Freelance software engineer · Munich

Dr.Michael Prummer

I build real-time 3D, XR and applied AI into production software, along with the web, mobile and cloud systems it runs on.

contact@michael-prummer.de

3D & XR
Unity · C# · AR & VR · point clouds · digital twins · sensor fusion
Applied AI
LLMs · agents · RAG · knowledge graphs · LangChain · Python
Web & mobile
TypeScript · Angular · Node.js · iOS · Swift · Objective-C · Android
Cloud
AWS · Docker · Terraform · CI/CD
PatentsFiled at the EPOPapersGoogle ScholarHistoryLinkedIn
01

Selected work

Applied AI for Enterprise Engineering

Postdoc Researcher · Applied AI

Applied AI for Enterprise Engineering

Researched and prototyped applied AI systems combining LLMs, knowledge graphs, and retrieval-augmented pipelines to tackle complex engineering challenges at enterprise scale.

Siemens

The Coldplay App

Senior Engineer · Freelancer · XR / Mobile

The Coldplay App

Engineered production XR features for the Music of the Spheres World Tour app — 1M+ downloads on iOS & Android, using Unity as a Library embedded in native mobile.

Coldplay / SAP (Hays)

3D Digital Twin Platform

Software Engineer · Freelancer · 3D / Cloud

3D Digital Twin Platform

Built the backend services, DevOps and cloud infrastructure for a WebXR digital twin platform for buildings, based on 3D point clouds.

Baro-Pfannenstein

Onion-Hash: 3D Perceptual Hashing

PhD Researcher · 3D / Applied Research

Onion-Hash: 3D Perceptual Hashing

Invented a rotation- and scale-resistant 3D hash for tamper-proof asset authentication — +25.6% detection over prior art.

Siemens / University of Passau

Exergames Platform

Founding Engineer · Med-Tech / XR

Exergames Platform

Co-founded a TUM-backed medtech startup; built real-time skeletal tracking and biofeedback pipelines clinically deployed at German Heart Center Munich and Schön Klinik.

UnternehmerTUM

02

Research & patents

My research focuses on 3D data and AI in industrial engineering. During my PhD with Siemens and the University of Passau, I worked on identifying and authenticating 3D assets, which led to Onion-Hash, a perceptual hash that holds up under rotation and scaling. I have also written on industrial metaverse architectures for smart manufacturing, and as a postdoc at Siemens I combined LLMs, knowledge graphs and retrieval-augmented generation for engineering work. Earlier, at the German Heart Center, I worked on multisensor diagnostics and exergames with biofeedback.

  1. Onion-Hash: A Compact and Robust 3D Perceptual Hash for Asset Authentication

    Computer-Aided Design Journal (CAD), Elsevier

  2. Three dimensional perceptual hash

    Siemens

  3. Method of providing one of multiple files having different file formats and each representing a same digital asset

    Siemens

  4. Industrial Metaverse for Smart Manufacturing: Ecosystem Architecture and Applications

    Future of Information and Communication Conference (FICC) 2025 · Lecture Notes in Networks and Systems (Springer)

  5. Exergames and Biofeedback

    German Heart Center and TUM

  6. Multisensor Platforms for Medical Diagnostics

    German Heart Center

03

Background

  1. PhD in Computer Science (summa cum laude)

    Distributed Information Systems · University of Passau

  2. Skydeck Batch 15

    Startup Accelerator · University of California, Berkeley

  3. Master of Science

    Media Informatics · Ludwig-Maximilians University, Munich

  4. Bachelor of Science

    Media Informatics · Ludwig-Maximilians University, Munich

04

Availability

Currently taking on freelance contracts, and open to senior engineering and tech-lead roles. Email reaches me fastest.

Engagement
Freelance contract, direct or through an agency
Also open to
Senior engineer · tech lead · applied R&D
Working from
Munich · remote across the EU, on-site where it helps
Languages
German · English

Worked with

  • Siemens
  • SAP
  • Daimler
  • Baro-Pfannenstein
  • SnipClip
  • droidcon
  • LMU Munich
  • German Startups Association
  • Puzl
  • UnternehmerTUM
  • Schön Klinik