Johannes R. - Student thesis supervision Adrian Bohnert; Blockchain and Smart Contracts

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Karlsruhe, Germany

Experience

Jan 2024 - Dec 2024

1 year

Mannheim, Germany

Student thesis supervision Adrian Bohnert; Blockchain and Smart Contracts

DHBW Mannheim

Development and implementation of a blockchain for teaching purposes.

Jan 2023 - Dec 2023

1 year

Mannheim, Germany

Student thesis supervision Cremer, Noel; Neumann, Valentin; Kaufmann, Niklas; Investigation of computer-assisted teaching in the

DHBW Mannheim

Use of LEAN for teaching mathematics.

Jan 2023 - Dec 2023

1 year

Stuttgart, Germany

Student thesis supervision LeaSoffel,LukasBenner; Mathematics programming

DHBW Stuttgart

Use of LEAN for teaching mathematics.

Jan 2023 - Dec 2023

1 year

Stuttgart, Germany

Student thesis supervision Tom Hofer; Development of a C++ engine with a real-time path tracer and a generator for procedural

DHBW Stuttgart

Development and implementation of a real-time path tracer in C++ and Vulkan.

Jan 2022 - Dec 2022

1 year

Mannheim, Germany

Bachelor thesis supervision Elisabeth Bürger; Setting up a cloud-based setup for automated, secure,

DHBW Mannheim

Development and implementation of a cloud platform on Kubernetes for automatic and reproducible evaluation of algorithms.

Jan 2022 - Dec 2022

1 year

Stuttgart, Germany

Supervision of Robin Grun's student thesis; E-music visualization using LEDs

DHBW Stuttgart

This work presents an approach to visually represent music using RGB LEDs

Mar 2021 - Aug 2021

6 months

Karlsruhe, Germany

Software Developer, Project Manager

KIT / City of Karlsruhe

Large data sets from Vulkan simulations are processed on a cluster and synced live with a VR client.
The user can interact with the visualization using a VR headset and controllers.
DASK
Unity
Virtual Reality
Big Data
AWS

Jan 2021 - Dec 2021

1 year

Karlsruhe, Germany

Supervision of Master's thesis Improvement of prediction models based on heterogeneous measuring network with extended

Institute for Automation and Applied Informatics (KIT)

In a research project with IAI at KIT, models and algorithms were developed and implemented that use a network of environmental sensors and machine learning to predict air quality.

Jul 2020 - Present

5 years 5 months

Managing Partner and Technical Director

Studio Fluffy UG, Company for Art and Applied Mathematics

Combination of scientific computing with generative design and UX.
Development of games and simulations.

Jul 2020 - Jun 2021

1 year

Software Developer, Project Manager (as part of the Federal computer game funding program)

Studio Fluffy UG

Development of a procedural racing game.
Unity
AWS gaming platform
Procedural geometry

Jan 2020 - Present

5 years 11 months

Mannheim, Germany

Lecturer in Applied Mathematics and Stochastics

DHBW Mannheim

Multidimensional integral and differential calculus.
Differential equations.
Stochastic processes and statistics.
Formalization in Lean and mathlib.
Software for numerical mathematics.

Jan 2020 - Dec 2021

2 years

Mannheim, Germany

Supervision of Elisabeth Bürger's term paper; Program==Proof

DHBW Mannheim

Use of Lean for software verification.

Jan 2020 - Dec 2020

1 year

Mannheim, Germany

Supervision of Johannes Kramp's bachelor's thesis; Provision and management of high-performance computing (HPC)

DHBW Mannheim

Improvement of the workflow for high-performance computing by integrating NoSQL databases.

Jan 2020 - Dec 2020

1 year

Mannheim, Germany

Supervision of Kilian Hradil's bachelor's thesis; Automated testing of audio signals to extend the Deuta test automation

DHBW Mannheim

Automation of testing the audio output of the company-specific multifunction terminal DATS using machine learning.

Jan 2020 - Dec 2020

1 year

Mannheim, Germany

Supervision of Mika Hammesfahr's bachelor's thesis; Creation of a simulation model for operations on stockyards as

DHBW Mannheim

Development and implementation of a simulation model for the ABB Ability Stockyard Management System.

Oct 2019 - Aug 2020

11 months

Karlsruhe, Germany

Data Scientist, Machine Learning, Research Project MathSee

Institute for Computational Statistics/Institute for Topology/KIT

Development of prediction models for environmental data based on LSTM recurrent neural networks and integration of topological methods (Rips complexes).
Evaluation of stochastic forecasts using divergences.
LSTM
Python
Rips complexes
RNN
Divergences
Stochastic processes
Time series
Machine learning

Jan 2019 - Dec 2020

2 years

Mannheim, Germany

Lecturer, Digital Image Processing and Image Recognition

DHBW Mannheim

Color spaces, filters, and convolutions.
Deep learning.

Jan 2019 - Dec 2019

1 year

Stuttgart, Germany

Supervision of student thesis Adrian Bohnert; concept for developing L-systems in Blender and Python

DHBW Stuttgart

Development and implementation of a 3D plant generator for Blender in Python.

Jan 2019 - Dec 2019

1 year

Stuttgart, Germany

Supervision of student thesis Victoria Käßmeyer; computer simulation

DHBW Stuttgart

Development and implementation of finite element simulations (FEM) in Python and FEniCS.

Jan 2018 - Dec 2018

1 year

Stuttgart, Germany

Supervision of student thesis Florian Schöck; Aaron Olszewski; solving constrained systems with the WFC algorithm and procedural

DHBW Stuttgart

Development and implementation of the Wave Function Collapse algorithm (WFC) in Python and Blender, which generates semi-random patterns based on given states and constraints.

May 2017 - Aug 2020

3 years 4 months

Karlsruhe, Germany

Research Associate

Institut für Pervasive Computing Systems / KIT

Stochastic algorithms and numerical methods on parallel computing systems.
Machine learning.
IoT and big data systems, especially software and hardware development for low-cost sensors in combination with Kappa architectures.
Data and potential analyses for medium-sized companies.
Supervision of bachelor's and master's theses.

Jan 2015 - Present

10 years 11 months

Stuttgart, Germany

Computer Graphics Lecturer

DHBW Stuttgart

Imaging techniques.
Ray tracing.
Shader programming and raster graphics.
CAD.
Generative models (GAN).

Jan 2014 - Present

11 years 11 months

Freelancer

Büro Zwei

Projects in scientific computing, computer graphics, and multimedia

Oct 2009 - Mar 2014

4 years 6 months

Karlsruhe, Germany

Research Associate

Institut für Algebra und Geometrie KIT

Member of the metric geometry working group, where current topics in geometry, topology, and geometric analysis are worked out and researched.
Conducting lectures.
Supervision of students and tutorial groups.

Simulation Algorithm Developer

Adidas

Duration: 6 months
Numerical simulation of the deformation behavior of a shoe sole.
Scientific computing
Finite elements
Fenics
Python, C++
Solid mechanics

Software Developer, Project Manager

Black Forest Voodoo

Duration: 4 months
Design and implementation of a React web app to digitize a booking process.
React

Software Developer

Chiharu Koda

Duration: 6 months
Design and implementation of an IoT application that measures distances with range sensors and sonifies the data using weather information.
Raspberry
Python
Supercollider
IoT
Embedded Systems

Algorithm Developer, Simulation

Crytek/Ex-Up

Duration: 8 months
Developed algorithms and implemented them in a 3D engine to simulate realistic vehicle physics.
The main challenge was finding a mathematical model that captures all desired effects and still runs in real time.
C++
Simulation
Vehicle Physics
CryEngine

Data Analysis of X-ray Sensors

Dentsply Sirona

Duration: 4 months
Analyzed X-ray sensor data for 2D and 3D reconstruction from cross-sectional images.
Python
NumPy
OpenCV
Image Processing
Matplotlib

Algorithm Developer, Computer Graphics

ESG Elektroniksystem- und Logistik-GmbH

Duration: 3 months
Visual inspection within a 3D geodata framework.
Shader Programming
TypeScript/JavaScript
Geodata

Simulation Algorithm Developer

Friedrich Lütze GmbH

Duration: 4 months
Thermodynamic simulation of heat distribution inside a control cabinet.
Scientific computing
Python
SciPy
Thermodynamics
Optimization
Numerical methods

3D Configurators and Assistive Systems for Orthopedic Medical Devices

Innomedic / Johnson & Johnson

Duration: 3 months
Development and implementation of 3D configurators in Unity.
Unity
C#

AI Assistive System for Orthopedic Medical Devices

Innomedic / Johnson & Johnson

Duration: 12 months
Assistive systems based on deep learning and computer vision to automate configuration processes within treatment software for bone implants.
Python
Deep learning
TensorFlow
Keras
Network architectures
Computer vision
Matplotlib

Data Analysis for Defect Detection

Karl Zeiss

Duration: 24 months
Interactive visualization and analysis of large datasets in semiconductor defect detection.
Development of a distributed software architecture and implementations on a Kubernetes cluster.
Python
Dask
NumPy
pandas
HTC
Big Data
Kubernetes
Docker
Data science
React
FastAPI
Defect detection
Distributed systems
Software design
System design

Software Developer

Lightshape

Duration: 4 months
Programming within the Holodeck framework. The Holodeck is made up of a camera-based tracking system that provides absolute position data and a VR headset. This setup allows users to move freely in a virtual reality and interact with it. For this system, the following Unity application was implemented: multiple users can log into the same scene and see each other's interactions and positions. They can use input devices to change car model features, such as color or rims.
C#
Unity
Tracking systems
Network programming

Web Developer

Lightshape

Duration: 12 months
Developed an HTML5 web app that provides a 360° panorama viewer moved by the motion sensors of a smartphone or tablet.
Implemented a Kalman filter for control, fusing the built-in compass and motion sensor.
The panorama is a 360° photo taken from the Stuttgart TV tower.
Placed interactive markers on the panorama that link to more information about buildings or locations.
Also developed an algorithm that marks locations in a latitude-longitude coordinate system (like Google Maps) on the image by calculating their corresponding pixel coordinates.
Javascript
HTML
Perspective transformations

Greifswald, Germany

Data Scientist, Algorithm Developer

MPI Greifswald/W7-X

Duration: 15 months
Integrated physical properties and differential equations into Gaussian process regression methods.
Predicted electric and magnetic fields based on measurement data.
Machine learning
Bayesian inference
Python
SciPy
JAX
Data science
Numerics
Differential equations
Maxwell's equations
Gaussian processes
Computer algebra

Software Developer

Pong.li

Duration: 12 months
Developed an app that recognizes special Maya glyphs embedded in the floor plan of the ancient Maya city Uxul.
Scanning the glyphs reveals objects and information.
In the kids' version, the user interacts with animated residents of Uxul and learns about Maya culture in a playful, visual way.
C#
Unity
AR

Software Developer and Interim CTO

R3DT

Duration: 6 months
Organized technical project management and implemented a software interface in Unity to integrate CAD data into virtual reality for a single-project contract.
Handled technical project management for individual client projects, including planning the development team's tasks.
Supervised a bachelor's thesis on creating a CAD data interface for virtual reality.
Supervised a bachelor's thesis on user experience design in virtual reality.
Supervised a master's thesis in the field of 3D data analysis.
Served as Scrum Master.
C#
Unity
C++
CAD
SLAM
Image recognition
Point Cloud Library
Scrum Master

Data Scientist, Algorithm Developer

Rolf-Benz

Duration: 4 months
Developed and applied machine learning techniques and algorithms to optimize the waste generated when cutting patterns from leather hides. Using historical data, established relationships between the most efficient combinations of hides and patterns. The required features were extracted from the CAD data of the templates and hide information.
Machine learning
Deep learning/RNN
Geometry processing
Python
TensorFlow
Optimization
Simulation

Data Scientist, Algorithm Developer

Sick AG

Duration: 6 months
Developed machine learning algorithms to optimize the switching behavior of inductive distance sensors.
Machine Learning
Signal Processing
Python
Scikit-Learn
Optimization
Embedded Systems

Industrial Image Recognition Systems

Sturm-Gruppe

Duration: 4 months
Developed image recognition algorithms and measurement systems to assess brake disc coatings from laser scan data.
Designed and implemented software architectures in C#.
Halcon
C#
WPF
Image Recognition
Software Design
System Design

Data Scientist, Algorithm Developer

Trumpf GmbH + Co. KG

Duration: 6 months
Used machine learning and simulation calculations to optimize the positioning of templates and the subsequent laser cutting of metal sheets.
Machine Learning
Deep Learning
Python
TensorFlow
Optimization
Simulation
Geometry Processing

CAD/CAM for Laser Cutting Machines

Trumpf SE + Co. KG

Duration: 15 months
Developed geometric algorithms and optimization methods within CAD/CAM software to plan cutting and welding paths for NC programmable machines.
Designed and implemented software architectures in C#.
C#
SpaceClaim/Parasolid
CAD
CAM
Computational Geometry
NC Machine Code

Karlsruhe, Germany

Fireflies Interactive Light Installation

Tänzervereinigung Dance Vision Durlach e. V.

Duration: 3 months
LED strips controlled by ESP32 are driven via MQTT by a Raspberry Pi over Wi-Fi and respond to room acoustics.
C
Embedded Systems
Computer Engineering
Creative Coding
ESP32
Linux
MQTT
Raspberry Pi

Software Developer

Viscopic

Duration: 3 months
Written report on WebAssembly technology.
Comparisons between WebGL combined with WebAssembly and WebAssembly with integrated OpenGL.
Prototype implementations and quantitative comparisons.
C++
WebAssembly
OpenGL
JavaScript
Unity

Data Analysis and Statistical Learning Methods

Voith

Duration: 6 months
Development and implementation of Gaussian process regression methods based on variograms.
Development and implementation of a platform-independent software architecture in C++ and CMake.
C++
Data science
Statistical learning methods
HPC
CMake
Software architecture

Web Developer

Wetter.com

Duration: 4 months
Development of shaders and shader pipelines within a tile map framework for the visualization and animation of time-dependent vector fields, such as cloud data.
JavaScript
WebGL

Karlsruhe, Germany

Web Developer

ZKM, Institut für Bildmedien

Duration: 3 months
As part of the Motionpicture 2.0 project of the Institute for Image Media, a simulation of the ZKM panorama lab was developed in WebGL.
The application accepts a video and the corresponding motion data from an iPhone and rotates the video accordingly on a virtual 360-degree screen so that the recorded horizon stays stationary.
The user can switch between different views and adjust the viewing angle on the 360-degree screen.
JavaScript
Three.js
WebGL

Summary

Machine Learning/Deep Learning
Data Science/Data Visualization
Scientific Computing
Image Recognition/Image Processing
(Physical) Simulation
Optimization
Computer Graphics
Big Data
Mathematics and Stochastics
IoT and Embedded Systems
Digital Electronics
Human-Machine Interaction/UX
Mixed Reality/AR/VR
Formal Systems/Compilers
CAD-CAM/Algorithmic Geometry
Software Architecture/Systems Engineering

I am a mathematician and software engineer. I work on interdisciplinary topics in mathematics and computer science and have both solid theoretical knowledge and many years of practical experience in industry. I am passionate about technology and especially interested in a human-centered and creative approach to it. As a self-motivated developer, I continuously learn and teach myself new technologies to find creative solutions. My own small digital lab, my bookshelf with more than 300 technical books, ChatGPT, supervising theses, and teaching assignments help me with that. I work with a high level of responsibility and commitment and actively look for ways to improve processes and results.