Balázs Szegedy is a world-renowned expert on the mathematical theory that grew out of the Szemerédi Regularity Lemma, which describes the behavior of very large structures with mathematical tools. He is an ERC, Élvonal and Lendület grantee.

Balázs Szegedy graduated with MSc in mathatics at Eötvös Loránd University, Budapest, Hungary in 1998.  He received his PhD On the Sylow and Borel subgroups of classical groups at Eötvös Loránd University in Budapest, Hungary in 2003. His supervisor was Péter Pál Pálfy. After finishing his PhD in 2003, he held short term positions at Microsoft Research and the Institute for Advanced Study (USA). In 2006, he joined the University of Toronto (Canada) and he returned to Hungary in 2013. Currently he is leading a research group at the Alfréd Rényi Institute of Mathematics.

On DYNASNET, studies properties and invariants of physical networks, including new, physical analogues of the Erdos-Renyi and preferential attachment models. And works with Dávid Kunszenti-Kovács on various questions within graph limit theory.