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Loïc LaffineurLL

Loïc Laffineur

Data Scientist & Analyst | Python · ML · SQL · BI

€300/day
1 project
Paris, FR
0-2 years
Python
Machine learning
SQL
PowerBI
Data Analysis

Average response time: 1 hour

Freelancer profile translated to English.
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About Loïc

I transform raw data into concrete decisions —
from prototype to production.

Experience:
— CNAM (national health data, SNDS): +15% F1-Score ·
>€500,000 in identified fraud · automated pipelines ·
dashboards for business and management teams
— Freelance mission: ETL on national health data,
5M+ rows (Python, Pandas)

Education: Master ISDS — Sorbonne & ISUP (Statistician Diploma)
· TOEIC 940/990

What I can deliver:

🔧 Light Data Engineering
Cleaning, structuring, ETL/ELT, Python pipelines

📊 Data Analysis & BI
Power BI dashboards, business KPIs, automated reporting, EDA

🤖 Machine Learning
Predictive models, classification, anomaly detection, SHAP

🧠 GenAI & LLM
RAG pipelines, LoRA fine-tuning, FastAPI + Streamlit deployment

5 portfolio projects on GitHub · 1 client review 4/5
Available for remote missions — any sector · short or long term
Insurance
Consulting and Audits
Telecommunications
Health and Wellness
E-commerce

  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Caisse Nationale de l'Assurance Maladie
    Data Scientist — Fraud Detection
    HEALTH AND WELLNESS
    September 2022 - September 2023 (1 year)
    Paris, France
    Fraud detection on national health data (SNDS) — +15% F1-Score, >€500,000 in identified fraud, +30 flagged anomalies. Development of automated targeting pipelines integrated into annual routines (Python, SQL, SAS, R). Dashboards and deliverables for business and management teams.
    Python SQL Machine learning SAS Data Analysis
  • Collège Louis Pasteur
    Intern, description
    May 2021 - May 2021
    Observational teaching internship — mathematical popularization for middle school students from 6th to 9th grade.

Reviews

4.0

Out of 1 rating

C

Cpts

coordintatrice - CPTS Du Grand Libournais

Reviewed on 4/7/2026

Loic was able to adapt to our specific request, listen to our constraints, and be highly productive. His company was also very pleasant during the day. I recommend him, but not too much, as I wish to be able to use his services again.

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Education

  • Master ISDS & Statistician Diploma
    Sorbonne University & ISUP
    2023
  • Mathematics Bachelor's Degree
    University of Évry Val d'Essonne
    2021

Certifications

  • Advanced SQL with BigQuery
    Kaggle
    2025
  • Machine Learning Explainability
    Kaggle
    2025
Loïc's certifications are only visible to Malt Community members

Skill set

Data science
Data visualisation
NLP
Clustering
Pandas
Streamlit
Pytorch
TensorFlow
Docker
Generative AI
Google Cloud Platform (GCP)
Computer Vision
Deep Learning
ETL
Microsoft Power BI
Microsoft Excel
PostgreSQL

Categories