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

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 see the original

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 · 04

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’m Tetiana Prätorius, a product designer in Köln. For more than four years I’ve designed apps and dashboards: a trading app whose UI kit sells on UI8, radio DJ software, a smart-home energy app and Tommi, a family recipe app. Now I work AI-native and build complete websites myself, from the first idea to launch.

Based in
Köln, Germany
Experience
4+ years UX/UI
Open to
Freelance & full-time

Contact

Email

Elsewhere

Status

Open for freelance projects and full-time roles.