Tetiana Prätorius
Portrait of Tetiana Prätorius
Email

Product designer in Köln. I design and build websites and digital products, from the first idea to launch.

  • Websites, idea to launch
  • Product & UX/UI design
  • Design systems in Figma
  • AI-native prototyping

Open for freelance and full-time work

New work

2026 — designed and built by me

A runner in an iridescent top against a blue sky, Lumen Health In progress

Lumen Health

In progress

2026 · Health · Website, designed and built from scratch
A man cooking in a sunlit kitchen, tommi app Open case

Tommi

Case study →

2026 · Family recipe app · Live presentation with motion

Selected 2023–25

Apps, dashboards and a concept

Apps and dashboards. A trading and finance app redesigned and released as a UI kit on UI8, a redesign of the software radio DJs use to run their broadcast, and Smart Home, a concept for a calm home interface.

Hover a cover to bring it forward

A woman in a black coat by a moving tram, reading her phone Open case

Capita

Case study →

2025–26 · Trading & finance app · Redesign & UI kit
Smart Home app on an iPhone: rooms, music, smart light and alarm Open case

Smart Home

Case study →

2023 · Smart home app & wall dashboard · Concept
Radio DJ software on an iPad lying on a desk: queue and colour-coded mode buttons Open case

Radio DJ

Case study →

Broadcast software · Client redesign

Archive

Earlier projects · 03

VeloursVintage clothing appCase study, logo, UX/UI↗ Old SnorerSleep tracker appCase study, logo, UX/UI↗ USA-wide DashboardCompany dashboardDashboard, UI↗

What I do

For startups, studios and product teams

  • Websites, idea to launch

    Structure, design and a fast live site, built by me with an AI-native workflow.

  • Product & UX/UI design

    Flows, interfaces and prototypes for apps and dashboards.

  • Design systems

    Components, variables and tokens in Figma that designers and code can share.

  • AI-native prototyping

    Clickable, coded prototypes in days, so ideas get tested early.

About

Köln, Germany

I turn rough ideas into products people can use, and then I build them. Research, interface, design system and the website that puts it online: one person, from the first sketch to launch.

I work AI-native, so a working prototype often comes before a long presentation about one.

Experience
6+ years UX/UI
I do
Product design, design systems, websites
Tools
Figma, prototyping, HTML/CSS, AI
Open to
Freelance and full-time