Freelancer profile translated to English.

Description

Hello,

I am Cyrille, a freelance engineer specializing in network integration and security with over 10 years of experience.

My expertise covers Fortinet solutions (Fortigate, FortiManager, FortiAnalyzer, FortiEMS), Palo Alto (Panorama), as well as the implementation of SSL / IPsec VPNs, firewall management, and infrastructure hardening.

My approach is proactive and tailor-made: I work closely with my clients to design secure, optimized solutions adapted to their operational needs. Whether for an infrastructure overhaul, a VPN deployment, or security monitoring, I am committed to providing rigorous technical support and clear deliverables (documentation, diagrams, procedures).

Why choose me?

✅ Certified Expertise: NSE3, NSE2 NSE1 certifications, NSE4 training, experience in critical environments (RRF project, aeronautics, banking, industrial).

✅ Flexibility: Available for remote or on-site missions (Île-de-France), with daily rates or fixed-price projects.

Do not hesitate to contact me to discuss.

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Paris (up to 10km), Versailles (up to 15km), Chartres (up to 10km), Dreux (up to 30km)

NeverHack
Security Integration Engineer
DEFENSE AND MILITARY
March 2023 - Today (3 years and 3 months)
Élancourt, France
Context: SSL VPN Integration Project.
Deployment and configuration of a large-scale SSL VPN service (target 120,000 connections: mobile and desktop), with enhanced authentication via certificate and LDAP. Implementation of Realms for access segmentation, and management of full tunneling and split tunneling modes to optimize security and performance.
Define and apply hardening for Fortinet equipment: Change management ports, Disable vulnerable ciphers, Trusted hosts, complex password policy, etc.
Configuration of Fortinet equipment: HA, aggregates, VLANs, static routing, multi-vdom management, snmpv3, syslog.
Evaluation and validation of prerequisites for production deployment.
Diagnose problems encountered during the deployment phase: VPN connections, performance tests (throughput), traffic, routing, etc.
Deployment and administration of the Cyberwatch vulnerability scanner.
Deployment and configuration of the on-premise FortiEMS tool.
Security monitoring: Proactive vulnerability monitoring, escalation and patch application, ensuring continuous compliance with security standards.
Level 3 support for RUN teams.
Fortigate Fortimanager FortiAnalyzer FortiEMS Cyberwatch
CS-NOVIDY'S
Security and Network Integration Engineer
DIGITAL AND IT
September 2021 - March 2023 (1 year and 6 months)
Paris, France
Technical Environment: Palo Alto, Panorama, Fortigate, FortiManager, FortiAnalyzer, StoneSoft, Opengear, Service Now. Context: Multi-client integration in the industrial sector (Aeronautics, Space, Services).

• Infrastructure Redesign Project:
• Consulting with the client on technical choices for the redesign and migration process.

• Creation of about ten VLANs for separating different IT system components (users, servers, printers, etc.).

• Creation of associated traffic rules and troubleshooting.

• Writing Technical Architecture Documents, network diagrams, Operational Documents, and Testing and Validation Documents.

• Implementation of GlobalProtect with AD authentication.

• Proposal of a supervision tool.

• Perimeter Equipment Governance Takeover Project: Conducting interviews, collecting information, writing Technical Architecture Documents (DAT) for the IT department to have a vision of internet-facing equipment, recommending potential improvements in terms of infrastructure, maintenance in operational conditions (MCO), and technology.

• Integration of firewalls into Panorama, production environment. (Integration project of over 500 firewalls).

• Deployment of Panorama with log collector on VM.
• Configuration of Palo Alto Firewalls, pre-configuration, updates, VPN configuration, troubleshooting.

• Deployment of Fortinet solution on VM, Firewall cluster deployment, managed on FortiManager and FortiAnalyzer. Writing DAT, DTV (Technical Validation Document), and operational procedures.

• Project Management: Writing technical documents, assisting project owners in formalizing requests.

• Implementation of standardized processes for handling requests.

• Implementation of a Palo Alto, OpenGear 'Management Backup' solution.

• Participation in FortiNAC POCs.
Palo Alto Panorama Fortigate Fortimanager FortiAnalyzer
Capgemini
Security Engineer
BANKING AND INSURANCE
September 2020 - April 2021 (7 months)
Guyancourt, France
Technical Environment: Fortigate, FortiManager, FortiAnalyzer, Symantec Proxy. Service Now. Context: RUN team, banking sector.
• Project Management: Creation of VPN tunnels, configuration and writing of technical documents, assisting project owners in formalizing requests.
• Participation in the Maintenance in Operational Conditions of infrastructures.
• Analysis and resolution of level 2 incidents.
Fortigate Fortimanager Bluecoat FortiAnalyzer Fortinet