mathias villerabel

Data Scientist

Salaire / Taux journalier

Paris, France

Freelance

Peut venir sur site

Expertises

PyTorchMachine LearningPythonDeep LearningKerasSQLitePower BIGitNumPypandasAzureData VizualizationData MiningBig Datascikit-learnGoogle Cloud PlatformMySQLSnowflakeTableauData ScienceC++FirebaseDockerDatabricksLinuxGitHubConfluenceAsanaIAAWSClean CodeData EngineeringTensorFlowJava

Langues

AnglaisFrançais

À propos

Introduction

7+ years across consumer goods, geospatial analytics, and finance. I build reliable ML models and large‑scale data pipelines and translate business needs into production systems. Comfortable in multicultural teams (FR/CH/JP)

Liens

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

ML forecasting at scale

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