Modernising Wholesale Banking for a Tier-1 Global bank: building a composable, event-driven banking with eMACH.ai

Transformation Overview

A Tier-1 global bank headquartered in the UK executed a strategic modernization of its wholesale banking franchise to strengthen transaction banking foundations and enable repeatable, multi-market execution. By implementing the eMACH.ai Core Banking platform, the Bank moved toward a composable, event-driven architecture to meet evolving market demands for real-time payments and global liquidity.

Despite the complexities of operating in a high-volume, high-control environment, success was ensured through an integrated “bank-in-a-box” approach—delivering DDA, lending, payments, and liquidity capabilities as a cohesive stack. This transformation replaced fragmented systems with a cloud-native platform, allowing the Bank to streamline operations and reduce integration lead times for subsequent global rollouts.

Business Impact

  • Massive Throughput: Engineered to support wholesale volumes of approximately 35 million payments per month
  • High-Capacity Servicing: Built to accommodate 65,000+ active channel users with seamless digital servicing
  • Architectural Agility: Leverages a robust integration layer featuring 300+ APIs, 150+ microservices, and 200+ events
  • Global Scalability: Established a “One-time Integration” design, providing a foundation for rapid deployment across the Bank’s 40+ countries of presence
  • Operational Consolidation: Reduced platform fragmentation by unifying DDA, lending, payments, and liquidity into a single, cohesive governance framework

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Modernising Wholesale Banking for a Tier-1 Global bank: building a composable, event-driven banking with eMACH.ai