About Us
Our Team

With over 20 years of experience in digital design, Tommy Haacke has built userdoo on the foundation of strategic, user-centered thinking.
Before founding the studio, he spent a decade as a freelance designer, working across industries with companies of all sizes - from startups to enterprise giants.

Petia is the backbone of userdoo’s operations, ensuring that everything behind the scenes runs seamlessly.
She manages the back office, coordinates partner relationships, and keeps our design operations efficient and well-structured.

Ezgi is a passionate designer focused on UX/UI and digital experiences, driven to make information accessible and user-friendly.
Accessibility, inclusivity, and user-focused interactions are the foundation of her designs.

Annika, currently a student in User Experience Design, brings fresh perspectives and innovative ideas to our team.
With a background in graphic design and a passion for web development, Annika blends creativity with technical expertise to craft user-centered solutions at userdoo.

Raphael is the go-to guy for all things design systems.
As a problem solver, he is constantly looking for new technologies to find effective solutions.
He is experienced in design systems, prototyping and creating amazing user journeys.

Furkan is a dedicated product designer with a clear mission: to create real value through user-centered design and data-driven decisions.
With a strong interest in exploring diverse industries and new technologies, he brings a hands-on approach to building products from the ground up to improve people’s lives.

Rémi Seeberg combines academic insight with practical experience as an expert in user experience design and innovation management.
He teaches 'Speculative Design' and brings his in-depth knowledge to our team to develop innovative and user-centered solutions that advance both the user experience and UserDoo's business goals.

Kerstin is a talented graphic designer known for her creativity and professionalism.
She has the ability to translate client requests into visually appealing and functional designs.
With her eye for detail, Kerstin ensures that the end result is both beautiful and user-friendly.

Balu, our "Tiny Man", plays the important role of feel-good manager in the office and is our mascot.
He always makes us smile and entertains guests with his office parkour skills.
userdoo Manifesto
1. People First, Always
Every interface begins with human needs. We design for real people—listening, learning, and iterating until their goals are met.
2. Collaboration Over Ego
Great design isn’t born in silos. We work together, share knowledge, and challenge each other to produce insights that matter.
3. Accessibility Is Non-Negotiable
Inclusive experiences shouldn’t be an afterthought. We build with universal access in mind, ensuring every user feels welcome and empowered.
4. Design as a Strategic Asset
Good design is more than visuals; it’s a business driver. We align user needs with organizational goals to create lasting impact.
5. Test, Learn, Iterate
We value experimentation and user feedback. Only through honest validation can we refine concepts into truly intuitive solutions.
6. Shared Vision, Multiple Perspectives
We sync regularly, combining diverse skills and backgrounds. This synergy fuels fresh ideas and consistent results.