Raphael Gallula

Data Scientist | Machine Learning

Salaire / Taux journalier

Paris, France

Freelance

Expertises

Data SciencePythonAzureMachine LearningDataikupandasNumPyMicrosoft SQL ServerRequêtes SQLLLMs / Large language modelsNLP / Natural Language ProcessingSnowflakeAutomatisations No-codeTableauData VizualizationIA

À propos

Introduction

Data Scientist with specialized expertise in AI-driven customer analytics and marketing intelligence for enterprise clients. Built Mercedes-Benz France's Customer 360 DataMart consolidating 20 years of data, automated multi-country financial reporting for BNP Paribas, and developed LLM agents for database querying. Master's in AI from PSL University with proven skills in Python, Azure, SQL, and machine learning to transform complex data into actionable business insights.

Liens

Expérience de travail

Data Scientist - Analyst

Omnicom

oct. 2025 - oct. 2025

1 mois

Paris, France

• Processed and consolidated Mercedes’ multi-channel marketing and financial data to build and analyze the complete customer conversion funnel, developed locally (VS Code) and deployed on Azure Blob (Pandas, NumPy, Azure, GCS). • Designed and developed a Mercedes-Benz France Customer 360 DataMart (~20 years of historical data) by consolidating multiple data sources (customers, vehicles, fleet, orders, and deliveries). Built data pipelines for integration, standardization, matching, deduplication, and monthly updates to ensure a reliable and up-to-date customer repository, used for scoring models and ML-based targeting. (Azure Blob, Python, SQL Server) • Modeled Aldi’s email engagement data, creating KPIs and cohort analyses to track user retention and behavioral trends. • Cleaned, structured, and organized Armonia’s client data, developing AI algorithms to ensure optimal data quality. Applied machine learning to identify opportunities and promote additional services to existing clients. (Python, streamlit, API Sirene )

Data Scientist & AI Research Engineer

Arval BNP Paribas Group

sept. 2024 - oct. 2025

1 an 2 mois

Monthly automation of financial reporting across 20+ countries, including the processing of historical files: design and implementation of a Control-M–orchestrated workflow for automated file collection, standardization of Excel reports, and data mapping using Python scripts to unify formats into a single structure, followed by data cleaning and processing in Dataiku, and the creation of interactive dashboards in Tableau. ---- Master’s thesis: Development of an embedded voice assistant for vehicles, combining local speech recognition, on-device LLM, contextual dialogue management, dynamic web access, and appointment scheduling to assist drivers.

Artificial Intelligence Engineer (Research Intern)

Dassault Systèmes

mai 2024 - oct. 2024

6 mois

78140 Vélizy-Villacoublay, France

Subject : "Leveraging AI for dependability and safety data analysis" I worked on integrating CATIA with large language models (LLMs) to automate the generation of failure modes (FMs) for functions within subsystems. I optimized result visualization, improved precision, and contributed to comprehensive FMEA (Failure Mode and Effects Analysis) of entire, complex systems with multiple subsystems. By developing algorithms to assess the plausibility of each failure mode, I enriched the LLMs with data from standards, public accident reports, and private data. This allowed me to propose reliability and safety studies based on in-depth experience, while laying the groundwork for future full integration of the tool within CATIA. Python, CATIA, Pixtral AI

Data Scientist & AI Research Engineer (Intern)

BayBridgeDigital

mai 2023 - juil. 2023

3 mois

Intern Position: Data Scientist Subject: "How to Query a Database Using Natural Language" Designed and developed an LLM agent using the OpenAI, LangChain, Streamlit, and Snowflake frameworks. Created a user-friendly graphical interface in Python that enables users to interact with a database using natural language, whether in written or spoken form. The interface also includes data visualization capabilities. Ensured complete protection and confidentiality of data, with no data leaks.

890th Paratroopers Brigade (Infantry)

Israel Defense Forces

nov. 2018 - juil. 2020

1 an 9 mois

Israelândia, GO, 76205-000, Brésil

Military service.


Formation

Prepa - Technion

2018 - Présent

8 ans 10 mois

lycée Moliére

French Baccalauréat Scientific

2017 - Présent

9 ans 10 mois

PSL Research University

Master IASD Artificial Intelligence, Systems, Data, Systems, Data

2024 - 2025

1 an 2 mois

Université Paris Dauphine - PSL

MSc Computer Science I2D ( IT, Decision Making, Data ), MIDO

2023 - 2024

1 an 1 mois

Université Paris Dauphine - PSL

BSc Computer Science, MIDO

2022 - 2023

5 mois

Université Paris Cité

Double degree in Mathematics and Computer Science

2020 - 2022

2 ans 1 mois


Licences et certifications

Dataiku ML Practitioner

Délivré le : oct. 2024

Certifié par Dataiku

Dataiku Core Designer

Délivré le : sept. 2024

Certifié par Dataiku

Dataiku Advanced Designer

Délivré le : sept. 2024

Certifié par Dataiku

PSC 1

Délivré le : juin 2023

Certifié par Paris-Dauphine

C2I (Certification Informatique et Internet)

Délivré le : mai 2022

Certifié par Université Paris Cité

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