Work with me

Boost your product success

UX/UI Review

Improve product performance
—without hiring a designer.

How the UX/UI Review can help you

Your product’s performance could be better. You may suffer from proximity blindness and need an outside opinion. You need results fast and you don’t have the budget for hiring a designer or doing a whole UX Relaunch.

The UX / UI Review will show you the quick wins to implement with your team.

Boost performance

I identify weak points in your product’s UX and UI and recommend quick and sustainable solutions.

Act quickly

With insights from the UX/UI Review you can quickly eliminate critical conversion killers and usability problems.

Save time and money

By offering streamlined packages, I can deliver maximum results in a short time at a fixed price.

  • Stefanie’s UX/UI Review on our mobile app was a revelation for our ed-tech startup, not just a list of problems but a roadmap to improvement.

UX Refresh

Not just a new look
—a better product and results.

How the UX Refresh can help you

You want to relaunch a part of your product to improve user experience and business results. Maybe it’s your onboarding experience, checkout flow, or simply a landing page. You need a product designer to complement your team.

With the UX Refresh, I’ll make sure that we relaunch sustainably. Small effort — big results.

Achieve business goals

Understanding your business objectives and helping you reach them is my main priority.

Act sustainably

By designing inclusively and sustainably, I will help you increase impact and build for the long-term.

Get individual support

I will tailor my services to your needs, as small or large as your budget allows.

  • Working with Stefanie for our checkout flow was a game-changer. We’ve already started taking into account some of the actionable recommendations.

Frederik Menke, Plan International

You can find information on how your data is processed in my privacy policy.

Rapid Prototyping

Validate an idea with customers at speed.

How Prototyping can help you

You are a sustainable or impact startup and want to validate your product idea before building the whole thing. You’re looking for Product-Market-Fit or need to demonstrate ROI for investors to get the next funding.

Rapid Prototyping is one of the best ways to find out what you need to build before you build it.

Focus on the essence

I will help you define a minimal feature set to test for maximum impact in a short time.

Custom prototypes

From low fidelity wireframes to a polished UI or coded prototype: We’ll figure out what you need.

Test with real users

I can support you with user testing to validate your idea and create actionable insights for next steps.

Sounds Good?

Then let’s schedule a discovery call to discuss your project.

You can find information on how your data is processed in my privacy policy.

UX Research & Design

My UX design focus

I am available as a remote UX Designer on contract basis with a special focus on:

  • product & UX strategy
  • lean UX research
  • sustainable & inclusive product design

I work preferably with sustainable and impact-oriented startups, businesses, and NGOs on all kinds of digital products, from websites to apps to business software and can support you with a wide range of industry experience.

eCommerce • Mobility • Energy • Finance • Logistics

We are a fit if …

…you are a dynamic and impact-oriented organization based in the European Union and your working language is English or German.

… you understand that design is not just pretty pixels but a process to help you achieve business goals.

… you have an exciting project that needs a hands-on all-round designer with a strong product focus.

Is this you?

Then let’s schedule a discovery call to discuss your project.

You can find information on how your data is processed in my privacy policy.


Inspire action
—remote or onsite.

I believe that workshops are one of the best ways to kickstart your project and inspire action in your team: with a small dose of theory that you put into action right away. Of course tailored to your real-world issues, projects, and products.

The prices of my workshops vary depending on the topic, duration, number of participants and logistics. The shortest workshop I offer starts at 1,000 € (plus VAT).

Please get in touch to discuss your requirements.

Workshop Topics

Digital Sustainability and/or Accessibility for product teams or communities
(can be tailored for designers, developers, product people or mixed teams)

Design Sprints

Project kick-offs

Lean product discovery

Lean product development

Your topic …

  • Had a great workshop led by Stefanie. Now I’m eager to apply these insights to my projects and contribute to a more sustainable future.

Paula Carli, UX Designer & Strategist


Inspiring talks
—tailored for your event.

I’m passionate about inspiring your audience with talks about

  • Digital Sustainability
  • Inclusive Product Design
  • Lean Product Practices

My speaker fees start at 250€ (plus VAT) excluding travel expenses.

For non-profit events and local communities, I offer discounts and free talks upon request.

  • One of the most inspiring talks for me lately: Stefanie and her both context-giving and actionable points on software development and the sustainable development goals. Kudos and looking forward to hearing more.

Felix Handler, Consultant

Check my availability

Let’s discuss your project

Generally, I am available for freelance and contract work in Hamburg or remotely throughout the EU.

I’m excited to hear about your project and I’ll respond within 2 business days. You can also find me on LinkedIn or email me directly.

Or you can simply pick a spot on my calendar for a free call to discuss how I can support you best:

You can find information on how your data is processed in my privacy policy.

I use your data to answer your request. Further information can be found in my privacy policy(opens in a new tab).