Jan Roose Email & Phone Number

Hradec Králové, Czechia

Kaloricke Tabulky by Dine4Fit is the #1 health & fitness app in the CEE region, with over 10M users. You can use it to track your caloric intake, macronutrients, and physical activities.We’re improving KPIs across the board by refining our brand, building a roadmap, talking to users daily, and consistently shipping new features.In 2023, I started working.

Hradec Králové, Czechia

Prague, Czechia

Production music professionals typically rely on keywords to find music. AIMS changes that by using AI models to enable searches via links, files, or natural language. We designed the new AIMS web platform* and created over 40 custom client decks.Key Achievements:- Designed an AI-powered music search platform- Defined a new brand and design system.

San Francisco, California, United States

We founded Fireball to bring D&D-style role-playing games to mobile. Our app lets you go on epic adventures with friends, using chat and dice. We also built a robust character builder, map editor, and a matching system—fully native for iOS and Android.To bring this idea to life, we got $1.5M in funding from VC and angel investors, including the creator of.

Prague, Czechia

Databreakers developed a tool called Booster, which can increase e-shop revenue by 5-25% using AI. I designed the original version of the platform and created a landing page. Another tool we collaborated on was Promoter, which enhances the efficiency of Facebook ads.Key Achievements:- Designed two AI-powered tools- Collaborated with businesses like Makro.

Prague, Czechia

With Daytrip, you can book a trip from city A to city B and explore amazing sights along the way with an English-speaking local driver. I redesigned their web platform and defined a new design system.Key Achievements:- Redesigned the entire platform- Used by over 1M travelers from 130+ countries- Established a new design system- Designed a pitch deck that.

Global

Member of Toptal, the top 3% of world’s designers. Toptal is known for its rigorous hiring process

San Francisco, California, United States

SpaceKnow is on a mission to index the physical world. I joined in 2015 to design their analytical tool, allowing anyone to perform AI-powered satellite image analysis directly from their browser.Key Achievements:- Developed a first-of-its-kind UX- Received praise from the geo-analysis community- The Analytics platform helped in securing a $4M+ Series A.

Hlavní Město Praha, Česká Republika

ZOOT is a well-known fashion e-shop in Czechia that allows users to easily order, try on, and return clothing. My task was to optimize the shopping experience on mobile.

Karlovy Vary, Czechia

In high school, one of my first clients was Kokiskashop, a reseller of garden furniture and home decor. I managed their social media, created banners, and got insights into e-commerce. A few of the posts I published got thousands of shares, which I now find quite cool.

Ústí Nad Labem, Czechia

One of my first jobs involved cold calling people to conduct user research on topics like their political views, phone service satisfaction, and similar subjects.