Hi, I’m Sanne,

I help early-stage founders turn great ideas into products people love.

As your fractional product designer and design partner, I work side by side with you to find focus, learn fast, and build with confidence.

Together, we create real value for your users and your business.

Work I’ve done with founders

Together  – Product design & prototyping for couples coaching app

Together  – Product design & prototyping for couples coaching appTogether  – Product design & prototyping for couples coaching appTogether  – Product design & prototyping for couples coaching app
Together  – Product design & prototyping for couples coaching app

Cloom – Live group training with personal feedback from the comfort of your home

Cloom – Live group training with personal feedback from the comfort of your home – Member experienceCloom – Live group training with personal feedback from the comfort of your home – Member experienceCloom – Live group training with personal feedback from the comfort of your home – Member experience
Cloom – Live group training with personal feedback from the comfort of your home – Member experience
Cloom – Live group training with personal feedback from the comfort of your home – Trainer experience

Mizu – Companion app for chronic kidney disease patients

Mizu – Companion app for chronic kidney disease patientsMizu – Companion app for chronic kidney disease patientsMizu – Companion app for chronic kidney disease patients
Mizu – Companion app for chronic kidney disease patients
Mizu – Companion app for chronic kidney disease patients – Landing page for healthcare professionals
Mizu – Companion app for chronic kidney disease patients – Design system

Kidney+ – Branding for telecare offering for early-stage chronic kidney disease patients

Kidney+ – Branding for telecare offering for early-stage chronic kidney disease patients – Landing pageKidney+ – Branding for telecare offering for early-stage chronic kidney disease patients – Landing pageKidney+ – Branding for telecare offering for early-stage chronic kidney disease patients – Landing page
Kidney+ – Branding for telecare offering for early-stage chronic kidney disease patients – Landing page
Kidney+ – Branding for telecare offering for early-stage chronic kidney disease patientsKidney+ – Branding for telecare offering for early-stage chronic kidney disease patientsKidney+ – Branding for telecare offering for early-stage chronic kidney disease patients
Kidney+ – Branding for telecare offering for early-stage chronic kidney disease patients – Leaflet

Monday.Rocks – AI assistant for team leadership

Monday.Rocks – AI assistant for team leadershipMonday.Rocks – AI assistant for team leadershipMonday.Rocks – AI assistant for team leadership
Monday.Rocks – AI assistant for team leadership
Monday.Rocks – AI assistant for team leadership – Landing page
Monday.Rocks – AI assistant for team leadership – Admin

Four ways I can support your startup

Everything I do is about making the abstract concrete and staying focused on clarity so we can deliver outcomes fast. AI helps sharpen the work. Insight, judgment, and taste are always human.

Here is how I help, whether you are starting from zero or building on what already exists.

1

Product discovery

I help you uncover which problem is worth solving, for whom, and which direction has the most potential.

By sketching, prototyping, and validating early, we use design to find clarity fast, so you can make confident decisions about what to build next.

2

Product design

I design digital products that connect user needs with business goals. I create screens, flows, and prototypes that turn ideas into reality.

Using best practices and a lightweight design system, we move fast while keeping quality high, building features and products ready to validate in the real world.

3

Branding and storytelling

I shape how your product is presented to the world. Together we craft a clear story and a pragmatic brand that comes to life on your landing page and in your pitch deck.

This creates a cohesive identity that drives conversion and builds trust with customers, investors, and future hires.

4

Design leadership

I help you build a design practice that scales without slowing down. I hire and coach designers, guide their work, and set up simple routines so quality stays high.

I am your sparring partner on strategic and design decisions, giving your team the clarity they need and helping you make more confident decisions.

What clients say about me

Sanne always tries to get us the most value out of the available time and budget. The result is always on point! He quickly understands the challenges we are facing, and the designed solutions take the bigger picture and possible next steps into account. Since working with Sanne, support questions around our interface were cut in half, and time and costs for validating new product ideas lowered. Our collaboration over the last four years has been very uncomplicated, trusting, pleasant, and productive. I definitely recommend working with Sanne!”

Photo of Luisa Bunzel
Luisa Bunzel
Co-Founder & CPO – Monday.Rocks

Sanne joined us, when I as a founder was still trying to self-teach myself design and creating screens for the first version of our product. He brought exactly the level of drive, seniority, and deep design expertise needed to create a scalable system and product vision. I don’t think that I exaggerate if I say he is the Design Lead you dream of as an entrepreneur. In retrospect, I only wish we could have found and involved him even a bit earlier.”

Photo of Dominik Bundschuh
Dominik Bundschuh
Co-Founder – Carealytix Digital Health

I worked with Sanne to design the process for digitalizing and processing hotel invoices. He quickly grasped the requirements and brought in useful analogies from other industries to solve our challenges. Sanne worked fast and delivered high-quality results within a short timeframe. Our collaboration was smooth, he was very independent, goal-oriented, and always focused on deliverables. It was a great experience, and I can’t wait for our next project to start!”

  • His deep experience as a product designer and user experience specialist.
  • His understanding and adaptability to a startup's (sometimes slightly chaotic) processes and unique setups.
  • His no-bullshit-and-always-respectfully-telling-you-the-truth way of working together.

Don't think twice about it if he has the availability to work with you.”

Photo of Nils Chudy
Nils Chudy
Chief of Staff to CTO – Lanes & Planes

The beauty of working with Sanne is a combination of three things. First his deep experience as a product designer and user experience specialist. Second, his understanding and adaptability to a startup’s (sometimes slightly chaotic) processes and unique setups. Lastly, his no-bullshit-and-always-respectfully-telling-you-the-truth way of working together. So don’t think twice about it if he has the availability to work with you.”

  • His deep experience as a product designer and user experience specialist.
  • His understanding and adaptability to a startup's (sometimes slightly chaotic) processes and unique setups.
  • His no-bullshit-and-always-respectfully-telling-you-the-truth way of working together.

Don't think twice about it if he has the availability to work with you.”

Photo of Till Grusche
Till Grusche
Co-Founder & Co-CEO – House of Beautiful Business

We worked with Sanne from the first experiment all the way to the launch of our first MVP. He is conceptual and strategical strong but can also switch to hands-on design. This created flexibility and allowed us to move forward quickly. Sanne works fast, understands quickly, and is fun to work with. He created processes and structures that really helped clarify what to build next and made it possible to build up the initial design and development team quickly. Highly recommended!”

Photo of Tim Krengel
Tim Krengel
Co-Founder – Cloom, Investor

Sanne brings clarity, structure, and real impact. He cuts through the noise, makes things actionable, and drives results that actually matter. With him, design isn’t just about making things look good, it’s smart, user-focused, and built to perform. He moves fast, has a strong product sense, and always pushes for the best solution. I would absolutely recommend working with him. He’s a rare mix of creativity and strategy, making everything better: the work, the team, and the product.”

Photo of Frank Müller-Pierstorff
Frank Müller-Pierstorff
Co-founder & CPO – Together

Sanne supported us in developing a new company website and lead generation funnel. I would definitely recommend working with Sanne. His work was not only beautiful but also critical to bringing our website to the next level. He has optimized his approach to finding solutions to the overall business need, is keen to understand target customers' needs, and sees design as part of a holistic solution.”

  • His deep experience as a product designer and user experience specialist.
  • His understanding and adaptability to a startup's (sometimes slightly chaotic) processes and unique setups.
  • His no-bullshit-and-always-respectfully-telling-you-the-truth way of working together.

Don't think twice about it if he has the availability to work with you.”

Photo of Vanessa Westhoff
Vanessa Westhoff
VP of Growth –  Socialbee

Sanne usually immediately has an idea of how something can be realised, mainly supported by his web design experience. I especially like his pragmatic way of approaching things. His designs look good and consider usability and the customer's point of view. Furthermore, Sanne thinks about possible costs that may arise during programming. Working with Sanne is a lot of fun; his good mood and positive forward thinking are contagious. I can definitely recommend Sanne and would work with him again, which we already do.”

Photo of Kristin Winter
Kristin Winter
Senior Online Marketing Manager – MOIA

Nice to meet you

I’m Sanne Wijbenga, Dutch designer with 20 years of experience.

I love the early stage, when ideas start to take shape and every decision defines what the product can become. That’s where design makes the biggest difference, connecting direction with execution and turning thinking into something real.

I work best with founders who bring ambition and real domain insight and who care about building something meaningful.

As a design partner, I work side by side with founders and their teams, close to the product, combining strategy, design, and leadership to turn ideas into into products people love.

Based in Munich, I work with founders across Europe and the US.

Photo of Sanne WijbengaPhoto of Sanne Wijbenga

How we start working together

We work as partners. Open communication, quick check-ins, and visible progress from day one.

When needed, I’m supported by a small network of trusted specialists.

Two clear ways to begin

Chemistry project

See how we work together and get results fast.

Six to eight days shaped around one question: what would make the biggest difference right now?

No fixed scope, just a steady rhythm where we frame the challenge, make it tangible, learn what works, and decide what is next.

What you will get

Concrete design deliverables like flows and prototypes, extended by a lightweight design system

Shared clarity on what matters most

A short decision brief with clear next steps

Design partner

I work like a co-founder. Strategic when needed, always hands-on, and fast to start.

No equity, no added headcount, but someone who takes ownership and raises the bar.

I help you shape direction, design what matters, and make confident decisions as you grow.

What you will get

Design work across discovery, product, and brand

A trusted sparring partner who helps you think, decide, and move forward

Design leadership that fits your stage and speed

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Booking projects for December 2025 and beyond
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Booking projects for December 2025 and beyond
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