Hi there, I'm Kevin , a Product Designer, design-system specialist. From UI/UX design to HTML/CSS/JS integration, I design modern web applications, and create experiences for all screen types. Through a design-system, we implement better organisational practices and communication between the different actors of a project. It also allows the implementation of better processes and methods to move in the same direction. This is with a view to ensuring long-term design maintainability in large-scale web projects. I share my work by means of articles, conferences and Twitter feeds. I organised the cssflip Meetup, convening designers, integrators and developers to talk about front-end web topics. Do you wish to discuss any front-end issues you may be having with your team? Find out more about my work? Or simply have a coffee and a chat? Feel free to write to me at this address


Kevin Bizien

Product Designer
Design System Jedi


User interface, from paper wireframing to interface conception respecting your branding.

Read the Yousign case study


User experience, from user research to user tests through user stories.

Read the La Cordée case study

Design System

Design resources for the kbizien website. Find it there the graphical charter, architecture, conventions and good CSS practices for the project.

View the kbizien design system

CSS Playground

Page dedicated to CSS basics and to experimenting with properties, selectors and good overall practices.

Play around with the kbizien CSS Playground


I advise and help companies implement cross-cutting design processes. From product design to front-end development, emphasis is put on implementing scalable and maintainable solutions/tools in line with company needs. High-performance CSS architecture ensures appropriate design evolution in the long-term. I help teams communicate better and forge bridges between designers and developers. My goal is always to combine efficacy and quality. Need help implementing a new project? Refactoring an existing project? Let’s get in touch!

Let’s work together


I coordinate workshops for companies, as well as various other events focusing on the implementation of high-performance, scalable and maintainable CSS architecture. Having previously discussed specifics, workshops can be customised to adapt to issues relating to an existing project. These workshops cover all good practices from UI/UX design to component integration. Knowing how to efficiently design and cut-out an interface, to then optimally architect a CSS is a huge part of project maintenance. Why not start now?

Schedule a workshop
Yousign Illustration


Think digital. Sign online.

How many times have you ended up having to print out a document, sign it, scan it and send it back? Too many, no doubt. With Yousign, sign as many documents as you like with other people without wasting a single minute. And legally, of course.

Case study

La Cordée Illustration


A caring work ecosystem

Are you self-employed, or do you work remotely from home? Do you miss daily social contact? La Cordée offers warm and welcoming coworking spaces. Join the community so you never have to work alone again.

Case study

Hohey Screens


Find the ski resort that suits you best.

Are you planning a ski trip with your friends or family? Prepare your holidays with Hohey, a ski resort comparison site. Find the places that best suit you, compare them and choose your destination.

Case study

Guidr iOS


Helping expats and locals connect.

Discovering new countries and new cities is always exciting. Guidr helps expats and locals connect. Do you also get a bit scared at the idea of going abroad? Get in touch with the expat world!

Case study



Connecting people via a mini-games application.

People spend more and more time on their smartphones. They spend time on social media, play games, chat via dating applications. Yet do these people truly forge real social relationships? Play2meetyou made that possible.

Case study