Modern Core Banking Integration in the UK: API-First Strategies for Legacy System Transformation
TL;DR: The UK banking system still runs largely on ageing COBOL-based cores, creating structural banking challenges around scalability, innovation speed, compliance reporting, and real-time digital experiences. Large-scale “rip-and-replace” projects have historically failed due to operational risk, runaway costs, and the complexity of migrating decades of transactional data. This blog explains how core banking integration UK








