Mateusz Meller

Digital Product Designer

Contact

mateusz@mmeller.com

X / Twitter

@mellerdesign

Mateusz Meller

Digital Product Designer

Contact

mateusz@mmeller.com

X / Twitter

@mellerdesign

Mateusz Meller

Digital Product Designer

Product Desing for StartUps & Scale-ups

Transform Your Product Experience From Day One

The design partner for founders who need to elevate their interface,
build design systems, and scale with confidence.

The design partner for founders who need to elevate their interface, build design systems, and scale with confidence.

Book a Discovery Call

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Previously at TwentyThree™ — trusted by SaaS teams across Europe.

“

Top of the class UI designer who would execute the final pixels of everything with the last detail considered and systemise it.

Sarper Erel

Building Last.app - all in one restaurant OS

“

Top of the class UI designer who would execute the final pixels of everything with the last detail considered and systemise it.

Sarper Erel

Building Last.app - all in one restaurant OS

“

Top of the class UI designer who would execute the final pixels of everything with the last detail considered and systemise it.

Sarper Erel

Building Last.app - all in one restaurant OS

“

Top of the class UI designer who would execute the final pixels of everything with the last detail considered and systemise it.

Sarper Erel

Building Last.app - all in one restaurant OS

Services

Product Design

Intuitive interfaces for complex products. Proven with CRM, video platforms, and e-commerce products.

Design Systems

Scalable component libraries that keep your product consistent and speed up development.

Websites

High-converting websites and landing pages. Beautiful, fast, and optimized to turn visitors into customers.

Work

2023-2024

TwentyThree Webinars

Fully-featured product that enhances webinar experiences with drag-and-drop planning, customizable templates and real-time audience engagement features like polls and Q&A.

2023-2024

TwentyThree Webinars

Fully-featured product that enhances webinar experiences with drag-and-drop planning, customizable templates and real-time audience engagement features like polls and Q&A.

2023-2024

TwentyThree Webinars

Fully-featured product that enhances webinar experiences with drag-and-drop planning, customizable templates and real-time audience engagement features like polls and Q&A.

2023-2024

TwentyThree Webinars

Fully-featured product that enhances webinar experiences with drag-and-drop planning, customizable templates and real-time audience engagement features like polls and Q&A.

2023-2024

TwentyThree Video Marketing Platform

All-in-one video marketing platform that combines webinars, video hosting, video analytics and video recording.

2023-2024

TwentyThree Video Marketing Platform

All-in-one video marketing platform that combines webinars, video hosting, video analytics and video recording.

2023-2024

TwentyThree Video Marketing Platform

All-in-one video marketing platform that combines webinars, video hosting, video analytics and video recording.

2023-2024

TwentyThree Video Marketing Platform

All-in-one video marketing platform that combines webinars, video hosting, video analytics and video recording.

2025

Goatcast.fm Podcast Platform

Podcast hosting platform aimed at helping creators manage, publish, and grow their shows effortlessly.

2025

Goatcast.fm Podcast Platform

Podcast hosting platform aimed at helping creators manage, publish, and grow their shows effortlessly.

2025

Goatcast.fm Podcast Platform

Podcast hosting platform aimed at helping creators manage, publish, and grow their shows effortlessly.

2025

Goatcast.fm Podcast Platform

Podcast hosting platform aimed at helping creators manage, publish, and grow their shows effortlessly.

About

Hi, I’m Mateusz 👋

I’m a product designer helping founders shape and ship digital products.
I focus on product design and design systems, from early concepts to production-ready interfaces.
I’ve worked with SaaS companies like TwentyThree and Instream CRM, leading design on new features, redesigns, and full system overhauls.

“

Mateusz is a amazing and creative UI Designer. No matter how complex the problem is, he will always come up with a clean solution. I'm really enjoying user interfaces created by him and appreciate his work.

Damian Gądziak

DevChain

“

Damian Gądziak

DevChain

“

Damian Gądziak

DevChain

“

Damian Gądziak

DevChain

“

I wholeheartedly recommend Mateusz to everyone who is looking for skilled UX and Product Design specialist!

Oliwia Gogolewska

Project Manager

“

I wholeheartedly recommend Mateusz to everyone who is looking for skilled UX and Product Design specialist!

Oliwia Gogolewska

Project Manager

“

I wholeheartedly recommend Mateusz to everyone who is looking for skilled UX and Product Design specialist!

Oliwia Gogolewska

Project Manager

“

I wholeheartedly recommend Mateusz to everyone who is looking for skilled UX and Product Design specialist!

Oliwia Gogolewska

Project Manager

Let's build something together

Tell me a bit about your product or idea. If it’s a good fit, I’ll reach out to schedule a discovery call to talk through goals, scope, and next steps.