Freelancer profile translated to English.
Back to original languageAbout David
I transform your business challenges into operational AI solutions
[EXPERTISE]
AI Solutions Architect specialized in the development and deployment of intelligent conversational agents and RAG systems in production. From strategic audit and pitch deck to complete technical implementation.
[EDUCATION]
Physics Engineer - ENS Paris-Saclay & SupOptique. High-level scientific training combining fundamental physics and a data-driven approach, retrained towards AI and development.
[TECHNICAL STACK]
Backend: Python, FastAPI, Node.js, LangChain, LangGraph
Frontend: React, Next.js, TypeScript, Tailwind
AI/ML: OpenAI API, Claude, Hugging Face, RAG, Vector DBs (Pinecone, Chroma)
Infrastructure: AWS, Docker, Supabase, PostgreSQL, Redis
Integrations: Stripe, Twilio, Veriff, Third-party APIs
[APPROACH]
Strategic vision + technical expertise = rapid delivery of production-ready solutions.
I understand both business needs and technical constraints.
[USE CASES]
✓ Automated customer service agents
✓ Personalized recommendation systems
✓ RAG on internal documentation
✓ Automation of complex workflows
✓ LLM integration into existing products
Available for short-term assignments (audit/POC) or long-term (full development).
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 50km)
Experience
- ORIFull-Stack Developer & AI ConsultantHOSPITALITYMay 2025 - August 2025 (3 months)Paris, FranceORI - Customer service platform with intelligent conversational agents• Implementation of RAG architecture with vector embeddings and multi-agent orchestration (MCP)• Integration of payment and identity verification systemsStack: TypeScript, React, Node.js, Next.js, Tailwind CSS, Supabase, Pinecone, Various AI APIs, Twilio, Veriff, Stripe
- Tetard CapitalCTOPRIVATE EQUITYMarch 2021 - June 2024 (3 years and 3 months)Palaiseau, France• Development of a blockchain crowdinvesting platform for startups• Winner of the HSBC/Sia Partners/Google Cloud fintech competition• Design of smart contracts and liquidity optimization algorithms• Management of a team of 3 developers using Agile methodology
- École PolytechniqueStartup Coach & Innovation ConsultantPRIVATE EQUITYJanuary 2022 - June 2023 (1 year and 5 months)Palaiseau, France• Support for 15+ startups on pitch decks and development strategies• Facilitation of masterclasses on entrepreneurial tools and startup methodologies• Extension as a freelancer for the X-HEC Entrepreneurs program
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Education
- Master of Photonics & Data ScienceSupOptique2024Master Photonique & Data Science
- Bachelor of Fundamental PhysicsÉcole Normale Supérieure Paris-Saclay2022Licence de Physique Fondamentale