Freelancer profile translated to English.

Description

Senior Network & Security Engineer specializing in the architecture and build of high-stakes business infrastructures.

🎯 I support organizations in designing and deploying reliable, high-performance network and security solutions aligned with business objectives, ensuring:

✔️ adherence to deadlines and project commitments

✔️ service continuity and high availability

✔️ reduction of security risks

✔️ performance of critical applications

Core expertise:

🔐 NGFW Firewalling — Fortinet, Palo Alto, Checkpoint, Stormshield, Juniper

🌐 Switching & Routing — Cisco, Aruba

⚖️ Load Balancing & High Availability — F5

🏗️ On-prem & Hybrid Secure Architectures

My approach is results-oriented: projects delivered on time, stable infrastructures, and a truly protected, hardened IT system without unnecessary complexity.

And by the way...

👉 Is your network truly segmented or "more or less" secure?

👉 Does your architecture protect the company while remaining agile?

👉 Could technical reinforcement or improved IT security accelerate your projects while reducing risks?

If so, let's talk 🙂

Languages

French
Native or bilingual
English
Fluent
Spanish
Conversational

Workplace preferences

Can work on-site

Nantes (up to 50km)

Naval Group (Filiale Sirehna)
Network and Security Architect
April 2025 - Today (1 year and 2 months)
Nantes, France
🔹Define, design, and write technical architecture and engineering documents (DAT) for the accreditation of Sirehna's IT system.

🔹Propose and challenge technical solutions. Install (racking/cabling) and configure new infrastructures (Nefs/Patios/External site...) in compliance with NAVAL Group's security standards (IPSEC (under certificate) in DR mode...).

🔹Harden network equipment (SW Cisco C9200/C9300, FW Stormshield SN720/SN1100, Fortigate 100F) before CYBER acceptance testing.

🔹Scope and conduct all functional acceptance tests.

🔹Technical participation in the production deployment of infrastructures. Update operational and administration documents.

🔹Knowledge transfer to Sirehna's IT department on the specifics of the architecture and technical solutions implemented.

Technical Environment:

🛠️ Stormshield, Fortinet (FW), Cisco (switch) Centreon (Supervision)
IT Architecture Build Technical Acceptance Technical Documentation Hardening
EDF
Network and Security Architect
July 2024 - December 2024 (5 months)
Nantes, France
🔹Design specific detailed architecture (HLD, LLD), production deployment plan, architecture and technical feature prototyping on a test platform. (FW Checkpoint 6400, SMS 600M).

🔹Create and update documentation (configuration guide, acceptance test plan, technical operation procedure...).

Technical Environment:

🛠️ Palo Alto, Fortinet, Checkpoint (FW) - Aruba, Cisco (SW(legacy)) + Wifi + Clearpass/ISE) - Centreon, Infoblox (Tools)
IT Architecture Technical Acceptance Technical Documentation Prototyping Agile Methodology
BANQUE DE FRANCE
Network and Security Engineer
May 2018 - May 2024 (6 years)
Noisiel, France
🔹Create new infrastructure (DMZ) in various environments (testing, integration, production). Install and configure firewalls (Palo Alto, Fortinet...).

🔹Install and configure Cisco switches such as distribution switches (2960 or 3850), aggregation switches (Nexus 5K, 7K, 9K) and modify physical links and their associated mapping.

🔹Deploy Cisco wifi access points (managed with Cisco Prime). L3 technical support (log analysis, debugging in relation with manufacturers...) for integration projects. Update standardized rules (MFL).

Technical Environment:

🛠️ Palo Alto, Fortinet, Juniper, Checkpoint (FW) - F5 (LTM+GTM) Cisco (SW(legacy/ACI)+Wifi+ISE) - Tufin, Ansible, NNM, Splunk, Infoblox (Tools)
Network Deployment Automation Hardening Incident Management Change Management