Contact
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@mateusz_meller
TwentyThree
Video Marketing Platform
TwentyThree
Video Marketing Platform
TwentyThree is an all-in-one video marketing platform that combines webinars, video hosting, and video analytics.
TwentyThree is an all-in-one video marketing platform that combines webinars, video hosting, and video analytics.


As part of the Design Team at TwentyThree, I contributed to the redesign of the entire Video Marketing Platform.
After establishing a new design language in the Webinars product, we were tasked with creating a unified and modern experience across all core features. I designed most of the platform views, features, and components. Sander Kuypers set the overall design direction, designed key views, and provided thoughtful feedback that helped shape the final result.
The outcome was a cohesive and scalable interface that improved usability and brought visual consistency across the entire platform.
As part of the Design Team at TwentyThree, I contributed to the redesign of the entire Video Marketing Platform.
After establishing a new design language in the Webinars product, we were tasked with creating a unified and modern experience across all core features. I designed most of the platform views, features, and components. Sander Kuypers set the overall design direction, designed key views, and provided thoughtful feedback that helped shape the final result.
The outcome was a cohesive and scalable interface that improved usability and brought visual consistency across the entire platform.
Year
2023 - 2024
2023 - 2024
Company
TwentyThree
TwentyThree
Team
Mateusz Meller
Sander Kuypers
Thomas Madsen-Mygdal
Steffen Fagerström Christensen
Julius Altenburger
Mateusz Meller
Sander Kuypers
Thomas Madsen-Mygdal
Steffen Fragestrom Christensen
Julius Altenburger
Mateusz Meller,
Sander Kuypers,
Thomas Madsen-Mygdal,
Steffen Fragestrom Christensen,
Julius Altenburger















About
About
About
I'm a Product Designer specializing in UI/UX design for digital products.
My technical background and early experience with HTML/CSS/JS set me apart.
I create intuitive and visually appealing user interfaces that enhance user experience.
Let's work together to bring your digital product vision to life!
I'm a Product Designer specializing in UI/UX design for digital products.
My technical background and early experience with HTML/CSS/JS set me apart.
I create intuitive and visually appealing user interfaces that enhance user experience.
Let's work together to bring your digital product vision to life!
Services
Services
Services
Product Design
Product Design
User Experience Design
User Experience Design
User Interface Design
User Interface Design
User Interface Design
UX Audits
UX Audits
Design Systems
Design Systems
Web Design
Web Design
Contact
Contact
Contact
Feel free to drop me a line at mateusz@mmeller.com.
Feel free to drop me a line at mateusz@mmeller.com.
Copyrights @ mmeller.com 2025