Dieter Möss - Product Developer for UX/UI and Design Systems

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Available

Windach, Germany

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Experience

Jan 2025 - Present

1 year 9 months

Product Developer, Design Systems & UX

Miele

Product development for the Miele app — design system, UX, and end-to-end product ownership.

Built and expanded the design system — components, design tokens, dev handoff
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
User research synthesized with AI — interviews, feedback, and usability data turned into structured insights

Jan 2025 - Present

1 year 9 months

Munich, Germany

AI Content Pipeline Architecture

Münchner Verlag

End-to-end AI content production system for a Munich publishing house — replaced manual editorial workflows with a multi-agent pipeline using Claude Code.

Designed and implemented a complete multi-agent system with role-based, specialized agents
Agents: Researcher · Image Editor · Editorial Management · Tone-of-Voice Manager · Chief Editor
Each agent with its own context, defined constraints, and clear output responsibility
Integrated into existing editorial workflows — content production time measurably reduced
System architecture: strategy, prompt engineering, agent orchestration, quality control loop

Jan 2023 - Dec 2023

1 year

Hamburg, Germany

Design System Architect, UI Designer

hvv switch

Developed Design System for HVV Switch app in Figma
Based on wireframes from UX team
Applied Atomic Design principle
Created design tokens
Conceived workflows for handing over designs to dev team
Conception of new patterns and components to expand Design System
Consideration of accessibility

Jan 2022 - Dec 2022

1 year

Hamburg, Germany

UI/UX/UR Specialist for App Development

Signal Iduna

Specialized in User Interface (UI), User Experience (UX), and User Research (UR) for mobile application development
Designed and implemented user-friendly and visually appealing interfaces
Conducted extensive user research to inform design decisions and improve user satisfaction
Collaborated closely with development teams to ensure seamless integration of design elements
Focused on creating inclusive and accessible experiences for all users

Jan 2022 - Dec 2022

1 year

Hamburg, Germany

App UI Designer, Design System Specialist

Techniker Krankenkasse

Developed components of a design system for a user-friendly mobile application that simplifies administrative tasks
Defined user flows and customer journeys
Reduced paperwork and saved time for over 5 million users
Implemented various features enabling convenient healthcare management via smartphone
Achieved high user adoption rates, demonstrating the app's effectiveness and value

Jan 2021 - Dec 2024

4 years

UI/UX Designer / Product Developer

weed.de

The website offers comprehensive information and services relating to medical cannabis in Germany.
Research and competitor analysis
Conception, project strategy and direction
User flows and customer journeys
Design System with design tokens in Figma
User tests and improvements
Branding and design

Jan 2021 - Dec 2021

1 year

Berlin, Germany

UI Designer, Design System Specialist

Axel Springer Verlag

Contributed to the design system of a highly successful news app with over 5 million downloads on Android and iOS
Optimized user interface for improved organic visibility and higher conversion rates
Designed features for timely news updates and comprehensive content delivery
Implemented UI solutions for exclusive content access (BILDplus articles)
Created engaging interfaces for sports content, including Bundesliga highlights and live ticker
Balanced user experience with monetization strategies through strategic ad placement
Addressed user feedback to continually enhance app functionality and features
Developed animations using After Effects and Lottie

Jan 2021 - Dec 2021

1 year

Newport, United States

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

Jan 2020 - Dec 2020

1 year

Munich, Germany

UI Architect / Design System Specialist / Frontend Developer

B/S/H/ Hausgeräte GmbH

Developed and implemented a new multi-brand design system
Migrated design system from Sketch to Figma
Created UI designs, design tokens, and pattern library
Conducted prototyping, user testing, and A/B testing
Performed external system analysis to inform design decisions
Provided design consulting services

Jan 2020 - Dec 2020

1 year

Berlin, Germany

UX Architect / Lead

Vattenfall

Applied design thinking methodology to test and refine business ideas for ENPURE, Vattenfall's eco-friendly energy service
Created interactive prototypes and wireframes using Sketch
Conducted user research and analyzed behavior using Hotjar and Google Analytics
Utilized various prototyping tools to rapidly iterate designs
Performed external system analysis to inform design decisions
Implemented user-centric design principles to enhance app functionality and user experience
Contributed to the success of ENPURE app, achieving over 5 million downloads
Optimized user interface for improved organic visibility and higher conversion rates

Jan 2018 - Dec 2018

1 year

Ingolstadt, Germany

Product Owner - Product Development for E-Commerce

MediaSaturn

Led the development and implementation of a pattern library for e-commerce platforms
Planned and managed user stories, prototyping, and user testing processes
Conducted A/B testing to optimize user experience and conversion rates
Developed detailed reports on user tests and performance metrics
Applied atomic design principles to create scalable and reusable components
Collaborated with design and development teams to ensure seamless integration
Utilized tools such as Sketch, Pattern Lab, Principle, and Zeplin for design and prototyping

Jan 2017 - Dec 2017

1 year

Munich, Germany

Frontend Lead

BMW AG

Spearheaded frontend development for BMW's global website
Managed and mentored a team of frontend developers
Created and maintained a comprehensive pattern library for consistent user experience
Implemented and oversaw user testing processes to optimize site performance
Utilized Test & Target for A/B testing and personalization strategies
Developed user stories and personas to guide design and development decisions
Conducted external system analysis to inform integration strategies and improve site architecture
Collaborated with UX/UI designers and backend teams to ensure seamless user experiences
Implemented best practices for web accessibility and responsive design
Utilized modern frontend technologies and frameworks to enhance site performance

Jan 2016 - Dec 2016

1 year

Ingolstadt, Germany

Developer & Frontend Track Lead

Audi AG

Led a team of 5 frontend developers for Audi's corporate website and motorsport division
Managed project setup for frontend and backend systems
Oversaw budget responsibilities and resource allocation
Conducted technical project management using Jira and Confluence
Developed frontend components and implemented responsive designs
Liaised with external design agencies to ensure cohesive user experiences
Performed external system analysis to optimize integration and performance

Jan 2014 - Dec 2014

1 year

Düsseldorf, Germany

Manager Interactive Development

Henkel

Contributed to the development of a centralized digital business platform for 30+ brands across 40 countries
Designed user interfaces for personalized customer experiences across multiple touchpoints
Implemented UI solutions for integrating content, marketing, and data in a unified brand communication system
Created user-friendly interfaces for e-commerce and digital marketing initiatives
Developed UI components for real-time, data-driven personalization using Adobe Experience Cloud
Designed interfaces for microservices integration and pattern library implementation
Conducted user testing to optimize interfaces for improved organic visibility and conversion rates
Utilized Adobe Experience Manager, Analytics, and Real-Time Customer Data Platform
Contributed to the successful launch of 300 web domains within two years
Applied design thinking to accelerate time-to-market for digital offerings

Jan 2014 - Dec 2014

1 year

Munich, Germany

Product Development, UI-Design, Team Lead

Jaeger-LeCoultre by Richemont

Led the relaunch of jaeger-lecoultre.com as Track Lead
Managed a team of 6 frontend developers across Munich and London
Oversaw frontend project setup and budget
Provided technical project management
Ramped up and guided 11 developers in India
Successfully delivered a high-profile website relaunch for a luxury watch brand
Implemented efficient workflows and best practices
Fostered collaboration between international development teams
Ensured project adherence to budget and timeline constraints

Jan 2012 - Dec 2012

1 year

Munich, Germany

Senior Frontend Developer

Sky Deutschland GmbH

Developed responsive and visually appealing user interfaces using HTML5 and SASS
Created dynamic web animations to enhance user engagement and site interactivity
Provided expert consulting services on frontend development best practices
Collaborated with design teams to implement pixel-perfect layouts
Utilized Adobe After Effects to create complex animations for web applications
Employed Photoshop for image editing and asset creation in web projects
Implemented interactive features and functionality using JavaScript

Industry experience

See where this freelancer has spent most of their professional time.

Experienced in Healthcare, Media and Entertainment, Manufacturing, Retail, Automotive, and Transportation.

Healthcare

Media and Entertainment

Manufacturing

Retail

Automotive

Transportation

Business area experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology, Product Development, Marketing, Business Intelligence, Quality Assurance, and Research and Development.

Information Technology

Product Development

Marketing

Business Intelligence

Quality Assurance

Research and Development

Summary

I have more than a decade of hands-on experience in product development, UX/UI, design systems, and frontend, and I have a deep understanding of the full product cycle — from concept and execution to continuous improvement. I work especially well where structure and creativity meet: research, wireframes, prototypes, clear interfaces, and scalable systems.

A big part of my work is AI-powered products and workflow automation, from personalization features to multi-agent content pipelines. I like reducing manual effort, turning research into clear insights, and building solutions that are practical, consistent, and truly useful.

Another focus of my work is building and growing design systems in Figma with design tokens, accessible patterns, and a 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 products used by more than 5 million users.

Skills

Design System
Design Tokens
Figma Specialist
Ui Design
Product Design
Wireframing
Ai Enthusiast
Mvp Design
App Ui
Web App Ux
Ux Design
Prototyping
Information Architecture
Branding
Research
Digital Experience
Coding
Graphic Design

Additional Skills:

Figma
Adobe Experience Manager (Aem)
Html
Css
Js
Git
Github
Confluence
Jira
Adobe Cs
Trello
Asana
Zoho Sprints
Miro
Figjam
Midjourney
Snappify
Chatgpt
Adobe Firefly
Neuronwriter
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
Sketch

Languages

German

Native

English

Advanced

Romanian

Advanced

Statistics

Experience

Total positions 16

Experience in Healthcare 4 y

Avg length 1 y 2 m

Longest experience 3 y 11 m

Global experience

Countries worked in 2 (Germany, United States)

Primary country Germany

Expertise

Recent roles Product Developer, Design Systems & UX, AI Content Pipeline Architecture, Design System Architect, UI Designer

Main industries Healthcare, Media and Entertainment, Manufacturing

Main business areas Information Technology, Product Development, Marketing

Profile

Member since

August 2025

Last update

September 2026

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Frequently asked questions

Have questions? Find more information here.

Dieter is based in Windach, Germany and can operate in on-site, hybrid, and remote work models.

Dieter speaks the following languages: German (Native), English (Advanced), Romanian (Advanced).

Dieter has at least 11 years of experience. During this time, Dieter has worked in at least 16 different roles and for 16 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, AI Content Pipeline Architecture, Design System Architect, UI Designer.

Dieter's most recent position is Product Developer, Design Systems & UX at Miele.

In recent years, Dieter has worked for Miele, Münchner Verlag, hvv switch, Signal Iduna, and Techniker Krankenkasse.

Dieter is most experienced in industries like Healthcare, Media and Entertainment, and Manufacturing. Dieter also has some experience in Automotive, Retail, and Transportation.

Dieter is most experienced in business areas like Product Development, Information Technology, and Marketing. Dieter also has some experience in Business Intelligence, Quality Assurance, and Research and Development.

Dieter has recently worked in industries like Healthcare, Media and Entertainment, and Manufacturing.

Dieter has recently worked in business areas like Product Development, Information Technology, and Business Intelligence.

Dieter is immediately available part-time for suitable projects.

Daily rate distribution

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<€800 €800-960 €960-1120 €1120-1280 €1440+

The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

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Daily rate avg. 885 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

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250

Median rate 840 €

The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.

Calculated based on our freelancers’ daily rates as of 7 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.