Gauthier Brault
Senior Data Analyst | Analytics engineer
Salaire / Taux journalier
Paris, France
Mobilité : Île-de-France
Freelance
Peut venir sur site
Expertises
Langues
À propos
Introduction
📚 Expérience dans le conseil Data et en client final - Communication orale et écrite claire et fluide - A l'aise dans l'animation de réunion - Bonne posture client : je sais adapter et vulgariser mon discours à tout type de profil en rendant des concepts complexes compréhensibles - Expertise orientée métier : j'aime travailler en étroite collaboration avec les interlocuteurs métiers pour bien cibler les objectifs et les besoins - Autonomie et force de proposition
Expérience de travail
Data Analyst
AccorFreelance
avr. 2025 - Présent
1 an 7 mois
92130 Issy-les-Moulineaux, France
👉Data Analyst within the Procurement Digital Factory • Business Analysis & Requirements: Collaborate closely with business stakeholders to understand data requirements, translate them into technical specifications, and define appropriate data solutions. • ETL & Data Integration: Manage data ingestion pipelines into Snowflake via APIs from various source systems, including procurement and declaration tools, CRM, PIM, and Zendesk. • Data Warehousing & Data Modelling: Define business rules, data transformations, and processing logic across Snowflake layers. Design and implement reporting-oriented datamarts using star-schema modelling. • Data Visualization & Reporting: Develop and deploy Tableau dashboards to monitor supplier spend, hotel remuneration, supplier & product performance, adoption & engagement to the Accor procurement tools.
Analytics Engineer
Groupe Pierre & Vacances - Center ParcsFreelance
oct. 2024 - mai 2025
8 mois
Paris, France
👉Analytics Engineer for the Business & Customer Analytics team and CRM department - Work closely with the business team to understand their data needs and translate them into technical requirements - Data warehousing : design Data models on DBT in order to build datamarts in Google BigQuery for the Customer Care Center - Dashboarding : build, deploy and maintain customized performance reporting on Tableau (turnover, conversion rate, etc.) - Conduct deep dive analysis using Python and SQL to deliver insights on customer satisfaction and population targeting for the CRM department.
Data Analytics Engineer
Enedis
déc. 2023 - oct. 2024
11 mois
👉Data Analyst and Analytics Engineer within the Customer & Territory department - Collect and transform phone calls history from the Datalake and design a data model - Create a call forecasting model with XGBoost and Prophet (Timeseries ML models) - Data provision for business teams and automation of data pipelines in Dataiku - Creation of performance dashboards to steer the phone activity with Power BI - Deployment of reporting for Enedis' national hypervision to supervise the 25 regional directions in France
BearingPoint
oct. 2021 - déc. 2023
2 ans 3 mois
Paris, France
Consultant Data & Analytics
mars 2023 - déc. 2023
10 mois
Paris, France
👉Mission Christian Dior Sales Data Analyst within the Planning Department - Development and optimization of a sales and turnover forecasting tool on watches and jewelry for the Planning Department. - Collection and transformation of sales data, purchase orders, inventories and forecasts to create a robust Data model. - Creation of interactive dashboards by zone, month, collection and segment on Power BI with business teams. 👉Mission Lansweeper (SaaS Product) Data Analytics Engineer -Extraction of financial & marketing data sources with Fivetran ETL tool (CRM Salesforce, Google Analytics, Google Ads, Netsuite) - Data transformations and data modeling on DBT. - Storage and building Data marts in Snowflake for reporting purposes. - Developing the data workflows from the raw layer to the data mart in the data platform by designing a proper data architecture with DBT. - Build reporting for Marketing and finance data domains on Power BI with business teams in agile method. 👉Mission Lacoste (Retail) - Support Lacoste's Data migration strategy towards a new ERP and PLM tool in the Product architecture. - Proposal of a Pub/Sub architecture in a MS Azure environment.
Analyste Data & Analytics
oct. 2021 - mars 2023
1 an 6 mois
Paris, France
👉Mission France Télévisions Data architecture & Data strategy for the CIO - Data Architecture: arbitration of a Data storage strategy with the CIO, support the design of Data architecture projects, define a proper Data governance by developing a Data catalog tool and GDPR standards. - Data strategy: set up of a Data mesh organization to be implemented in the SteerCo with the CIO, steering the Data projects of all the DTSI Data domains with the Data owner and Data steward. 👉Ministère de l'Education Nationale et de la Jeunesse - Réalisation d'une Analyse d'Impact relative à la Protection de Données (AIPD) en vue de répondre aux exigences du RGPD sur les logiciels Pronote et EDT.
Data Scientist
ALTEN
avr. 2021 - oct. 2021
7 mois
Sophia Antipolis (06)
Finance, Bank, Insurance sector - Innovation department 👉Creation of a Robo-Advisor which aim to provide personalized investment advices for financial advisors: - Creation of a Chatbot, implementation of NLP pipelines, assimilation of financial vocabulary (NLP framework) - Collection of historical stock market data and clients portfolio with MongoDB - Sentiment analysis of the press and twitter to anticipate the next market cycles (Web scraping & API) - Development of a micro services architecture and a front-end for the bot with streamlit, deployment of the project with Docker in an agile environment.
Professeur particulier de mathématiques
EISTI
sept. 2018 - oct. 2020
2 ans 2 mois
Cergy, France
Khôlleur de Mathématiques pour les classes préparatoires intégrées de l'EISTI.
Développeur web
Новосибирский Государственный Университет (НГУ)
mai 2019 - août 2019
4 mois
Novossibirsk, Oblast de Novossibirsk, Russie
Statistiques et développement web sur le site de l’université : Création de 4 pages web et ajout de nouveaux frameworks (bootstrap). Gestion de la base de données avec SQL/PostgreSQL. Statistiques sur les données des contributeurs du site web avec python (Scipy, pandas, numpy, matplotlib). Développement web : HTML5/CSS3/PHP/JavaScript
Formation
Université de Cergy-Pontoise
Master 2 (M2), Mathematiques appliquées et statistiques
2020 - 2021
1 an 1 mois
👉Core modules: Advanced Probabilities, Time Series, Statistical learning, linear optimization
Ecole internationale des Sciences du Traitement de l'Information
Diplôme d'ingénieur, Mathématiques appliquées et Data science.
2018 - 2021
3 ans 1 mois
Diplôme d'Ingénieur génie mathématiques et Data science 👉Core modules: Machine Learning, Deep learning, Optimization, NLP, Data mining, linear models Linear algebra, Statistics, Bayesian inference, Data visualization
CPGE, lycée Fabert, METZ
2015 - 2018
3 ans 1 mois
Classes Préparatoires aux Grandes Écoles Mathématiques Physique et Sciences de l'Ingénieur. Domaine d'études MPSI - MP
lycée Thomas Masaryk, VOUZIERS
Baccalauréat Scientifique
2012 - 2015
3 ans 1 mois
Spécialité mathématiques
Licences et certifications
MDM 101 - MDM Solution Fundamentals
Délivré le : sept. 2022
Microsoft Certified: Azure AI Fundamentals
Délivré le : août 2022
TOEIC 840/990
Délivré le : janv. 2021
Certification Python 3
Délivré le : sept. 2020