Freelancer profile translated to English.
Back to original languageAbout Oscar
Cybersecurity and artificial intelligence consultant, I support organizations in securing their infrastructures and integrating AI into their defense operations.
Currently a cybersecurity engineer at the Banque de France, I work on threat detection and continuous monitoring (SOC/SIEM, EDR) augmented by AI/ML models, incident investigation and response, and compliance audit management (ANSSI, ISO 27001, NIST CSF) on a national banking infrastructure.
My background in pre-sales and managed services has forged a rare dual expertise: secure solution architecture (Fortinet SD-WAN, ZTNA, micro-segmentation, Infrastructure-as-Code with Terraform) and field operations (fleet management, EDR/MDM, vulnerability scan automation).
Curious, rigorous, and results-oriented, I design solutions that combine technical robustness and business relevance.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 50km)
Experience
- Banque de FranceCybersecurity EngineerSeptember 2025 - Today (10 months)Paris, FranceAI-augmented cybersecurity engineer on a national banking infrastructure.• Design and operation of AI/Machine Learning anomaly detection models within the SOC (SIEM, EDR) to reduce false positives and accelerate threat detection.• Industrialization of security analysis: Python scripts and data processing pipelines for event correlation, automated sorting, and decision support.• AI-enhanced incident investigation and response, enriched by threat intelligence to prioritize and guide the response.• Management of compliance audits aligned with ANSSI, ISO 27001, RGS, and NIST CSF; delivery of technical reports and executive summaries.
- LINKT (Groupe Altitude)Security & Network Pre-Sales Engineer, Key AccountsJanuary 2023 - January 2025 (2 years)92400 Courbevoie, FrancePre-sales engineer for security & network solutions for key accounts, at the intersection of network architecture and AI-driven security solutions.• Design of secure multi-site architectures: Fortinet SD-WAN, ZTNA, datacenter micro-segmentation, Cisco Meraki, integrating AI-augmented security components (behavioral detection, augmented SOC).• Industrialization of deployments via Infrastructure-as-Code (Terraform) and automation, to reduce time-to-delivery and ensure reliable delivery.• Conducting Proofs of Concept (PoCs) and modeling defense architectures, translated into technical deliverables for integration teams.• Communication of technical and AI challenges to decision-makers to translate client needs into solutions.
- BugBustersN2/N3 Security & Infrastructure Engineer, Managed ServicesJanuary 2021 - January 2023 (2 years)92100 Boulogne-Billancourt, FranceN2/N3 security & infrastructure engineer in managed services, with an approach focused on automation and data exploitation.• Management of a fleet of 500+ endpoints: MDM/EDR deployment, system hardening, and automated patch management.• Automation of vulnerability scan pipelines (Nessus, Qualys, Python) and scripting to extend audit coverage and ensure reliable remediation.• Exploitation of security data (logs, vulnerabilities) to prioritize actions — the foundation for AI-augmented analysis approaches I deploy today.• N2/N3 support and complex incident resolution on heterogeneous client environments.
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Education
- MSc Cybersecurity & Cloud Computing, RNCP Level 7 DiplomaEPITECH2026MSc Cybersécurité & Cloud Computing, Diplôme RNCP Niveau 7
- BTS Services Informatiques aux Organisations - Infrastructure & NetworksH3 Hitema2023BTS Services Informatiques aux Organisations - Infrastructure & Réseaux
Certifications
- Fortinet NSE 4 - Network Security ProfessionalFortinet2021
- Claude Certified ArchitectAnthropic2026