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Emmanuel SauvageES

Emmanuel Sauvage

Supermalter

Full stack / sheets / powerbi / Looker

€550/day
76 projects
Armentières, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Emmanuel

Optimize and automate your tools with a business and performance-oriented approach.

I support companies in designing tailor-made solutions around Google Workspace, web development, and data piloting.

My background as an auditor has given me a strong ability to listen, analyze, and understand business challenges. I quickly grasp needs, constraints, and business objectives, enabling me to propose pragmatic, adapted, and scalable solutions.

Currently collaborating with the Decathlon group (France and Europe), I have designed and deployed several architectures for distributing and managing tools to over 300 stores:

  • Automation of Google Sheets via Google App Script
  • Centralization of parameters and multi-language management
  • Automated report generation (Google Slides)
  • Implementation of dashboards (Looker, Power BI)
  • Management of HR, H&S, operational planning, and stock forecasting

I also work on web development projects (Symfony, API Platform, Vue.js, MySQL) with an approach focused on performance, code quality, and scalability.

What characterizes me:

  • Strong involvement in projects
  • Ability to bridge the gap between technical and business aspects
  • A vision focused on automation, data reliability, and decision support
  • A commitment to building sustainable solutions, not just one-off tools

My goal is simple: to save you time, make your data reliable, and provide you with the right indicators to effectively manage your business.
  • French

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • YEED Group
    Complete migration of a Microsoft 365 tenant and IT environment administration
    CIVIL ENGINEERING
    December 2025 - February 2026 (2 months)
    Nieppe, France
    In a context of reorganization and IT system structuring, I led the complete migration of a Microsoft 365 tenant to a new environment, with a clear objective: to ensure business continuity while strengthening IT security and governance.

    The mission covered:

    • Design and deployment of the new tenant
    • Migration of Exchange Online mailboxes
    • Reconfiguration and optimization of Microsoft Teams environments (teams, channels, permissions, governance)
    • Global Microsoft 365 administration (users, licenses, security policies, compliance)
    • Management and integration of the machine park into the new environment

    Beyond the technical aspects, the challenge was to offer a smooth transition for users, minimize the impact on productivity, and lay a solid foundation for the company's future growth.

    Result: a secure, structured, and fully operational Microsoft 365 environment, aligned with business needs, the success of which led to establishing a long-term partnership with the company.
    Microsoft 365 Administration Microsoft Teams SharePoint Administration Exchange Online Microsoft SharePoint
  • Decathlon France
    H&S Assessment Monitoring Project – Automation of store and CSE reports
    SPORTS
    November 2025 - Today (7 months)
    Villeneuve-d'Ascq, France
    In this project, I collaborated with the Health, Safety & Working Conditions (SST) teams and the stores/CSE regions to automate the collection and production of H&S assessments nationwide.

    The project involved:

    Deploying, via Google App Script, a Google Sheets file per store, automating the collection of data related to workplace accidents, commuting accidents, occupational diseases, absenteeism rates, significant events, training, expenses, and safety checks.

    Centralizing and controlling data in a main Google Sheet to allow verification and comments before generating the final reports.

    Automatically generating a Google Slides presentation per store and per region, via a JavaScript script from Google Sheets, replacing manual collection that previously took 1 to 2 days per store. Today, this operation takes only 5 minutes.

    Providing a monitoring dashboard, allowing managers to view the progress of report generation in real-time.

    Impact: the project significantly reduced the processing time for H&S assessments, improved data reliability and quality, and strengthened the decision-making capacity of managers and CSEs through accurate and automated reports.
    Google Apps Script Google Sheets JavaScript Development Google Slides
  • Decathlon united
    Size Management Project – European bicycle stock forecasting and management
    SPORTS
    July 2025 - December 2025 (5 months)
    Lille, France
    As part of the Size Management project, I worked with European store and operations teams to automate the provision of bicycle stock forecasts, by category and by country.

    The project involved:

    Providing, via Google App Script, a file per European store, to forecast the number of bicycles in stock and in showrooms, broken down by category: children's, adult's standard, and adult's electric.

    Allowing each country to configure its specificities, including product range choices, sales growth, and rental forecasts, to generate the most reliable data possible for stores.

    Integrating language management, so that each file automatically adapts to the language of the respective country.

    Implementing dashboards to monitor the deployment and adoption of the solution in all relevant stores.

    Ensuring the reliability of forecasts and providing stores with a precise and centralized decision-support tool.

    Impact: the solution enabled European stores to better plan their inventory, reduce stockouts and overstock, and optimize bicycle availability to maximize sales and customer satisfaction, while offering an interface adapted to each language and local context.
    Google Apps Script Google Sheets Google Sheets Automation

Reviews

5.0

Out of 5 ratings

Y

Yann

DECATHLON SAS - FRANCE

Reviewed on 3/3/2025

Emmanuel continues to 'maintain' the SH file and propose improvements.
Y

Yann

DECATHLON SAS - FRANCE

Reviewed on 2/24/2025

The project launched in France is now being exported internationally.

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Education

  • Application Developer - PHP / Symfony, Computer Science
    OpenClassrooms
    2019
    Développeur d'application - PHP / Symfony, Informatique
  • DUT, Computer Science
    IUT A de Lille
    2002
    DUT, DUT Informatique

Skill set

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