Daniel Mallman (FZJ): Daniel Mallmann (https://go.fzj.de/dm) studied Electrical Engineering (Computer Engineering) and received his diploma from the RWTH Aachen, Germany, in 1997. From 1997 till 2010, he was working as a research scientist at the Jülich Supercomputing Centre of the Research Centre Jülich in several German and European Grid projects and coordinated the project UniGrids, which focused on interoperability of Grid infrastructures and designed the Web Services based UNICORE federation software. 

His activities span several national and international federations like the German National Research Data Infrastructure, the Helmholtz Digital Services for Science, EUDAT, EUDAT2020, EOSC-hub and the US XSEDE project. 

From 2010 to 2023, he headed the division Federated Systems and Data of the Jülich Supercomputing Centre and from 2023 onwards co-leads the division Large-Scale Data science. Even though the management tasks occupy a large fraction of his time, his major (research) interest is the interoperability of services having feedback loops between design, implementation and usage.