ProfilePicture
Karl Martin

UX Technologist

Showroom

Try out and see some of my work. Here you find a mix of visual explorations, OSS-Projects or other random ideas I created in the last few years.

Satellites

3D visualization of all plublicly documented satellites that orbit earth at this moment. Data provided by NORAD.

Orbit Sandbox

A colorful simulation to explore mass, momentum, and gravity. Swipe or drag to create objects and watch them interact with the central star.

Cube Puzzle

Recreating the famous cube puzzle hardly anyone can solve. I wanted it to have a realistic look and feel and straight forward contolls.

Shop-App Tempate

Flutter Template for a Shop-App - including a functional backend with REST-API. Code is available on GitHub.

Visit

I do...

User Experience Design
User Experience Design (UXD) focuses on creating applications that are intuitive, efficient, and enjoyable to use. I connect user needs with technical implementation by turning goals and workflows into clear interfaces, consistent interactions, and predictable system behavior. From a programming perspective, UXD is not only about visuals - it also includes performance, responsiveness, accessibility, error handling, and feedback. By designing and building with the user in mind, I help reduce friction, improve usability, and create software that feels reliable and easy to navigate.

Usability
Design Thinking
User Focussed
Project Management

The backbone of successful projects is strong teamwork at every stage of the process. As a Product Owner, I translate research and stakeholder input into clear requirements, prioritize the backlog, and define product goals and a structured roadmap. Good communication skills and a healthy level of empathy are key to building an efficient team that shares common goals.

As a Scrum Master, I organize team meetings, remove blockers, and support the team in working efficiently and collaboratively. In my view, the conventional Scrum process has its flaws and doesn't apply equally well to every team. I have never hesitated to adapt the workflow by introducing my own ideas and adjustments - an approach that has proven successful in past projects.

Product Owner
Scrum Master
Frontend & Mobile Development

Growing up in the 90s meant grwoing up side-by-side with the internet and all the technologies that came along with it. I disovered in various IT classes early on that I have a passion for creating interfaces. Over the years I used plain HTML/CSS, Wordpress, FTP, Typo3 etc. to host websites for schoolclasses, clubs and hobbies. Always staying up to date with the latest libraries and frameworks enabled me to create increasingly good solutions.

Since the release of the first smartphones, a brand new need for user friendly interfaces emerged. Screens of all sized and formats needed to be considered. Responsive Layout and Cross Platform deployability became more and more relevant. For me that meant to focus on technologies that can deploy interfaces across all common device types like Flutter, Electron and React.

Cross Platform
Responsive Layout
Unity Development

During my university studies, I worked with Unity to build interactive prototypes and simulations, turning abstract ideas into hands-on, testable experiences. This is where I developed a strong mindset for rapid iteration and user-focused design.

I brought this experience into my first professional role, where I worked on prototypes for automotive user interfaces. Using Unity, I created and tested HMI concepts early on, helping connect design ideas with technical implementation and real-world automotive use cases.

Alongside this, I worked on mixed reality projects, developing VR and AR experiences for devices like Microsoft HoloLens and Magic Leap. These projects focused on spatial interaction, immersive interfaces, and real-time simulations, allowing me to explore how users interact with digital content beyond traditional screens.

Automotive Interfaces
Mixed Reality
Realtime 3D
Data Visualization
Prototyping

Tools

Development Tools
Unity
Visual Studio / VS Code
Mixed Reality Toolkit
React
Flutter
Next.js
Figma
Framer
Programming
C# / .NET
ASP.NET
JavaScript
TypeScript
Dart
HTML / CSS
Platform Resumé
Windows
Universal Windows Platform
HoloLens 1, 2
Magic Leap 2
Android
iOS
Android VR
Web
Creative Tools
Cinema 4D
Blender
Adobe Photoshop
Adobe Illustrator
Adobe Premiere
Adobe After Effects
Office 365
DevOps
Git
Azure DevOps
SCRUM / Secure SCRUM
Kubernetes
Docker
Fluent Languages

🇩🇪 German
🇬🇧 English

Get in Touch

Have a question or want to collaborate? Feel free to reach out!

github.com/KarlSupertramp
linkedin.com/in/karl-martin-b95981183
KarlUweMartin@gmail.com