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Sylvain VandevoordeSV

Sylvain Vandevoorde

Expert UI/UX Designer, Web Integrator, Webmaster

€450/day
2 projects
Lille, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Sylvain

For over 10 years, I have been assisting SMEs and large groups in the creation and redesign of showcase and e-commerce websites, with one priority: designing sites that convert, enhance brand image, and take into account performance, SEO, and accessibility challenges.

👉My website creation services:

UI/UX / Webdesign for websites, landing pages, redesigns

  • User research
  • Wireframing / design system
  • Mockup / prototyping
  • Photomontage
  • Design with Figma

Integration of modern responsive websites / landing pages and Webmastering

  • Transformation of mockups into responsive and performant web pages
  • Integrationon any CMSe-commerce or showcase (Webflow, WordPress, PrestaShop...)
  • Custom integration in **HTML**, **CSS**, and JavaScript
  • Integration ofweb animationson scroll or on load (CSS3, JS ES6, GSAP...)
  • Use ofmodern practices
  • Redesign and maintenance


👉My commitments:

🏎️ Performance


*Optimized production timesthanks to the synergy between my designer and web integrator specialties

*Optimization of web page loading timesintegrated, improving user experience and SEO

💎 Quality


*Optimal display on all devices and browsers:fluid responsive designs and integrations

*Enhancement of your brand image:attention to detail and bug-free display integrations

📈 Efficiency


*Natural referencing:optimization of code and SEO tags

*Improved user retentionthrough attractive visual productions and animation additions

*Contribution to improving your conversion ratethrough a marketing approach used in my designs


Feel free to contact me for more information.
  • French

    Native or bilingual

  • English

    Native or bilingual

  • Spanish

    Basic

  • German

    Basic

Remote only
Primarily works remotely

Experience

  • Octave Octave
    Malt logoOn Malt
    Web Integrator - Webmaster LumApps for E.Leclerc
    RETAIL (LARGE RETAILERS)
    September 2025 - October 2025 (1 month)
    📌 Objective: Transform Figma mockups into functional responsive web pages on the LumApps intranet CMS.

    • Custom development of landing pages in HTML / CSS / JS within the LumApps page editor.

    🎯 Results:
    • On-time delivery with pixel-perfect display and client praise for the quality of work.
    HTML/CSS/JS Figma LumApps Landing Page Web Integration
  • NORD PLUME
    UI/UX Designer - E-commerce Webmaster
    E-COMMERCE
    April 2025 - March 2026 (11 months)
    Nuremberg, Germany
    • Partial redesign and modernization of the UI and UX design of a PrestaShop e-commerce site (Figma, Elementor, HTML, CSS, JS).
    • Support for improving conversion rates and boosting online sales.
    • AI creations and marketing-oriented product image photomontages.
    • E-commerce site animation: updating the carousel, setting up promotions, etc.
    • Implementation of product synchronization modules with ManoMano, TikTok Shop, and Temu marketplaces and their configuration.
    • Implementation of a PayPal payment module.
    • Debugging responsive display issues (mobile and tablet versions).
    • Complete creation of emailing campaigns and management of mass mailings with Brevo.
    • Various webmastering support (domain name migration, updates...).

    🎯 Results:
    • +21% in online sales revenue by the end of the 1st month of support compared to the previous month.
    • +19% in online sales revenue by the end of the 3rd month of support compared to the previous month.
    • +16% in online sales revenue by the end of the 4th month of support compared to the previous month.
    Website Redesign E-commerce Prestashop Webmastering CRO
  • L'AGENT X
    Lead Web Integrator - UI/UX Designer
    RETAIL (LARGE RETAILERS)
    April 2021 - December 2024 (3 years and 8 months)
    Lille, France
    Lead Web Integrator - UI/UX Designer for Idkids and Okaïdi (retail ready-to-wear and toys)

    • Design of mockups for marketing campaigns: homepages, landing pages, emails, and social media (Figma, Adobe Suite).
    • Study of the Idkids CMS and implementation of a code base for smooth development.
    • Integration and maintenance of HTML/CSS/JS templates for the homepages of the Okaïdi e-commerce site and the Idkids marketplace.
    • Custom development of interactive marketing landing pages with advanced animations (CSS3, JS ES6, GSAP, Locomotive Scroll).
    • Technical lead for 3 internal team members on landing page integration.
    • Conducting technical tests for the recruitment of web integrators.
    • Lead and management of freelancers for ad-hoc needs.

    🎯 Results:
    • Rapid and efficient deployment of numerous marketing campaigns under tight deadlines.
    • Quality ensured despite short deadlines, with a focus on:
    - Pixel-perfect responsive web pages.
    - Easy-to-maintain structures.
    - Optimization of loading times and accessibility.


    Lead Web Integrator for Oney (banking sector)

    📌 Objective: Migrate the redesign of the showcase website to the new CMS by adapting existing content to the new design and optimizing responsive display and performance.

    • Analysis of the Oney CMS and its technical specificities.
    • Definition of the technical strategy for a smooth and efficient migration.
    • Integration of responsive HTML/CSS templates and optimization for rapid deployment across a large number of pages.
    • Deployment of these templates.
    • Development of new custom marketing landing pages (HTML/CSS/JS).

    🎯 Results:
    • Integration of around a hundred web pages, with varying levels of complexity.
    • Optimal responsive display and optimized loading times on all devices and browsers.
    • Project delivered within deadlines, with a satisfied client.
    Web Integration UI/UX Design Figma Site Migration or Redesign HTML/CSS/JS

Reviews

5.0

Out of 2 ratings

M

Marie

Octave Octave

Reviewed on 10/1/2025

Sylvain carried out an HTML integration under LumApps for us. He was not familiar with the solution and dug deep to gain full mastery. Nothing to say about the quality of the delivered HTML code - very very clean. Thanks again for your help Sylvain and looking forward to working together again.
O

Olivier

nord plume

Reviewed on 5/21/2025

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Certifications

  • Professional Title: Multimedia Graphic Designer and Layout Artist
    ID Formation
    2011
    Adobe Photoshop Adobe Illustrator Layout Design Web Integration HTML/CSS Webdesign Photo Editing Adobe Creative Suite Print and Web Graphic Design Adobe InDesign

Skill set

Categories