Hey 👋, I'm Marcin
...briefly.
My career evolved from brand design to complex B2B and B2C systems. Today I work in a hybrid of Figma and the IDE: ideas start as frames, become working prototypes on production code built with agentic tools and heavy use of MCPs, and some have even landed as shipped PRs to Home Assistant's frontend. It's also why I love working with developers: we look at the same working reference instead of a static mockup.
My decisions start from UX best practices and proven patterns, the kind of instinct a decade of complex products builds, and then get tested against reality: interviews, usability tests, surveys, and behavioral data when it's available.
Currently I'm a Senior Product Designer at the Open Home Foundation, working on Home Assistant. My main focus is Automations and Intelligence: how people create and manage automations, and how AI fits into the platform. Beyond that, I contribute across the product, from UX audits to features that lower the barrier to entry.
In recent years, I worked in renewable energy on web SaaS applications for solar and wind farms.
Previously, I designed a WYSIWYG website builder and CMS at lastminute.com.
At the beginning of my career, I freelanced on numerous projects, some showcased below.
Throughout my career, I’ve gained experience across industries - and I’m open to exploring new ones.
🏠
IoT / Smarthome
⚡
energy / renewables
☁️
saas
🎨
personal branding
🧳
travel / ota
🛡️
insurance
💊
health
Currently I'm working…
at Open Home Foundation designing for Home Assistant
Before that
at Codibly a renewable energy 🍃 solutions software house
Previously
at lastminute.com a travel product company
The beginnings
as a freelancer 🌈
Tool stack
Over the years, the tools have evolved—and so have I. My main tool for design and prototyping is Figma, though I also use generative UI tools such as Figma Make and AI-assisted code editors to create first drafts and explore ideas faster.
My UX practice depends heavily on each project’s context and the company’s setup. For analytics and research, I use Hotjar; when possible, I also schedule interviews with target users and use Google Docs and Forms.
tl;dr
Generally, I try to be tool-agnostic and simply use whatever makes my work better and faster. This is especially true in the current age of ✨ AI.
DESIGN
Figma
Figma Make *
Affinity *
Rive
Framer
Protopie
Illustrator
Photoshop
After Effects
Sketch
abstract
Wordpress
Principle
UX / ANALYTICS
Lyssna
Google Forms
Hotjar
Hubspot
Miro
UserTesting
Optimizely
CODE
Github *
LOW/NO CODE
Code Editors *
HTML5
CSS3
3D
Spline
Shapr3D
Blender
Cinema 4D
WORKFLOW
Whisperflow
NotebookLM *
AI Agents *
Granola
Slack
Raycast
JIRA
* I'm actively learning
Process and methods
There is no single process I apply to every project. Because shipping a product is a team effort, I adapt my approach to the project’s needs, available resources, and the people involved.
My responsibility is to make sure I have enough evidence to begin iterating with confidence, using the principles of design thinking.
tl;dr
I always push for as much end-user feedback as possible, and plan my work accordingly to the resources that are available.
KNOWLEDGE IN INDUSTRIES
🏠
smarthome
⚡
energy / renewables
☁️
saas
🎨
personal branding
🧳
travel / ota
🛡️
insurance
💊
health
SKILLS & METHODS
design system / style guide
design hand-off
AGENTIC CODING
high fidelity prototypes
MOBILE DESIGN
RESPONSIVE DESIGN
WCAG / a11y
Empathy Maps
Customer journey map
competitive analysis
desk research
heuristic review
stakeholder interview
5 why's
hmw's
user stories
card sorting
a/b testing
qa/dev support
Endorsements
After years of freelance collaboration, I’ve dedicated the last decade to bringing my expertise into the heart of corporate B2B and B2C teams.
About me
I grew up on computer games and building LEGO Technics, which developed in me a passion to create, appreciate good design and to constantly ask the question:
“How does it work?“
Today I use my passion to work with people and create meaningful experiences and tools.
