Banking System Design
A system design case study for a banking platform covering accounts, ledgers, transactions, compliance, fraud controls, and reliability.
Banking System Design
This case study focuses on designing a reliable banking platform for accounts, money movement, transaction history, auditability, and compliance.
What This Article Covers
- Scope and interview expectations
- Functional and non-functional requirements
- Core services for accounts, customers, transactions, ledgers, limits, and notifications
- Data model choices for immutable ledger entries and account balances
- APIs for balance inquiry, transfer, transaction history, and dispute handling
- Idempotency, reconciliation, fraud checks, audit trails, and regulatory reporting
- Reliability, security, observability, and disaster recovery concerns
Learning Path
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