Arnaud Wijnant has worked as a scientific programmer at CentERdata since 2008. He studied Computer Science at the Technical University Eindhoven. His graduate work in the area of queueing theory in Switzerland contributed to the construction of the LHC-particle collider at CERN in Geneva. After graduating, Arnaud worked in software engineering at a software company in Tilburg. He is currently working on a number of different projects at CentERdata. His current research expertise concerns the effect of the use of mobile devices in a web panel. He developed a special interface that makes it possible to fill out questionnaires easily on mobile devices. He has also authored various articles published on this subject.