/Sven Charleer


Hi, I'm Sven and I am a Freelance UX Designer & Data Visualisation Expert based near Antwerp, Belgium. I'm available for (remote) freelancing.

Check out my portfolio or contact me at sven.charleer@gmail.com.


I have a unique blend of skills that enables a quick and thorough delivery process from inception to proof of concept and beyond, thanks to 6 years of academic user experience and data visualisation research for multiple European Commission projects at the Human-Computer Interaction group, KU Leuven, and 10 years of software development experience in traditional business software, video games, and web.

I research and design experiences that are useful, usable, and enjoyable, whether it is a service, an app, or data visualisations. Through a human-centred and rapid prototyping approach, I build and evaluate mock-ups and prototypes ranging from mobile to large interactive displays. The iterative nature of the process helps my clients estimate the viability of a concept in early stages and facilitates involvement in every step of the way.

I have been responsible for the research, design, and development of dashboards, data visualisations, and UIs in areas such Unemployment (helping job seekers explore the job market through data exploration tools), Digital Humanities (creating large interactive dashboards for researchers), Video Games (live video game broadcast visualisations and game UIs), Learning Analytics (student dashboards and collaborative visualisation solutions) and more. I have experience teaching and supervising data visualisation design, UX, video game design and development, AR and VR.

Check out my CV (Linkedin or PDF), my portfolio for a selection of my work, and Google Scholar for my scientific publications, or contact me at sven.charleer@gmail.com to learn more.


User satisfaction is a tough nut to crack. As a UX designer, I research and design experiences that your target audience finds useful, useable, and enjoyable, whether it is a service, an app, data visualizations, or a video game idea. Sure, we can attract users with pretty designs, but it is the user experience design that keeps them coming back. Let me help and guide you through the entire journey from idea to happy users.

My UX Process

The process is as follows: we discuss your idea and scope. We collaboratively explore business and user needs through e.g. brainstorms and surveys, after which I research the state of the art and produce preliminary sketches of the product experience. I create digital designs of your vision and interactive prototypes so that both you and your users get hands-on experience which we can further evaluate. Once everyone is happy with the designs, I can help with the transition from prototype to development and final product. You are involved in every step of the way and each step can be repeated as often as necessary, until we get it just right.

Need help with your user experience? Want to learn more, or just have a chat? Do you have questions about the process, do you wish for a more hands-off approach, are you looking for UX help at smaller scope, or have a product that could do with a UX overhaul? Feel free to contact me at sven.charleer@gmail.com.

let's talk

Want to get in touch? Want to learn more about how I can help you? Or just want to have a fun chat? Send a message to sven.charleer@gmail.com!