Klaas works at Bruegel as a Research Analyst. He holds a Master in Economics from the KU Leuven and in European Economic Studies from the College of Europe. Additionally, he spent one semester at Uppsala University.

Klaas has a broad background in economics and European affairs. Before joining Bruegel he did a traineeship at the Permanent Representation of Belgium to the EU, where he worked on enlargement discussions, and at the European Securities and Markets Authority in Paris, where he contributed mainly to the work of the Risk Analysis and Economics department on such topics as crypto regulation and sustainable finance.

His fields of interest include European climate policy and Eurozone governance, as well as external relations and trade. He is fluent in Dutch and English and advanced in French and German.