Freelancer profile translated to English.

Description

I design digital products that work — especially where AI comes into play.

As a Senior Product & Systems Designer, I help product teams make AI features usable: clear flows for digital products, copilots and LLM interfaces, mental models that don't overwhelm users, interactions that fulfill the promise of AI rather than undermining it.

In parallel, I build design systems for teams that have grown rapidly and now need structure: scalable and documented, in Figma. I also actively use AI coding tools for rapid prototyping and building apps.

I work remotely or in Hamburg, on a daily or project basis.

I also work with international teams in English, Spanish, and Russian.

Portfolio: dwertmann.io

Languages

German
Native or bilingual
Spanish
Fluent
English
Fluent
Catalan
Conversational
Vietnamese
Basic
Russian
Fluent
French
Conversational

Workplace preferences

Can work on-site

Hamburg (up to 50km), Berlin (up to 20km), Lübeck (up to 10km), Kiel (up to 10km)

Ravelist
UX Design, AI-Assisted Coding
March 2026 - April 2026 (1 month)
UX flows, design, and implementation of an app based on TypeScript and Docker using AI-assisted workflows with Codex, Claude Code, and ChatGPT. Normalization of data, matching with external sources in a user interface designed for users to make decisions within seconds:
User Experience Design Design System TypeScript artificial intelligence Back-End Development
ChangeCloud
UX Designer, Web Designer, AI Consultant
January 2026 - April 2026 (3 months)
Conception, planning, design, and implementation of the platform for ChangeCloud (

Employees were also coached in advanced AI workflows.
AI Consulting User Experience Design User Interface Design Web Design Design System
Terapivakten-Kurs
UX Designer
November 2025 - December 2025 (1 month)
Complete redesign of the course platform of terpivakten-kurs.no, based on the design system of Terapivakten.
Design System User Experience Design AI Consulting Web Design User Interface Design

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UX/UI Designer Certification
Designlab
2024
UX/UI Designer Certification

Jan Dwertmann

UX & Product Designer

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