Core Banking Systems Architecture Masterclass Guide
Core Banking Systems Architecture Masterclass Guide Answer-first: Modern cloud-native core banking transitions from batch-driven mainframes to composable distributed platforms: immutable double-entry ledgers enforcing mathematical zero-drift balance invariants, multi-region Distributed SQL guaranteeing serializable ACID transactions, event-sourced CQRS projections, orchestrated compensation Sagas, zero-allocation ISO 20022 streaming, and FAPI 2.0 security. This architecture eliminates end-of-day batch freezes, delivering sub-25ms P99 latency across active-active deployments. Prerequisite: Practical familiarity with distributed systems fundamentals, relational transaction isolation levels (ACID), event-driven microservice patterns, and enterprise networking (mTLS, TCP/IP, gRPC). For foundational context, explore our Banking Microservices Architecture and Go Microservices Guide. ...