What does it take to build a fintech product that actually scales? According to Sergey Efremov from the London Stock Exchange Group (LSEG), it starts with getting the data right. In this interview from Stockholm Fintech Week, Sergey breaks down the three core problems fintech companies face today: data fragmentation, scalability challenges, and the pressure to stay aligned with risk governance and regulation from day one. As part of LSEG’s Data and Analytics division, Sergey works with fintechs and financial institutions that rely on trusted data to build applications, manage risk, and grow their businesses. He explains how LSEG brings together data, analytics, and infrastructure into one open ecosystem, accessible via API, cloud, FTP, and desktop, giving fintechs the freedom to build and scale without being locked into closed environments. He also shares why Stockholm punches above its weight in global innovation, and why events like Stockholm Fintech Week are moving the conversation from hype to real, pragmatic partnership.
