Freelancer profile translated to English.
Back to original languageAbout Alexandre
Your website is slow, poorly referenced, or difficult to update?
Yourwebsiteis not generating the expected results:
- loading time too slow
- poor Google referencing
- difficulty updating your website
I design and optimizefast websites**, focused on **technical SEOand performance, with an approach inspired by high-traffic sites (media level like Le Monde or Télérama).
Website creation and redesign
I work on:
- WordPress migration to lighter architectures
- fast and maintainable website development
Goal: a **fast website**, well-referenced and easy to manage.
Technical SEO & web performance
I improve the visibility and speed of existing sites:
- website loading time reduction
- optimized semantic HTML structure
- Google indexing improvement
- accessibility (WCAG / RGAA)
Why entrust your project to me?
I have over 16 years of experience in web development. I worked for 5 years on the redesign of LeMonde.fr and Télérama.fr, two high-traffic websites (millions of visitors), where performance, technical SEO, and stability are critical.
This experience now structures my projects.
My expertise
- website creation and redesign
- technical SEO
- web performance / Core Web Vitals
- WordPress / WooCommerce
- Shopify
- React / Svelte / Astro
- HTML / CSS / JavaScript
- front-end architecture
- accessibility WCAG / RGAA
Goal: A fast, well-referenced website capable of generating concrete results in the long term.
Have a project? Let's talk about it
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 30km), Lyon (up to 30km), Lille (up to 30km), Bordeaux (up to 30km), Nantes (up to 30km)
Experience
- Le MondeRedesign of the editorial website lemonde.frPRESS AND MEDIAJuly 2018 - March 2023 (4 years and 8 months)Paris, France
High-traffic website redesign & technical SEO
Client ContextParticipation in the complete redesign of LeMonde.fr, one of the largest French-language news sites, within a team of five back-end developers. The project involved a site receiving millions of readers daily, with very high requirements for performance, natural referencing, accessibility, and stability.Mission AccomplishedDesign and development of the new platform's front-end architecture: page structure, editorial templates, mega-menu, newsletter templates, and subscriber journeys for Le Monde, Le Nouvel Obs, and Télérama. Development of the entire system in native HTML, CSS, and JavaScript on a PHP / Phalcon stack, without a front-end framework. In parallel, creation of React components and internal editorial tools for publishing teams.Expertise and Tools UsedHTML5, CSS3, JavaScript (Vanilla JS), React, PHP, Phalcon, BEM + Atomic CSS architecture, web performance, technical SEO, Core Web Vitals, accessibility (a11y), front-end architecture, high-traffic editorial systems, rendering optimization, and code maintainability.Results AchievedImplementation of a robust, high-performance, and scalable front-end architecture capable of supporting traffic of several million daily visitors. Contribution to a site optimized for technical SEO and Core Web Vitals, while ensuring excellent maintainability and high stability. The developments have supported an editorial system publishing several hundred articles per day with a high level of reliability and optimized loading times. - TéléramaRedesign of the editorial website telerama.frPRESS AND MEDIAMarch 2023 - February 2024 (11 months)Paris, France
Website redesign, performance & technical SEO
Client ContextParticipation in the complete redesign of Télérama.fr, a reference media in the world of culture and TV programming. The project aimed to modernize a high-traffic site, capable of managing a large volume of varied editorial content while improving performance, natural referencing, and user experience.Mission AccomplishedDesign and development of the site's front-end architecture: navigation structure, editorial templates, section pages, reusable component system, and TV program interface (schedule and program details). Development in native HTML, CSS, and JavaScript on a PHP / Phalcon stack, without a front-end framework. In parallel, creation of React components for internal tools used by editorial teams.Expertise and Tools UsedHTML5, CSS3, JavaScript (Vanilla JS), React, PHP, Phalcon, BEM + Atomic CSS architecture, web performance, technical SEO, Core Web Vitals, accessibility (a11y), front-end architecture, design systems conception, and high-traffic editorial systems.Results AchievedDeployment of a high-performance, scalable, and easily maintainable front-end, capable of handling daily publications on cultural content, reviews, series, movies, podcasts, and TV programs. Contribution to an architecture optimized for technical SEO, Core Web Vitals, and stability, ensuring an excellent user experience without reliance on a JavaScript framework. - alxdsn.fr/studioFreelance — Senior Web Developer · SEO & PerformanceSOFTWARE PUBLISHINGNovember 2009 - Today (16 years and 8 months)Paris, France
Website Creation, Website Redesign & SEO
Client ContextSince 2009, I have been assisting SMEs, startups, freelancers, and artisans in the creation, redesign, and optimization of their websites. The issues encountered are often the same: slow site, insufficient referencing, complex administration, dependency on plugins, or technical debt hindering project evolution.Mission AccomplishedDesign and development of custom websites, redesign of existing sites, WordPress optimization, Shopify store creation, business web application development, and internal tools. I also work on front-end architecture, HTML/CSS integration from Figma mockups, landing page creation, responsive HTML newsletters, and migrations to more modern and performant architectures.Expertise and Tools UsedHTML5, CSS3, JavaScript, TypeScript, React, Svelte, PHP, WordPress, WooCommerce, Shopify, Elementor, MJML, technical SEO, Core Web Vitals, WCAG/RGAA accessibility, performance optimization, semantic HTML, structured data JSON-LD, front-end architecture, and UX.Results AchievedDelivery of fast, scalable, and easy-to-administer websites, designed to offer excellent mobile performance, a solid SEO architecture from launch, and simplified long-term maintenance. My approach is based on the requirements acquired during the redesign of high-traffic sites like LeMonde.fr and Télérama.fr, now applied to projects of all sizes to improve the visibility, performance, and longevity of my clients' websites.
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Education
- Continuing education front-endalxdsn.fr/studio2026React TypeScript Next.js Svelte Astro SEO technique Core Web Vitals Accessibilité WCAG / RGAA Architecture front-end
- Management Information Technology BTSLycée turgot2006Formation orientée développement web, HTML, CSS, JavaScript, bases de données, architecture logicielle et conception d'applications web.