l
loic_laffineur

Loïc L

@loic_laffineur

From messy data to ready to use results

France
French, English
About me
I’m a Data Scientist & Analyst with a Master’s in Statistical Engineering and experience delivering end‑to‑end data solutions. I worked on France’s national health database (SNDS), building fraud‑detection pipelines that improved F1‑Score by +15% and identified €500k+ in fraud. As a freelancer, I processed a 5M‑row, 12‑file health dataset (~2.4 GB) in one day — cleaned, merged, validated, and delivered ready‑to‑use. I focus on clean, documented, reproducible work: structured datasets, predictive models, automated pipelines, or Streamlit apps — built for clarity and impact.... Read more

Skills

l
loic_laffineur
Loïc L
Offline • 

See my services

Data Cleaning
I will clean, structure and document your messy dataset with python
From$50 / projectMore details
Generative Models
I will build a rag pipeline to generate accurate content from your documents
From$150 / projectMore details

Portfolio

Work experience

Health.gov

Data Scientist Apprentice

Health.gov • Full-time

Sep 2022 - Sep 2023 • 1 yr

French National Health Insurance (CNAM), Paris - Developed and optimised fraud detection models on large-scale healthcare claims data (SNDS): achieved +15% F1-score vs. baseline and flagged €500k+ in fraudulent reimbursements. - Built automated ML pipelines with advanced feature engineering and SHAP-based explainability reports for both technical teams and business stakeholders.