysis.
Palo Alto Aruba Aruba WLC Airwave Forescout
Carrefour
Network and Security Engineer
RETAIL (LARGE RETAILERS)
March 2022 - October 2023 (1 year and 7 months)
Massy, France
Administration of network and security equipment in the production environment of the Carrefour client in France and internationally

▸Multi-firewalls: Traffic management via Tufin (orchestration), Fortinet, Checkpoint, Palo Alto for an international network.
▸Proxy & Web Filtering: BlueCoat administration, URL Filter Management, ProxyPac.
▸PKI & Certificates: Renewal of certificates on security equipment (Opentrust PKI).
▸DNS & IPAM: Management of internal and external DNS servers (Efficient IP).
▸Load Balancing: F5 administration for critical applications.
▸Results: KPI improvement, incident reduction, connection of new partner sites.
Fortinet Checkpoint Bluecoat Pulse Secure PKI