Product builder · Prague
I build products people actually use.
Twelve years of turning ideas into shipped products, from a mobile game played by 4 million people to AI that writes medical paperwork so doctors can face their patients. Currently Product Lead at Auris One.
Selected work
Case studies
Giving doctors their time back
AI-assisted medical documentation, used and piloted by hospitals and hospices across Czechia.
Read the case study →Bringing product discovery to hotel software
First UX specialist on four products and eight product managers.
Read the case study →Designing a parkour game for millions
Tetrun: Parkour Mania, from controller design to 160+ motion-captured animations.
Read the case study →-
Punx Arcade
My new indie studio for small, loud multiplayer arcade games. First up: Ski Mania. punxarcade.com
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Woltair
A/B-tested lead-generation flows (+3 % conversion) and a “Masterform” that made back-office client matching faster.
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wellbe
The first on-demand booking app for massages and fitness coaches in Czechia. Validated, designed and marketed it myself.
How I work
Four habits I bring to every team
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Talk to users first
At Previo I built product discovery into the process, so we shipped what hoteliers needed instead of what we guessed.
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Systems beat one-offs
A shared design system cut design time by more than 80 % and kept four products consistent.
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Measure, then decide
At Woltair, lead-generation flows got A/B tested instead of argued about. The winner lifted conversion by 3 %.
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Push it over the line
I've founded, launched and shipped. An idea only counts once real people use it.
Milestones
The path so far
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Founded Punx Arcade
An indie studio for small multiplayer arcade games. Also this year: Auris One won 1st place at the Czech DIGI@MED Award 2026.
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Auris One: from UX & CX Designer to Product Lead
Joined the health-tech startup in May, leading the product since November.
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Woltair: Product Designer
Marketplace websites and the Superfix back-office system.
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Previo: Product Design Lead
First UX specialist in the company, later leading a team of three designers.
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Founded wellbe
On-demand booking for massages and fitness coaches.
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Cableek: Game Designer & 3D artist
Tetrun: Parkour Mania, which grew to more than 4 million players.
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SHM Klub Praha-Počernice
Fourteen years of coordinating activities and summer camps for kids, as a volunteer.
Master's degree, Faculty of Physical Education and Sport, Charles University · UX Design (Laba) · Project Management (ICT Pro) · Creative Skills for Innovation (Google)
About
“Let your life be your best project.”
I started in games, fell for UX and ended up owning products end to end. I'm drawn to ordinary but maddening problems, the kind people have stopped noticing, and I'm happiest when a team ships the fix.
Beyond work
- Built my own house with my brother (and a lot of YouTube).
- Represented Czechia in the Red Bull Can You Make It challenge.
- Won the “Beat The Heat” competition with Tetrun.
- Workouts, reading, podcasts and travel.
References
What colleagues say
“Ondra brought a fresh and modern design approach to the project, significantly improving the user experience. […] Ondra taught me and the team the importance of thorough preparation in the UX/UI phase before development begins.”
“He played a crucial role in introducing Product Discovery to our process. […] Ondra is driven, adaptable, and never afraid to take on new challenges, whether it’s advancing the team’s UX maturity or building a house from scratch.”
“In his thinking he always tried to look into the problem from different views and especially from the client side. Working with Ondra was super easy, both professionally and personally.”