Fabian Key studied Computational Engineering Science at RWTH Aachen University, Germany, and received his M.Sc. degree in 2016.

Afterwards, he began his PhD studies under supervision of Prof. Stefanie Elgeti and Prof. Marek Behr at the Chair for Computational Analysis of Technical Systems (CATS), RWTH Aachen University. In autumn 2019, he transferred to the group of Prof. Stefanie Elgeti at the Institute of Lightweight Design and Structural Biomechanics (ILSB), TU Wien, Austria. After receiving his doctoral degree in 2021, he continued his academic work as a post-doc at ILSB.

His research is in the field of application-specific numerical methods in a production engineering context. In particular, this includes numerical methods for deforming domain problems using space-time finite element methods as well as projection-based model order reduction techniques for parametrized problems, mainly in the context of fluid dynamics. The latter was initiated during a research stay of several months in the group of Prof. Gianluigi Rozza at SISSA, International School for Advanced Studies, Trieste, Italy.