
mathias villerabel
Data Scientist
Salaire / Taux journalier
Paris, France
Freelance
Peut venir sur site
Expertises
Langues
Expérience de travail
Data Scientist RCA
Swiss ReFreelance
sept. 2023 - Présent
3 ans 2 mois
Zurich, Suisse
• Built an IFRS-17 actuarial/financial simulation engine (cash flows, discounting, Contractual Service Margin) to benchmark EY outputs and ensure regulatory compliance. • Automated end-to-end reconciliation, cutting manual work from multi-day reviews to <2 h/run and improving auditability & reproducibility. • Designed and optimized PySpark pipelines in Palantir Foundry, scaling to billions accounting records per batch and integrating with downstream financial reporting systems.
Consultant
TechplacesFreelance
janv. 2023 - Présent
3 ans 10 mois
Paris, France
Data Scientist Forecasting
Pernod RicardFreelance
janv. 2023 - juil. 2023
7 mois
Paris, France
• Developed time-series forecasting and ML models (ARIMA, gradient boosting) and designed a custom PyTorch framework for scalable training/inference. • Improved 3-month demand forecasts by 12% vs. FA baseline.
Synspective Inc.Freelance
déc. 2019 - mai 2023
3 ans 6 mois
Tokyo, Japon
Applied Scientist
nov. 2022 - mai 2023
7 mois
Tokyo, Japon
Applied Scientist
déc. 2019 - déc. 2022
3 ans 1 mois
Tokyo, Japon
• Automated detection of new construction from SAR time series (InSAR coherence + intensity), improving urban growth monitoring. • Delivered a cloud‑based Earth observation platform with dynamic caching on Google Cloud, reducing data latency for SDG indicators in economics and environment. • Built scalable object detection models for maritime trade (containers, cars, trucks, ships); awarded 2nd Prize at the NEDO Challenge. • Applied Earth observation and machine learning methods during NASA, ESA & JAXA hackathons to address real‑world challenges such as wildfire monitoring and prediction.
Machine Learning Intern
National Institute of Informatics
mars 2019 - oct. 2019
8 mois
Tokyo, Japon
Working toward putting lab cutting edge technology in real time/life application in drone. - Applying deep learning methods toward detecting humans and human behavior: - Using mobilenetV2 and segmentation and regression map to detect human. - Using LSTM to extract temporal information to detect human actions. - Custom build toward a light and robust use in drone application. - Integrated complex deep learning model in drone embedded system for real life application. ( paper Accepted with @prendingerLab : Drone-based Situational Awareness System. Link : https://ieeexplore.ieee.org/document/8819942 ) - Testing and enhancing deep learning model with real field test experimentation.
Data Scientist intern
SURPRIZEMI
févr. 2018 - oct. 2018
9 mois
Région de Paris, France
- Evaluation & targeting of best customer using clustering methods and Evolutionary algorithms. - Prediction of customer behavior using majority vote classifiers. - Attribution of beauty products to customer using max bipartite matching.
private teacher
Anacours
sept. 2017 - juil. 2018
11 mois
Région de Paris, France
Private teacher for High School 6 hours by week. Oriented toward obtaining high school certificate with high honors. - Mathematics and scientific courses. - Methods toward defending an idea using argumentative speech. - Heavily focused on understanding notions more than learning them by hearth.
train attendant
iDTGV
juil. 2012 - août 2017
5 ans 2 mois
69340 Francheville, France
Seasonal employment 2 months every year for summer (Jully/august). Train attendant in trains travelling from Paris to all major cities in France : - Reception, sales and customer service. - Accounting, stock management.
Formation
Sorbonne University
Master's degree
2016 - 2019
4 ans
Portfolio

Prototypage computer vision
