Decisive Thinking,

Clear Design.

Dutch designer, based in Berlin. I've spent 15 years in complex domains: fintech, automation, enterprise B2B. Often as the first or only designer. I like the hard problems, the ones where you need to understand systems, regulations, and real human needs all at once.

I studied at Goldsmiths in London, which shaped how I think. Always looking for the underlying structure. But I'm not precious about it. I ship. Products I've designed are still running years later, handling billions in transactions.

Currently obsessed with AI as a design tool. Using it to compress timelines without losing craft. I've been giving talks about what I'm learning, and I'm looking for teams who want to build something ambitious together.

01

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Experience

Ubio

Lead Product Designer

AI-powered automation for Google, Trivago and Microsoft

2022

2025

Bendesk

Lead Product Designer

Pension platform for Delivery Hero, SoundCloud, SumUp

2021

2022

SumUp

Senior Product Designer

First subscription product, 4M merchants

2020

2021

Designit

Senior Product Designer

Clients: VW, Bosch, Raiffeisen Bank

2018

2020

Freelance

Lead UX Designer

Clients: Zopa, Farfetch, Specsavers, LSE Cities

2013

2017

02

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Articles

How markdown, Claude, and Cursor turn transcripts into deployed software.

2026

Why the design-to-dev handoff is on its last legs

2026

Using AI to compress the feedback loop

2025

How design can automate good habits and align spending with what we value.

2019

Why the design-to-dev handoff is on its last legs

2018

+ 5 more essays

+ 5 more essays

+ 5 more essays

+ 5 more essays

+ 5 more essays

03

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Speaking

Design and AI

UX Camp Hamburg · UX Camp Berlin · Product Camp Berlin

2025

2026

Space as a Medium for Interaction Design

EuroIA Stockholm · Interaction18 Lyon · Mobile UX London · IxDA Berlin · DesignLab Berlin · BPD Berlin

2017

2021

Personal Finance – A 50 Year Plan

UX Camp Europe Berlin · UX Vienna

2019

Designing Better Forms

UX Bristol · UX Cambridge · Mobile UX London · UX Camp Brighton · MUXL London

2015

2017

Futures of the City

Why the design-to-dev handoff is on its last legs

2014

2015

+ 5 more talks

+ 5 more talks

+ 5 more talks

+ 5 more talks

+ 5 more talks

04

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Rarely Asked Questions

Let's talk

Ready to discuss complex product challenges? Let's connect.

info@sjorstimmer.eu

Let's talk

Ready to discuss complex product challenges? Let's connect.

info@sjorstimmer.eu

Let's talk

Ready to discuss complex product challenges? Let's connect.

info@sjorstimmer.eu

Let's talk

Ready to discuss complex product challenges? Let's connect.

info@sjorstimmer.eu

Let's talk

Ready to discuss complex product challenges? Let's connect.

info@sjorstimmer.eu

Berlin, 2026

This is the end of the page, book a coffee call ☕, always happy to chat.

Berlin, 2026

This is the end of the page, book a coffee call ☕, always happy to chat.

Berlin, 2026

This is the end of the page, book a coffee call ☕, always happy to chat.

Berlin, 2026

This is the end of the page, book a coffee call ☕, always happy to chat.

Berlin, 2026

This is the end of the page, book a coffee call ☕, always happy to chat.