After graduating from British MA course, Hasegawa became a fintech and cryptomarket analyst at a startup that consisted of former financial institution’s employees. He joined bitbank in 2019 as market analyst.
He has contributed comments and articles for international and national financial media outlets such as Cointelegraph, CNBC, BARRON's, Wall Street Journal, ITmedia, Nikkei (one of the world's largest financial newspaper), and Jiji Press.