Location Warsaw, Mazowieckie, Poland Regions European Union (EU), Europe, Middle East, and Africa (EMEA) Gender Male
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Marek Kirejczyk is a software engineer, entrepreneur, and dedicated contributor to open-source software (OSS). He has made significant contributions to the web3 community through the creation of two widely acclaimed open-source projects: Waffle and useDApp. Additionally, Marek has played a pivotal role in the success of two companies, El Passion
and Ethworks, which he co-founded and successfully guided to profitable exits. Currently on sabbatical, Marek is passionately immersing himself in the field of cryptography, with a specific focus on Zero Knowledge cryptography.

