The fintech sector sits at the intersection of retail customers, policymakers, regulators and interoperable competitors and partners. This location forces it to seek solutions that can accommodate multiple programming languages, open standards, data engineering workflows and machine learning models to build, deploy, share and monetise applications. At one juncture, fintech start-ups could be collecting transaction data on apps built in their preferred languages and in popular databases, while, at another juncture, they could be porting this data to a regulator’s choice of development ecosystem or communicating with security architecture built on an entirely alien set of code.