Freelancer profile translated to English.
Back to original languageAbout Thierry
Sovereign & Agentic AI Expert – LLM Ops, RAG & Local Deployment
For over 20 years, I have been designing critical IT infrastructures with an obsession: technical mastery and data control. I apply this to locally deployed agentic AI: security, data residency (GDPR / AI Act), and GPU cost management.
I assist companies, publishers, and integrators who want a truly mastered AI assistant: data that never leaves, business accuracy, production performance.
Expertise
- Agentic Architecture & Orchestration (Autonomous Agents, Modular Skills, MCP)
- Business RAG (Corpus or Vector Database Injection, Anti-Hallucination)
- LLM Ops / MLOps & Local Deployment (vLLM, Ollama, llama.cpp, Multi-GPU, SLM)
- GPU Cost Management (Multi-model Architecture, Task-Calibrated Models)
- Sovereign GPU Infrastructure (AMD ROCm, NVIDIA, Sizing, Multi-tenant)
- Compliance & Sovereignty (GDPR, AI Act, On-Premise, European Hosting, Hybrid)
Intervention Cases
- Implementing an On-Premise AI Assistant (Zero Leakage, Controlled Costs)
- Moving an AI POC to Stable Production (Multi-user, Real Load)
- Building a Reliable RAG on a Niche Domain without Hallucination
- Reducing the "GPU Tax": Benchmarking, Quantization, Multi-models
- Unblocking an Unstable AI Stack (OOM, Throughput, ROCm/CUDA, KV Cache)
- Architecting a Decoupled and Scalable Solution (Horizontal Scaling)
Empirical Approach: No conclusions without real validation, root cause before fix.
In Production: I am developing 2SIN, a sovereign agentic AI assistant for real estate management — Multi-GPU local LLM, Legal RAG (Law 89-462), Hermes Agents + Skills, Document Generation. A Service as a Software model: AI that provides a business service, without the cloud.
Available for consulting, architecture, LLM Ops, auditing, or technical unblocking.
English
Conversational
French
Native or bilingual
Can work on-site
Quincy-sous-Sénart (up to 50km), Paris (up to 50km)
Experience
- WEBOTIC EURLDirector - Principal Engineer - R&D -DIGITAL AND ITApril 2011 - Today (15 years and 3 months)Today, my R&D activity is focused on sovereign AI. I am designing 2SIN, a 100% local agentic AI assistant for real estate management: multi-GPU LLM deployment (vLLM, Ollama, llama.cpp on AMD ROCm), business legal RAG (Law 89-462), Hermes agents with modular skills, automated document generation, and multi-tenant orchestration. Objective: high-performance, controlled AI without cloud or GAFAM dependency.This AI expertise is built on 15 years of critical infrastructure experience:
- **Cybersecurity & Sovereignty**: Secure on-premise architectures, encryption, GDPR compliance, backup, system hardening, data control recovery.
- **Systems & Networks**: Linux administration, Docker, virtualization, cloud and on-premise deployment, GPU sizing.
- **IP Telephony & VoIP**: Design of sovereign telecom infrastructures (Asterisk, Flexisip, SIP), debugging and reliability of critical environments.
- **Development & R&D**: Design of decoupled and scalable architectures, from POC to stable production deployment.
My approach is empirical and pragmatic: identify the root cause before applying a fix, validate in real conditions before concluding. I transform complex problems (AI, security, infrastructure) into sustainable, end-to-end mastered solutions. - SAS ISYS TELECOMPresidentTELECOMMUNICATIONSJuly 2023 - Today (3 years and 1 month)Quincy-sous-Sénart, FranceProject Manager,Implementation of GAFAM-independent communication solutions, GDPR-aligned and hosted in Europe.These solutions are based on open source, end-to-end encryption, and controlled infrastructures (Asterisk, Flexisip, QNAP, Watchguard, OVH…).
- ECOCUBEPrincipal Engineer - Technical Directorate - R&DDIGITAL AND ITDecember 2005 - July 2010 (4 years and 7 months)Boussy-Saint-Antoine, FranceDevelopment and management of the R&D team for the development of semi-industrial IT systems for Internet telephony, using Open Source platforms, enabling calls anywhere in the world via the Internet and all operator networks.
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