Across the banking industry, core platform modernisation has become a strategic priority rather than simply a technology upgrade. Legacy architectures are increasingly limiting data accessibility, interoperability, operational resilience, and the ability to support real-time, AI-enabled services. Yet replacing the banking core remains one of the most complex transformation programmes organisations undertake, requiring uninterrupted service, engineering at extreme scale, and close collaboration across an ecosystem of technology partners. 

Commonwealth Bank of Australia demonstrates how this can be achieved while strengthening resilience and establishing a platform for future innovation.