The crypto market maker has to have an expert level understanding of how financial markets operate, of the crypto space, and has to be able to create algorithms that can meet those conditions. I’m not an expert on this subject but I’ve seen a few posts on here discussing the top crypto market makers and how they operate. In most cases, it's a team of people from various technical and financial disciplines working together to create a comprehensive algorithm that can meet the many scenarios it is required to meet to function efficiently.