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Karl Duponchel - UI/UX Designer and Web Developer based in France

Introduction

Hi ! I'm Karl Duponchel, a

UI/UX Designer and web

developer based in

France.

About me

me

Karl, 24yo based in Rouen, France. Web, technologies and sports lover.

4 years of experience in full-stack web development, e-commerce solutions, and creative design, with a strong focus on structured, efficient, detail-oriented, and impactful digital experiences.

I specialize in building dynamic websites and intuitive interfaces, ensuring both functionality and aesthetic appeal.

WORKS

PersonalERP

This application is my personal ERP, built from scratch with NextJS, Prisma, PostgreDB, and TailwindCSS. It allows me to manage my business and personal data, such as invoices, orders, and payments in order to keep track of my finances.
Personal ERP

PadoueAgence

Padoue Agence is a French commercial agency specializing in designing, creating content and making advertising campaigns. The website is built using WordPress and Elementor. I also took care of the website hosting, DNS and SMTP configuration.
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BrikxConsulting

BRIKX Consulting supports executives in developing regenerative leadership by combining cognitive performance and life balance. The company offers a method based on neuroscience and nutrition to restore decision-making ability under pressure, through structured programs covering stress management, sleep, digital attention, and positive psychology.
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StudioByL

Studio By L is a website representing the work of a nail artist, and the ability to take contact with the artist. The website is built using a custom CMS and a ReactJS framework.
Studio By L

Professional Experiences

Freelance Developer

2025-now

At the same time as my work, I also develop websites and applications for clients.

WordPressNextJSBucket S3SQLTailwindCSSDockerHostingSEOExpo GO

SNT2

2024-now

Web consulting and full stack web development of BtoC and BtoB e-commerce websites. Management of an n8n connector between e-commerce platforms and a ERP.

PrestaShopn8nPHPData EngineeringSQLWordPressHesk

Attineos Applications

2023-2024

Full stack web development and design, re-built the extranet.

ReactJSSymfonyDocker

Sphere Immo

2022-2023

Full stack web development of the BtoC website, using ReactJS and Symfony.

ReactJSSymfony

PC Partners

2021-2022

Front-end web development of the extranet and the BtoC website and mobile apps for clients.

NextJSSQLReact NativeTailwindCSS

Latest articles

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Contact me

Get in touch with me :)

contact@karlduponchel.fr
Book a call