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David BellaïcheDB

David Bellaïche

Analytics Engineer

€600/day
1 project
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About David

In data since 2014, I first acquired solid technical expertise in web marketing on the Google stack in an agency, serving international clients (Accor, Chanel, Deezer, Estée Lauder). I then worked as a Data Analytics Consultant at Louis Vuitton. In 2018, I joined OpenClassrooms as a Data Analyst and then Data Director, where I structured the team, defined the data strategy, and deployed a modern data stack to make data accessible and useful to everyone.

Since October 2024, I have been Head of Data at United Heroes. I am leading the modernization of the data architecture, the implementation of star schema models, the automation of CI/CD pipelines with dbt and Airflow, and the centralization of analyses on Redshift and Metabase. I am supporting the implementation of self-service analytics, ensuring quality, governance, and alignment with the strategy.

I am fluent in English, Italian, and Spanish, which allows me to contribute to international projects. My skills cover Python, SQL, dbt, Metabase, Tableau, and the modern data stack ecosystem.

Trained in digital marketing (Master Paris Dauphine) and data science (CentraleSupélec), I also provide training at Paris Dauphine, OpenClassrooms, and Le Wagon.
  • Portuguese

    Basic

  • Spanish

    Fluent

  • Italian

    Native or bilingual

  • English

    Native or bilingual

  • French

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • United Heroes
    Head of Data
    HUMAN RESOURCES
    October 2024 - Today (1 year and 8 months)
    Paris, France
    - Leading the transformation and strategic evolution of the company's data architecture and analytical stack, with definition and monitoring of the roadmap for scalable and robust platforms.
    - Implementation of star schema modeling with fact and dimension tables, and deployment of automated CI/CD pipelines via dbt and Airflow, ensuring centralization of analyses on Redshift and Metabase.
    - Deployment of a self-service analytics framework, allowing business teams to autonomously access reliable data, thus fostering a data-driven culture aligned with company objectives.
    - Leading SQL optimizations and data model improvements, reducing pipeline execution time by over 70% through advanced query engineering and incremental processing.
    - Implementation of best practices in data governance, documentation, and quality management, ensuring the integrity, security, and compliance of analytical flows.
    - Cross-functional coordination with technical and business teams to align data initiatives with the overall strategy and support the acceleration of data maturity within the organization.
    SQL DBT Airflow Amazon Redshift Metabase
  • OpenClassrooms
    Analytics Engineer & Data Director
    EDUCATION AND E-LEARNING
    December 2018 - November 2023 (4 years and 11 months)
    Paris, France
    - Design of the data warehouse architecture (source, staging, and analytics layers) and data transformation flows (ETL/ELT)
    - Definition and modeling of specific metrics (SQL tables)
    - Analytics engineering (dbt & Redshift)
    - Dashboards on Tableau, Periscope & Data Studio
    - Analysis of marketing campaign and product performance: user journey, churn, CAC/LTV, attribution
    - Development of a data strategy in collaboration with data engineers
    - Building and managing a data team, recruitment, roadmap definition
    - Project management (ticketing, prioritization, peer review, ownership, communication)
    SQL DBT Tableau software Dataiku Python
  • Louis Vuitton
    Consultant Data Analytics
    LUXURY GOODS
    June 2017 - December 2018 (1 year and 6 months)
    Paris, France
    - Support on a web analytics tool redesign project in agile (TMS + tagging plan)
    - Analysis of data from a chatbot (python)
    - Analytics project monitoring, requirements gathering, support and ticketing, implementation, dashboarding
    Data Analysis Web project management adobe analytics Tealium Agile methodology

Reviews

5.0

Out of 1 rating

AD

Account deleted

Reviewed on 8/23/2018

We greatly appreciated collaborating with David: he is an expert in his field, communication is fluid, and deadlines are met. We would be delighted to work with him again.

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Education

  • Data Scientist
    CentraleSupelec
    2021
  • Master 2 Digital Marketing and Communication
    Paris Dauphine
    2015

Skill set

Categories