Freelancer profile translated to English.
Back to original languageAbout Alexandre
Freelancer with 5 years of experience, I help companies develop modern web applications integrating artificial intelligence.
I specialize in designing systems that leverage LLMs, particularly in setting up advanced RAG pipelines (ingestion, structuring, embeddings, semantic search), business chatbots connected to internal document bases, and AI agents capable of interacting with tools and APIs.
My approach is production-oriented: clear architecture, maintainable code, cost and performance optimization related to LLMs, containerized deployment, and reliable CI/CD pipelines. The goal is to transform complex business needs into robust, production-ready solutions.
Technically, I work across the entire value chain: Python backend (FastAPI, Flask), TypeScript frontend (Svelte, Angular), data processing and visualization, relational and analytical databases, as well as containerization with Docker and deployment automation.
* Key Skills *
- Languages: Python, TypeScript, JavaScript, SQL
- Frameworks: FastAPI, Flask, Svelte, Angular, SQLAlchemy
- AI: LLM (Hugging Face), RAG & Agents (Langchain)
- Data & Dataviz: Polars, Pandas, Vaex, Leaflet, Dash (Plotly)
- Databases: SQLite, DuckDB, MariaDB, Oracle
- Containerization / CI-CD: Docker, Podman, Dagger, GitHub Actions
- Other: French Government Design System (DSFR), Linux, Git, uv, NVM
* What I Offer *
- Complete development of modern web applications integrating artificial intelligence
- Creation of high-performance and secure APIs
- Integration and visualization of complex data
- Setup of an internal RAG chatbot
- Industrialization of already prototyped AI projects
If you are working on an application integrating LLMs, a business chatbot, or an intelligent automation system, feel free to contact me via private message.
French
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- "C'est Mon Droit" (CMD)Fullstack & AI Developer | LLM, RAG & Agents | FastAPI & SvelteLEGALJanuary 2026 - Today (7 months)Paris, France* Goals and achievements *Chatbot application allowing a user to access an expert in French law.Implementation of a RAG (chunking, metadata, embeddings, system prompt, etc.) periodically fed by Open Data (updated codes, case law from the Court of Cassation, Council of State, Constitutional Council, etc.).A LangChain agent uses the Qdrant vector database with an LLM (via Mistral API) to provide the most relevant answer by following legal reasoning.The agent also uses tools to connect to various official APIs (e.g., PISTE, Légifrance, Kali, etc.) and can perform additional searches based on the use case.Agent performance is evaluated with Ragas and Langfuse.* Technical Environment *- Languages: Python, TypeScript- Frameworks: FastAPI, Svelte- AI: LLM (Mistral AI), RAG & Agents (Langchain)- Vector DB: Qdrant- Database: PostgreSQL- Tests: Pytest, Playwright- Evaluations: Ragas, Langfuse- Containerization / CI-CD: Docker, Dagger, GitHub Actions
- Association Tous inclusFull Stack TypeScript | Python DeveloperEDUCATION AND E-LEARNINGNovember 2025 - Today (9 months)Marseille, FranceFull Stack Developer as a volunteer for the association "Tous inclus".Development of a fun application for learning numbers and basic decimal calculations.For the inclusion of extraordinary people in an ordinary environment.
- Commandement de la cyberdéfense (COMCYBER)Operational ReservistDEFENSE AND MILITARYApril 2024 - Today (2 years and 4 months)Rennes, FranceFull Stack Developer as an operational reservist for the Cyber Defense Command (COMCYBER).
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Education
- Java/JEE Designer-DeveloperENI Ecole Informatique2020La programmation orientée objet (POO) avec Java, le langage de requête SQL avec SQL Server, le développement en couches et la persistance des données avec Java SE, le développement web côté client – FrontEnd - avec HTML, CSS et JavaScript, le développement web côté serveur – BackEnd - avec Java Enterprise Edition (JEE), utilisation de frameworks pour le développement avec Java EE (Spring).
- Master's degree in Law "Advisory and Estate"Université Aix-Marseille 32008Droit des instruments de paiement, Droit bancaire et boursier, Droit des assurances, Droit des contrats d’affaires, Droit international privé, Droit fiscal, Droit de la consommation et du crédit, Régimes matrimoniaux, Droit de la gestion du patrimoine, Droit des successions et des libéralités, Droit de l’urbanisme, Droit immobilier public et privé.
Certifications
- Learn to create your website with HTML5 and CSS3OPENCLASSROOMS2020
- Learn to program with JavaScriptOPENCLASSROOMS2020