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liliandoublet/README.md

Hi, I'm Lilian Doublet, welcome to my GitHub 👋

English Français

Python SQL pandas Power BI scikit-learn Hugging Face AWS Snowflake Docker FastAPI LangChain


Data & AI professional based in Paris.
I bridge deep technical work (French NLP, ML, RAG) and business-facing analytics (SQL, Power BI, forecasting), turning data into decisions clients can act on.

🔭 Open to Analytics Engineer, Data Scientist, AI Engineer roles.


About Me 🚀

👨‍💻 Passionate about Data Analytics & Science & AI

🧑‍🎓 Lifelong learner, always curious and autonomous

🧩 Problem solver at heart, always chasing the next challenge


🎓 Master's Thesis

Master's Thesis PDF

Graduating project (DBAN, Rennes School of Business, 2026): fine-tuning CamemBERT on French political texts for stance and topic classification. Graded 87/100.


My Experiences 👀

Crédit Mutuel Alliance Fédérale, Capsanté Ambulances


🛠️ Tech stack

Languages: Python, SQL, DAX

Data analysis: pandas, NumPy, exploratory data analysis (EDA), statistical analysis, KPI design, A/B testing, data storytelling, Excel

Data viz / BI: Power BI (star schema modeling, DAX measures), Streamlit, Matplotlib, Plotly, Seaborn

ML / NLP: scikit-learn, Hugging Face Transformers (CamemBERT), time series forecasting (ARIMA, SARIMA, LSTM)

GenAI / LLM: Retrieval-Augmented Generation (RAG), LangGraph, Anthropic Claude API, Gemini API, Mistral API, ChromaDB, Ollama

Databases: PostgreSQL, VerticaPy

Cloud / Infra: AWS (Lambda, S3, EventBridge), Docker, FastAPI

MLOps / tooling: MLflow, Git, GitHub Actions (CI), pytest, pre-commit, ruff, uv


📌 Featured projects

  • askmydocs: RAG assistant for querying your own documents. Built with ChromaDB, the Gemini API and a Streamlit / Docker stack, with an evaluation harness measuring hit rate and keyword recall.

  • techradar: Serverless AWS agent (Lambda, S3, EventBridge) that scrapes and summarizes tech news with Google Gemini and LangGraph, delivered by email via SendGrid.

  • HR-Dashboard: Interactive HR analytics dashboard (Python, Dash, Plotly) built during my Data Analyst internship at Crédit Mutuel Alliance Fédérale. Turns 50,000+ HR records into KPIs and self-service reporting for the HR Digital Transformation team.

  • sherlock: Production-grade French NLP pipeline. Built with uv, Pydantic, Typer CLI, loguru, MLflow, CamemBERT, pytest and GitHub Actions CI.

  • newflights: Airfare optimization app. React / TypeScript / Vite frontend, FastAPI backend.

  • walmart-sales-forecasting: Sales forecasting dashboard in Power BI. Star schema, DAX measures and SARIMA forecasting reaching 2.22% MAPE, designed to support business decision-making.



🚧 Work in progress

  • health-data-platform: End-to-end healthcare data platform on synthetic patient data (Synthea): dbt pipelines, Snowflake/BigQuery warehousing, Kafka streaming, Airflow orchestration on Kubernetes.

  • datascience-toolbox: Reference data science toolkit, 14 exercice and their solution notebooks spanning supervised, unsupervised, NLP, computer vision, recommendation and reinforcement learning. Built with uv, ruff, scikit-learn, LightGBM, PyTorch, Jupyter.

  • moliere: Local, GDPR-compliant French writing assistant, available in two versions: one powered by an LLM, the other by the rule-based Grammalecte engine.


📫 Get in touch

LinkedIn Email Location

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  1. askmydocs askmydocs Public

    RAG assistant to query your own documents, built with ChromaDB, the Gemini API/ Ollama and a Streamlit stack.

    Python 1

  2. techradar techradar Public

    Serverless AWS agent that scrapes and summarizes tech news with the Gemini API, delivered by email.

    Python

  3. newflights newflights Public

    Airfare optimization app with a React / TypeScript / Vite frontend and a FastAPI backend.

    Python

  4. HR-Dashboard HR-Dashboard Public

    HR analytics dashboard built in Python during my Data Analyst internship at Crédit Mutuel Alliance Fédérale (HR Digital Transformation team).

    Python

  5. walmart-sales-forecasting walmart-sales-forecasting Public

    Analyse et prévision des ventes de 45 magasins Walmart : pipeline Python, dashboard Power BI 5 pages, et modèle SARIMA (MAPE 2,2 %).

    Jupyter Notebook

  6. health-data-platform health-data-platform Public

    Work in progress. End-to-end healthcare data platform on synthetic patient data (Synthea): dbt pipelines, Snowflake/BigQuery warehousing, Kafka streaming, Airflow orchestration on Kubernetes.

    Shell