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Tristan M.TM

Tristan M.

WordPress and Symfony Development

€150/day
Lille, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Tristan

Freelance web developer based in Lille since 2020, I help companies with concrete web projects, whether it's creating a website, evolving an existing application, or stabilizing a production environment.

My background has led me to work both as a freelancer, on showcase and e-commerce sites, and within more complex organizations like Decathlon or Giphar. This dual experience has given me a very pragmatic approach to development.

As a freelancer, I design and deploy custom WordPress sites, often with WooCommerce, integrating existing mockups and going beyond simple theme configuration. I regularly intervene on advanced customizations, performance optimizations, and SEO. I also work with Symfony to develop more complex business features or backend logic tailored to client constraints.

In parallel, my current role as a technical production expert has taught me to manage sensitive environments.
I ensure the link between technical teams, users, and tools, by analyzing incidents, data, and usage to continuously improve products. This experience directly influences my freelance work approach: I always think "after going live".

I also have a solid background in backend and application maintenance.
This has taught me to be rigorous, to quickly diagnose blocking bugs, and to intervene without breaking existing systems.

Concretely, I work autonomously, with a real focus on understanding needs. I am proactive, propose solutions, and attach great importance to communication, especially with non-technical stakeholders.

I am available for website creation or redesign missions, specific development, maintenance, or technical reinforcement on existing projects, remotely or in Lille and its region.
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Decathlon
    Production Expert
    September 2023 - Today (2 years and 9 months)
    Villeneuve-d'Ascq, France
    Technical Production Expert: Guaranteeing functionality within a development team. Key facilitator between users and the API/software, providing technical support and guiding optimal resource utilization. Responsible for data analysis to inform strategic decisions and product improvement. Proactive in managing technical alerts and communicating with clients, ensuring rapid response to production incidents.
  • Freelance
    Web Developer
    January 2020 - Today (6 years and 5 months)
    Lille, France
    Design and deployment of responsive showcase and E-commerce sites (WooCommerce). Advanced theme customization and graphical mockup integration (HTML/CSS/JS/SASS). Configuration and optimization of plugins to improve SEO and loading performance. Development of specific functionalities using the Symfony framework. Management of relational databases (MySQL). Needs analysis: Gathering client requirements, writing specifications, and defining functional specifications. Autonomous project management: Meeting deadlines, tracking deliverables, and training clients on CMS usage. Maintenance & Support: Managing security updates, backups, and bug resolution (troubleshooting).
  • ComUe
    Web Developer
    PUBLIC SECTOR
    October 2018 - December 2019 (1 year and 2 months)
    Villeneuve-d'Ascq, France
    Within the COMUE Lille Nord de France, I participated in the creation, organization, and maintenance of a website developed under TYPO3 as part of a European university project dedicated to exchanges between partner universities. My role consisted of structuring content, ensuring information consistency, integrating regular updates, and guaranteeing the proper functioning of the site for users from different institutions and countries.
    HTML5 CSS TYPO3 PHP phpMyAdmin

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Education

  • Web application integration developer
    Openclassroom
    2018

Certifications

  • ITIL Foundation
    People cert
    2025

Skill set

Categories