The first wave of AI was about proving what intelligence can do. The next challenge is putting it to work at scale. For financial institutions, AI must operate across fragmented systems, distributed operations, regulatory boundaries, and decades of technology investments. Success is no longer determined by models alone, but by the ability to operationalise intelligence while maintaining Scalability, Sustainability and Security. This keynote explores how leading financial institutions are moving beyond AI experimentation by building the engineering capabilities, operating foundations, and integration frameworks required to deploy intelligence across existing systems, processes, governance structures, and talent. The goal is not to rebuild the enterprise, but to unlock the value of AI at scale.