Clear Thinking,

Decisive Design.

I make sophisticated technology feel obvious. 15+ years designing for scale-ups across fintech, automation, and visual programming taught me to think in systems, ship in pixels, and bring stakeholders along for the ride.

01

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Recent Impact

NodeScript

Led visual programming platform powering 300M monthly automations

Sumup

Designed first subscription infrastructure enabling revenue shift

Bendesk

Shipped pension platform serving 2,500 users across 15+ enterprises

Zopa

Designed loan flow processing £1B+ and increasing conversion

02

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Selected work

SumUp

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2020-2021

Tax compliance meets recurring revenue.

SumUp

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2020-2021

Tax compliance meets recurring revenue.

SumUp

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2020-2021

Tax compliance meets recurring revenue.

SumUp

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2020-2021

Tax compliance meets recurring revenue.

Fintech

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Regulation

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B2B

SumUp

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2020-2021

Tax compliance meets recurring revenue.

Fintech

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Regulation

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B2B

Bendesk

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2020-2021

Strategic frameworks, scalable systems, measurable impact.

Bendesk

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2020-2021

Strategic frameworks, scalable systems, measurable impact.

Bendesk

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2020-2021

Strategic frameworks, scalable systems, measurable impact.

Bendesk

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2020-2021

Strategic frameworks, scalable systems, measurable impact.

Strategy

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B2B

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0 to 1

Bendesk

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2020-2021

Strategic frameworks, scalable systems, measurable impact.

Strategy

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B2B

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0 to 1

NodeScript

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2023-2025

Visual programming perfected as AI changed everything.

NodeScript

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2023-2025

Visual programming perfected as AI changed everything.

NodeScript

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2023-2025

Visual programming perfected as AI changed everything.

NodeScript

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2023-2025

Visual programming perfected as AI changed everything.

AI/Automation

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B2B

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B2C

NodeScript

/

2023-2025

Visual programming perfected as AI changed everything.

AI/Automation

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B2B

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B2C

Ubio

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2025

AI generates. Humans verify. Scripts run at scale

Ubio

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2025

AI generates. Humans verify. Scripts run at scale

Ubio

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2025

AI generates. Humans verify. Scripts run at scale

Ubio

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2025

AI generates. Humans verify. Scripts run at scale

AI

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Automation

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B2B

Ubio

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2025

AI generates. Humans verify. Scripts run at scale

AI

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Automation

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B2B

03

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Approach

I help teams find clarity in the messy middle. Asking better questions, uncovering trade-offs, balancing systems thinking with the realities of shipping.

MAPPED COMPLEXITY

Complex products shouldn't feel complex. I find the mental models users already have and design interfaces that match. Even expert workflows can feel intuitive.

SCALABLE PATTERNS

Good foundations multiply your speed. Components, patterns, and rules that flex across contexts. The system does the heavy lifting, so you can focus on what's next.

SHARED UNDERSTANDING

Good design makes the invisible visible. I turn fuzzy requirements into concrete artefacts. Things engineers can build, PMs can scope, and founders can confidently bet on.

SHIPPED CRAFT

I care about the details and the deadline. Staying close to implementation, scoping for real constraints, iterating in production. Beautiful work that ships.

04

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Articles

2026

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WORKFLOW

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7 MIN READ

What if Figma files were temporary branches of the codebase, meant to be merged back? A workflow for when code is the source of truth

2020

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STRATEGY

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6 MIN READ

Our brains weren't designed for abstract financial planning. How design can automate good habits and align spending with what we actually value.

2019

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RESEARCH

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8 MIN READ

We arrange objects into little spatial programs to guide our actions. As computing moves beyond screens, we can reclaim our whole bodies as thinking tools.

2012

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ARCHITECTURE

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10 MIN READ

Koolhaas's greatest achievement isn't a building—it's a system that reliably generates ideas. What designers can steal from OMA's archive of models and relentless research.

05

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Kind Words

"We went through the entire process of exploring and defining the problem space, competitor research, creating prototypes, validating designs with users and seeing them go live. Strong sense of ownership, critical thinking and attention to detail."

— Steffen Jannsen

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Senior Product Manager at SumUp

Senior PM at SumUp

"You were able to understand the business and the processes in no time and even managed to tame them and make the best of the given information/situation."

— Philipp Freese

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CTO at Bendesk

"Deep knowledge of problem framing... expertly helped us create products that deal with a complex mixture of technology, legal, and user needs."

— Sharon Anne Kean

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CPO at Zopa

"Rigorous & focused... I didn't manage to get a single shaky supposition past him in the entire year we worked together!"

— Adam Tarry

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Product Owner at SpecSavers

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.