Boti Kis , UI/UX & Product Designer in Vienna (Wien), Austria

Joined a Series-A SaaS where the Figma files no longer matched the product and the same component lived three inconsistent ways in the code. I made the case for a real design system, aligned design and engineering on one source of truth, and rebuilt the app inside it, cutting the time to ship a new component from days to hours. Then I wired AI into the workflow through MCP so designers draft system-compliant components straight into Figma, roughly doubling design output. I also replaced hour-long configuration screens with a self-serve onboarding wizard, taking setup from around 60 minutes to 10 and cutting onboarding support load by 30%.

DungeonFog makes map-making software for tabletop RPGs, used by over 100,000 people. As lead designer and producer I wore every hat: the product's UX and UI on one side, the marketing that sold it on the other. I analyzed usage and interviewed users to prioritize the roadmap, and the features I shipped drove a 40% usage spike and a lasting 4 to 6% lift in the active user base. I also designed the full UI for Project Deios, funded at €420,000 on Kickstarter, eight times its goal. Designing the tool one day and the campaign for it the next, I carried both the craft and the story to market as the company grew.

dotsandlines is a Vienna creative and branding studio. As Head of UI/UX I built the design practice from the ground up, growing the team from two to six with zero attrition over two years and mentoring juniors up to mid-level. I stayed accountable for every UI/UX project that left the studio, more than 30 in that time, and brought structure to a brand-led shop: design sprints, lean UX, rapid prototyping, usability testing and accessibility, so the work held up in real use, not just on the page.

allaboutapps is a Vienna mobile app development agency. I designed 30+ native mobile apps across transit, retail and banking, owning UX end to end from research and wireframes to tested, shipped product. And I helped turn a dev-led shop into one that takes design seriously: running workshops, embedding user research and usability testing from the start, and lifting the UX standard across every client engagement.

As a senior iOS developer at allaboutapps I shipped native apps hands-on, from concept through code, including banking products used by over a million people. I ran code reviews and Scrum and had a hand in steering the team. The engineering instinct in my design starts here: knowing what's actually buildable, and what motion really costs.

Where it all started. With the iPhone still new, I taught myself Objective-C and began building and shipping iOS apps as a freelancer, right in the early App Store gold rush. Fifteen years on, that beginning still shows: a designer who has always lived close to the code.

I started out chasing the universe, studying astronomy and physics at the University of Vienna. Two fields, one habit: taking enormous, messy systems and breaking them down into something you can actually reason about. I left the telescope for the screen, but the pull never left. The love of deep space, of light earned out of the dark, is the same world this site is built from. Every interface I design still begins with the question the night sky taught me: what is really going on underneath?