Who we are

We are a diverse team of scientists, developers and data people from academia and industry.

Martin Preusse

Kaiser & Preusse

PhD in computational biology, Neo4j expert, Founder of Kaiser & Preusse.

Working at German Center for Diabetes Research as IT-cook-general. In this project Tim is developing and coordinating the data import pipeline.

Dr. Alexander Jarasch

German Center for Diabetes Research

Bioinformatician, data head of data & knowledge management at German Center for Diabetes Research, working with graph technology. In this project he connects scientists from basic and clinical research with our Covid-19 knowledge graph.

Sebastian Müller


Working at yWorks on custom visualization solutions with yFiles. In this project, Sebastian is working on a prototype application for conveniently browsing the network of Covid19-related papers and publications.

Darko Križić


Founding member of PRODYNA. In his position as Chief Technical Officer, he constitutes the bridge from Software Development to highly available operation of critical applications to strategic management consultancy.

Dr. Juliane Zimmermann


PhD in Biophysics, Requirements Engineer and Test Specialist at Qnit. In this project, she supports in determining relevant use cases and mediating between developers and scientists.

Axel Morgner


Physicist, software developer and architect, founder and CEO of Structr. Graph enthusiast, Neo4j Ambassador. Helps with building the website covidgraph.org.

Thorsten Liebig


Thorsten is co-founder and CEO of derivo. The team behind derivo is facing the challenges of more and more complex data pools with a semantic management of graph data and new kinds of visualization methods.

Jean Villedieu


Jean is the co-founder and head of sales at Linkurious. He has worked with several Fortune 500 companies to help them find insights in complex connected data. Previously he worked in the consulting industry on R&D projects and in sales. Jean double-majored in both political science and competitive intelligence.

Stefan Armbruster


Stefan works for Neo4j since 2012 and has a 20+ years background as a developer and consultant. When not coding, is a volunteer firefighter at the local fire department, acting as team lead and instructor. He also enjoys cycling. He's all geek and loves technology, good food, red wines and always on the hunt for the perfect espresso.

Jamie is a seasoned IT Director who has worked in both the private and public sectors, spending seven years with the Human Tissue Authority where he set up national licensing and reporting platforms. Now working for a leading market research group and currently helping the CovidGraph Project with issue tracking and general documentation. He also actively supports The Aurora Project and The Clean Earth Trust charities.

Tom Zeppenfeldt


Tom Zeppenfeldt is member of the Graphileon team. Graphileon provides tools to facilitate working with graph databases, including data management and visualization.

Davide Mottin

Aarhus University

Davide Mottin is an Assistant Professor at Aarhus University. His research focuses on graph exploration, which lays on the broad areas of database, data mining, and machine learning. His methods apply to the retrieval of relevant statistics from the knowledge graph.

Alexander Malić

360° agile data engineering (Strategy, Architecture, Infrastructure, and Methods)

Kirsten Langendorf


Works for S-cubed since 2017 and has a 20+ years experience in the pharmaceutical industry using her math and computer science skills. At S-cubed she is part of the team writing requirements, designing and testing the A3 Suite which is a graph-based tool to manage metadata for clinical trials. Helps covidgraph to extend the graph with data from clinical trials.