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Mathieu GrenierMG

Mathieu Grenier

Dev expert E-commerce: PrestaShop - Odoo - Shopify

€400/day
Montpellier, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Mathieu

I have been a freelance developer since 2022, a developer since 2009, and I have already worked with many clients from different backgrounds, directly or through agencies like 21-interactive in the Occitanie region.

I have worked, among other things, for the online store bijouxindiens.net where I completely redid the site's design and considerably improved the SEO of this Prestashop store. Creation of automatic translation modules via AI. Creation of automatic posts on Facebook, Instagram, and TikTok.

I worked for the Montpellier bowling alley to update the site's visual and work on the online booking module.

I worked for the ready-to-wear stores AHB to migrate their Prestashop site to Shopify and develop AI automations via Claude to connect the CRM to the stores, and bank reconciliation with the Pennylane API.

I worked for Restalliance on the development of a dedicated intranet portal application for entering meals in the group's various healthcare facilities.
  • French

    Native or bilingual

  • English

    Fluent

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

Experience

  • bijouxindiens.net
    Prestashop Developer
    E-COMMERCE
    September 2024 - January 2026 (1 year and 4 months)
    Montpellier, France
    Redesign of the PRESTASHOP design, SEO correction, improvement of the overall performance of the sites, replacement and development of new modules, development of AI automation workflows for translation, and posting on LinkedIn, Instagram, and TikTok. Retrieval of customer reviews and automatic AI response to reviews.
    Prestashop SEO Referencing E-commerce PHP Symfony AI Automation
  • Easystrat
    Outsourced CTO
    SOFTWARE PUBLISHING
    June 2022 - June 2026 (4 years)
    Montpellier, France
    Outsourced CTO, working a few days a week and assisting the CEO in his technological directions for the company.
    Assistance in managing a team of about ten developers, validating PRs. Team meetings.
    Implementation of tools (openproject, nextcloud) for time and task tracking.
    Linux Server Svelte 5 PHP Symfony Team Management CIO
  • ahb
    Prestashop Developer
    E-COMMERCE
    December 2024 - September 2025 (9 months)
    Montpellier, France
    Migration of online stores from Prestashop to Shopify, AI workflow automation with CRM and the Pennylane application.
    Prestashop Shopify E-commerce AI Automation Pennylane

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Education

  • Master professionnel, Programmation informatique, applications spécifiques
    IUP génie physiologique informatique
    2009
    Master professionnel, Programmation informatique, applications spécifiques
  • DEUG, Sciences du vivant
    Université des sciences de poitiers
    2006
    DEUG, Sciences du vivant

Skill set

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