Dieter M.-Senior Product Designer & UX Specialist · Design Systems · AI
Check rate
Experience
Product Developer, Design Systems & UX
Miele
Product development for the Miele app – design system, UX, and end-to-end product responsibility.
- Built and expanded the design system – components, design tokens, dev handoff
- Created user flows and customer journeys for core app features (device control, recipes, maintenance)
- Usability testing and iterative UX improvements
- AI-powered personalization – smart program recommendations based on usage behavior
- AI tools in the design workflow: automated accessibility checks, Figma AI, rapid prototyping
- AI-synthesized user research – condensed interviews, feedback, and usability data into structured insights
Partner, Consulting
methusalab
Partner network for product and workflow systems: joint projects with greater capacity needs, consulting on product, UX, and AI topics in the DACH region.
AI Content Pipeline Architecture
Münchner Verlag
End-to-end AI content production system for a Munich-based publisher – replaced manual editorial workflows with a multi-agent pipeline using Claude Code, from research to editorial approval.
- Designed and implemented a multi-agent system: specialized agents with clearly separated roles
- Seven agents: Researcher · Editor · Fact Checker · Tone of Voice · Formatter · SEO/GEO · Editor-in-Chief
- Three editorial approvals within the workflow
- Each agent had its own context, fixed guidelines, and clear responsibility for its output
- Result: around 1 hour instead of 1–2 days per article, five times the output
- Personally responsible for strategy, architecture, prompt engineering, orchestration, and the quality loop
Design System Architect, UI Designer
hvv switch
Mobility-as-a-Service app (MaaS) – 1,000,000+ downloads, 4.5-star rating.
- Designed UX for multiple mobility services in one app, using real-time data
- Built a complete design system in Figma – from UX wireframes to production-ready components
- Implemented design tokens and handoff processes for the development team
- Designed new patterns and components to expand the design system
- Considered accessibility according to WCAG
Product Developer, UI Design & Team Lead
weed.de (Tortuga)
End-to-end product development for an information platform about medical cannabis.
- Designed the product within the legal requirements of a regulated market
- Responsible for research, competitor analysis, and project strategy; led the project
- Developed user flows, customer journeys, and a design system with tokens in Figma
- Took care of user testing, branding, and ongoing development
UI/UX & User Research Specialist
Signal Iduna
InsurTech app by Signal Iduna.
- Supported digital transformation in the regulated insurance sector
- Took on UI, UX, and user research for the mobile app
- Designed accessible, inclusive interfaces in close collaboration with the development teams
Design System Specialist & App UI Designer
Techniker Krankenkasse
TK app – digital healthcare management without paperwork for 5+ million app users.
- Designed design system components for a mobile app with millions of users in the regulated healthcare sector
- Followed GDPR and WCAG requirements: accessible and privacy-compliant
- Designed user flows and customer journeys, and implemented new features
UX/UI Designer
Deutsche Post DHL
UX for one of Europe’s largest logistics companies.
- Designed web UI and expanded the design system of a globally distributed platform
- Designed GDPR-compliant interfaces and created documentation and training materials
UI Designer & Design System Specialist
Axel Springer
News app with 5+ million downloads (Android & iOS).
- Helped shape the design system of one of Germany’s most downloaded news apps
- Worked on subscription UX, engagement metrics, and personalized content
- Optimized UI for conversion and reach, including BILDplus premium articles, Bundesliga highlights, and live tickers
UI/UX/UR Specialist for E-Commerce
TAKKT AG
- Conducted UX research and user testing to inform design decisions
- Created wireframes and prototypes using Figma for iterative design process
- Developed and maintained design system for consistent user experience
- Implemented frontend designs using HTML5, CSS, and JavaScript
- Collaborated in an Agile environment to deliver user-centered solutions
- Managed design elements for high-traffic website (500K+ monthly visitors)
- Ensured seamless user experience across multiple platforms and devices
- Utilized prototyping to validate design concepts before development
- Contributed to continuous improvement of user interface and interactions
UI Architect & Design System Specialist
BSH Hausgeräte GmbH (Bosch/Siemens/Neff)
- Developed a multi-brand design system and migrated it from Sketch to Figma; further developed e-commerce systems
- Introduced DesignOps and component governance for Bosch, Siemens and Neff
- Built tokens and a pattern library, conducted A/B tests and user research
Product Developer, UX Architect & Lead
Creative Dock
Product development for Vattenfall, Barmer, EWE, Berlin Hyp, Hannover Re and Deutscher Landwirtschaftsverlag.
- Vattenfall: ENPURE green energy app (100,000+ downloads) – mobile-first UX, design thinking, prototypes, data-driven work with Hotjar and Google Analytics
- Barmer: Designed the new app
- EWE: Designed fake-door tests for new product ideas
Product Owner – E-Commerce
MediaMarktSaturn
E-commerce and omnichannel platform of Europe's largest electronics retailer.
- Managed the backlog, aligned it with OKRs, optimized conversion
- Made product decisions based on data and A/B tests
- Built a pattern library for e-commerce
Frontend Lead
BMW AG (über Interone)
- Led the frontend team for the BMW website and the e-commerce platforms of BMW and MINI
- Implemented a pattern library, accessibility according to WCAG and responsive design
Developer & Frontend Track Lead
Audi AG (über Publicis Sapient)
- Managed 5 frontend developers, with responsibility for budget and resources
Product Developer & Team Lead
Jaeger-LeCoultre (Richemont, via Publicis Sapient)
Website relaunch with online shop for a renowned luxury watch brand.
- Led the relaunch of jaeger-lecoultre.com as Track Lead – brand-appropriate design in the luxury segment
- Led 6 developers in Munich and London and trained 11 developers in India
Manager Interactive Development
Henkel
- Omnichannel content strategy and CMS governance for 30+ brands in 40 countries
Senior Frontend Developer
Sky Deutschland GmbH
- Implemented responsive UI with HTML5/SASS
- Created web animations with After Effects
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Media and Entertainment, Healthcare, Manufacturing, Information Technology, Retail, and Professional Services.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Product Development, Information Technology, Marketing, Business Intelligence, Project Management, and Research and Development.
Summary
I have more than 14 years of hands-on experience in product development, UX/UI, design systems, and frontend, with a deep understanding of the entire product lifecycle – from concept and implementation to continuous improvement. I work especially well where structure and creativity meet: research, wireframes, prototypes, clear user interfaces, and scalable systems.
A large part of my work involves AI-powered products and workflow automation, from personalization features to multi-agent content pipelines. I like reducing manual effort, turning research findings into clear insights, and developing solutions that are practical, consistent, and truly useful.
Another key focus of my work is building and evolving design systems in Figma with design tokens, accessible patterns, and solid handoff to development. I have worked on apps, web platforms, and e-commerce products in healthcare, mobility, publishing, media, energy, logistics, and consumer goods, including projects for BMW, Audi, Miele, HVV Switch, and the TK-App with more than 5 million users.
Skills
- Design System
- Design Tokens
- Figma Specialist
- Ui Design
- Product Design
- Ux Design
- Accessibility (Wcag)
- User Research
- Usability Testing
- Wireframing
- Prototyping
- Information Architecture
- Mvp Design
- App Ui
- Web App Ux
- E-Commerce & Conversion Optimization
- Frontend (Html, Css, Javascript)
- Digital Experience
- Branding
Additional Skills:
- Figma
- Tokens Studio
- Storybook
- Sketch
- Adobe Experience Manager (Aem)
- Html
- Css
- Js
- Git
- Github
- Hotjar
- Google Analytics
- Confluence
- Jira
- Adobe Cs
- After Effects + Lottie
- Trello
- Asana
- Miro
- Figjam
- Midjourney
- Snappify
- Chatgpt
- Adobe Firefly
- Ai Systems Architecture
- Team Leadership
- Product Ownership
- Multi-Agent Systems (Claude Code)
- Ai Workflow Architecture
- Agent Orchestration & Prompting
- Ai Content Pipeline Development
- Human-Ai Workflow Integration
Languages
Education
MD.H Mediadesign Hochschule für Design und Informatik
Mediadesign
Studied Mediadesign, graduated in 2004.
Statistics
Experience
Global experience
Expertise
Frequently asked questions
Have questions? Find more information here.
Dieter is based in Bad Muskau, Germany and can operate in on-site, hybrid, and remote work models.
Dieter speaks the following languages: German (Native), English (Advanced), Romanian (Intermediate).
Dieter has at least 13 years of experience. During this time, Dieter has worked in at least 18 different roles and for 18 different companies. The average length of individual experience is 1 year and 9 months. Note that Dieter may not have shared all experience and actually has more experience.
Based on recent experience, Dieter would be well-suited for roles such as: Product Developer, Design Systems & UX, Partner, Consulting, AI Content Pipeline Architecture.
Dieter's most recent position is Product Developer, Design Systems & UX at Miele.
In recent years, Dieter has worked for Miele, methusalab, Münchner Verlag, hvv switch, and weed.de (Tortuga).
Dieter is most experienced in industries like Media and Entertainment, Healthcare, and Manufacturing. Dieter also has some experience in Information Technology, Retail, and Professional Services.
Dieter is most experienced in business areas like Product Development, Information Technology, and Marketing. Dieter also has some experience in Business Intelligence, Project Management, and Research and Development.
Dieter has recently worked in industries like Healthcare, Information Technology, and Media and Entertainment.
Dieter has recently worked in business areas like Product Development, Business Intelligence, and Marketing.
Dieter attended MD.H Mediadesign Hochschule für Design und Informatik for Mediadesign.
Dieter is immediately available full-time for suitable projects.
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Calculated based on our freelancers’ daily rates as of 7 Nov 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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