I am a Berlin based
UX Architect & Designer
with 18 years of work experience.
I partner with startups and scale-ups to design digital products that convert, retain, and scale — combining 18 years of strategic UX with modern growth frameworks.
18+
Years of Experience
60+
Projects Delivered
37%
Website Design
63%
Mobile Design
Strategic Service Design
I develop holistic service strategies that seamlessly connect digital and physical touchpoints and create sustainable customer experiences.
UX Research & User Insights
Data-driven user research using qualitative and quantitative methods to make informed design decisions and minimize risks.
Design Thinking & Sprints
Moderated design sprints and workshops that bring together interdisciplinary teams to develop validated solutions in a short time.
UX/UI Design & Prototyping
From low-fidelity wireframes to high-fidelity prototypes – I design intuitive interfaces that delight users and achieve business goals.
Voice & Conversational UX
Specializing in voice user interfaces and conversational design for chatbots, voice assistants, and multimodal experiences.
Digital Product Development
End-to-end product development from idea to launch – agile, user-centric and with measurable impact.
Medium Blog
Peter Spiegel
Dec 25, 2025
Peter Spiegel
Dec 20, 2025
Brands & Clients
Volkswagen Group
Deutsche Bahn
ING Germany
Gieseke & Devrient
Deutsches Rotes Kreuz
Immoscout24
BMW
Native Instruments
Senatskanzlei Hamburg
DWS Investments
Deutsche Telekom