AI-Powered Usability Testing
From Kanban automation to sophisticated multi-agent usability testing. How I built a Figma plugin that delivers comprehensive usability insights in 2-3 minutes. 👉
I’m a Canadian UX / Product designer currently living in Stockholm Sweden.
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I'm Stefan Twerdochlib (twer•dock•lib) and I build things people can't remember living without.
From vaccination workflows that reached 500,000+ Swedes during a pandemic. E-commerce experiences generating millions in revenue. Design operations that saved companies €3.2M. Custom tools that turned days of work into hours. Teaching frameworks that changed how designers think about their craft.
The theme here isn't the medium - screens, systems, tools, curriculum. It's building infrastructure that becomes invisible because it works. The kind of work where six months later, people can't remember what they did before it existed. Foundational architecture for a design system that's remained solid for 8 years.
For the past decade, I've worked at Electrolux, Wolt, Werlabs, H&M, and TELUS Digital - leading teams, shipping products, and solving complex problems at scale. Some of that work mattered deeply. Some of it was just commerce. I've learned to tell the difference.
I'm dyslexic, which forced me to think in systems and spatial relationships before words. Turns out that's exactly how you need to think when building infrastructure. You see the connections, the dependencies, the patterns that make something essential rather than just functional.
I also teach with Designlab in my spare time, because changing how someone approaches problems matters more than any single design solution.
And I build and restore vintage bikes, dial in unnecessarily precise pour-over coffee, and live in Stockholm with my wife and two cats named after Norse mythology (Yggdrasil & Jotunheimr).
What I'm looking for: Problems where the solution becomes infrastructure. Where you're building the thing people rely on, not just the thing they consume. Healthcare, education, platforms, tools - work where "essential" matters more than "impressive."
If you're building something that should last, let's talk
I've shared thoughts on UX research culture with UserTesting.com, talked about building UX vision at UX Fika, and talked about design systems on podcasts. The full evidence of my public speaking adventures is documented below, but judge for yourself.

I chatted with UserTesting.com about how to build a solid UX research culture. Read it here

A talk about how to make UX matter inside an organization. Find out here

Spoke about designing and testing a checkout flow that didn’t suck.Watch it here

Gave advice to up-and-coming designers on how to survive and thrive in UX. See it here

Chatted with other experts about the up and downs of design systems Listen to it here
Product Design, Interaction Design, UI, Prototyping, Information Architecture, Design Systems, Story Mapping, AI-Enhanced Workflows
Everything from guerrilla testing to proper ethnographic research (yes, I can spell ethnographic correctly most of the time)
WCAG compliance, color contrast ratios, keyboard navigation, screen reader testing—because inclusive design isn't optional
Figma, Sketch, Miro, and whatever new AI tool promises to "10x my productivity" this week
HTML/CSS, SASS, JavaScript, PHP—enough to have dangerous conversations with developers and build functional prototypes... but Claude Code helps a lot these days
If above doesn't tickle your fancy this might
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