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Rayane DeclercqRD

Rayane Declercq

Analytics Engineer - Data Analyst

€700/day
2 projects
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Rayane

Data Analyst for over 5 years located in Paris, I specialize in transforming your data into strategic key results aligned with your business objectives.

Expert in data analysis using Python, SQL, Power BI, and Google Cloud Platform (GCP), I have led projects that generated significant added value in various sectors, including cosmetics and luxury.

My role goes beyond mere technical expertise; I make it a point of honor to understand and prioritize your needs in each project, in order to maximize my impact and your return on investment.

Furthermore, I am committed to being pedagogical and invested in mentoring and talent development, by sharing best practices and establishing rigorous analysis processes using SQL, Python, and Excel.

Looking forward to discussing your needs :)
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 50km), Lille (up to 50km), Aix-en-Provence (up to 50km)

Experience

  • Smallable
    Senior Data Analyst
    FASHION AND COSMETICS
    January 2024 - Today (2 years and 7 months)
    Paris, France
    Missions:

    In this role, I developed dynamic discount algorithms that adjusted prices based on stock turnover and price sensitivity, to maximize margin and accelerate end-of-season sales.
    This new pricing generated a+10% margin gaincompared to the previous year.

    I also designed a brand scoring system, based on profitability, inventory, and purchase frequency, to prioritize strategic collaborations and adjust supplier negotiations.

    Finally, the orchestration of Python jobs automated **80% of SQL/API flows**, freeing up time for advanced analysis and business customization, while improving responsiveness to market trends.

    Tools:
    • Tableau/Data Studio (reporting, visualization),
    • Python (algorithms, automation),
    • Airflow (workflows),
    • SQL/API (internal and external sources)
  • Padel Magazine
    Malt logoOn Malt
    Data Engineer / Data Analyst
    December 2023 - December 2023 (1 month)
    Paris, France
    Implementation of a dashboard for the study of professional Padel players in France.

    This was a two-part project;

    Part 1 - Implementation of a processing pipeline for semi-structured PDF files.
    These PDFs are from the FFT (Padel Ranking) website. Each monthly file contains over 200 pages, with each page featuring a table of over 70 players (a total of over 5000 players per file, for each gender).

    Therefore, a Python application was produced for updating from an executable created for this purpose, which orchestrated the work in the following order:
    - Downloading files for Men/Women from the FFT website
    - Collecting raw data from the PDFs
    - Transforming data to manage file quality and standardization
    - Making it available in a Parquet file for analysis in Power BI.

    Part 2 - Production of the analysis in Power BI Desktop
    Implementation of key indicators and other information requested during various exchanges with the client.

    Data Storytelling in 3 distinct approaches:
    - Global KPIs, such as socio-demographic elements related to the development of Padel in France (Number of clubs, licensed players, nationalities, temporal evolutions)
    - Top Players: Ranking, rank evolutions (+/-), number of points and trend evaluation
    - View by Region/Club (in volumes and ranking)
    DAX Statistical Data Analysis Data Visualization Data Analysis Microsoft Power BI Project Management Data Processing Microsoft Excel Consulting AI and Data Analysis Python Dashboard Scraping Business Analysis ETL Reporting Power Query Data Pipeline
  • Guerlain
    BI Project Manager @ Elevate Agency
    FASHION AND COSMETICS
    May 2023 - Today (3 years and 3 months)
    Paris, France
    Within the Data Guerlain team, I managed the design and deployment of a new BI application focused on Customer Relationship Management (CRM). I was involved in the migration to a GCP architecture, from requirements gathering to dashboard design and user testing.

    I also highlighted data storytelling techniques to enhance the customer view.

    Furthermore, I shared best practices to optimize the use of Power BI dashboards.
    Project Management SQL Power BI Acceptance Strategy Data Quality Business Intelligence Data Visualization Data Storytelling

Reviews

5.0

Out of 2 ratings

F

Franck

Padel Magazine

Reviewed on 5/1/2024

Great work. I recommend!
F

Franck

Padel Magazine

Reviewed on 12/26/2023

Great job. I will work with Rayane again.

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Education

  • Master of Science
    NEOMA Business School
    2019
    MS Marketing & Data Analytics
  • Master, Business and Market Economics
    Université Paris 1 Panthéon-Sorbonne
    2018
    Master, Economie des Entreprises et des Marchés

Skill set

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