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Xavier StevensXS

Xavier Stevens

Data Analyst

€600/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Xavier

Title: Experienced Data Analyst with expertise in SQL and a strong track record in project management with renowned clients.

Description:
With over 5 years of experience as a data analyst, I have acquired significant expertise by working on numerous projects (often outsourced) with "large account" clients such as PagesJaunes, Meetic, Decathlon, and Pierre & Vacances.
Specializing in SQL, combined with in-depth knowledge of tools like BigQuery, Dataiku, Looker Studio, and Excel, allows me to provide precise analyses and transform complex data into actionable insights.

As a consultant, I am committed to digging into data to identify trends, provide findings, and insights to optimize performance and strategic decision-making. My experience in outsourcing with large accounts has allowed me to develop a strong adaptability and understand the specific challenges of each sector.

Key Skills:
- Advanced mastery of SQL and regular expressions
- In-depth experience with BigQuery, Dataiku, Looker Studio, and Excel.
- Superficial knowledge of Python and ML logic.
- Mastery of business intelligence tools (Looker, MicroStrategy, PowerBI).
- Ability to manage and analyze large datasets.
- Strong communication and presentation skills to translate data into understandable insights.

I am committed to providing superior quality services and working closely with my clients to ensure their data and analysis goals are met with precision and efficiency. Let's talk about how I can bring added value to your next data project.
  • French

    Native or bilingual

  • English

    Fluent

  • Spanish

    Conversational

Can work on-site
Paris (up to 50km)

Experience

  • Istaari
    Data Consultant & Senior Data Analyst
    August 2023 - Today (2 years and 10 months)
    Article 1:
    - Modeling (BDT - BQ) and data provisioning for paid and analytics tools
    - Analysis & reporting on acquisition performance
    - Analysis & reporting on conversion performance
    - User journey analysis
    - Segmentation of the youth database & profile analysis
    - Creation of a score per youth (reflecting their potential engagement with the program)

    One Direct:
    - RFM Analysis
    Sales data modeling (SQL - Hex)
    Creation of RFM segments
    Segment analysis
    Creation of a score per customer to qualify the customer base

    Hombox:
    - Cross-performance analysis of SEO & SEA

    Nexans:
    - Acquisition data modeling (strong SEO vertical)
    - Creation of a reporting dashboard, CODIR cockpit type

    Respire:
    - Data modeling and provisioning (Airbyte, BQ - SQL)
    Acquisition data (Meta, Bing, Google Ads, GSC, GA4, LinkedIn, Shopify, Klaviyo, etc.)
    - Analysis and reporting on data
    - Creation of multiple dashboards (acquisition, retention, P&L, churn & subscriptions, etc.)

    Work With Island:
    - Data modeling and provisioning
    ETL Connections (via Stitch)
    Data modeling in BigQuery (SQL)
    - Creation of cockpit dashboards for CODIR and operational teams

    Loulou group:
    - Project management
    - Responsible for all data quality issues
    - Interface between BI & data eng. teams
    - Assistance with data modeling and creation of final dashboards for control teams
    MySQL BigQuery SEO Google Ads SEA Google Analytics Data Analysis Meta Ads LinkedIn Ads Shopify DBT Google Cloud ETL Stitch Airbyte Matomo Matomo Analytics Bing Ads Klaviyo Hubspot RFM Segmentation hex Looker Studio Dashboard Data Modeling
  • Decathlon
    Mission - Data Analyst & SEO Consultant
    November 2021 - July 2023 (1 year and 8 months)
    Lille, France

    • Market analysis for editorial planning of 300 editorial content around sports practice.
    • Performance monitoring via GCP: 30k positions/month, 300 new articles.
    • Definition of objectives and creation of dashboards + reporting management
    MySQL SEO Reporting Data Analysis Market Research Looker Studio Dashboard
  • PagesJaunes SA
    Mission - Data Analyst
    February 2019 - July 2023 (4 years and 5 months)
    Paris, France
    Data Analysis to aid strategic decision-making
    • Ad hoc analyses and insights for the Digital Marketing Director, Comex support, etc.
    • Business analyses for SEO, SEA, audience
    • Weekly reports and summaries for the Audiences & Marketing CODIR of Pagesjaunes.fr. Creation of the Google Cloud Data Lake for SEO/SEA/web analytics
    • Data collection and processing, creation of relevant tables.
    • Implementation of data-based dashboards.
    SEO Google Ads BigQuery Google Cloud GCP Cloud Artificial Intelligence Dashboard Data Modeling Data Analysis

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Education

  • MSc Digital Marketing, Digital, Marketing
    SKEMA Business School
    2018
    Msc Digital Marketing, Digital, Marketing
  • Master in International Business
    SKEMA Business School
    2018
    Master's Degree, International Marketing

Skill set (47)

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