Fintech & financial infrastructure
Digital Wallet & Banking Integration Architecture
A bank-connected wallet architecture designed around account validation, transaction orchestration, reconciliation, virtual-account flows, and controlled integration with external financial rails.
Engagement profile
- Role
- Technical architecture / engineering leadership
- Sector
- Fintech & financial infrastructure
Financial integrations fail when transaction state, reconciliation, customer identity, external responses, and operational support are treated as separate concerns.
Mandate
Design reliable transaction and top-up flows across external banking services.
Keep wallet balances and external transaction state reconcilable.
Reduce coupling between mobile experiences and banking integration logic.
Create operational visibility for failed, delayed, or partially completed transactions.
Approach
Centralised integration logic in the existing backend rather than duplicating banking behaviour in client applications.
Modelled transaction state explicitly from validation through settlement and wallet update.
Separated customer-facing account identifiers from internal orchestration and reconciliation controls.
Designed failure handling and support visibility as first-class parts of the transaction lifecycle.
Outcomes
A clearer integration boundary between banking rails, backend services, and mobile clients.
Better traceability for transaction validation, posting, and wallet updates.
A reusable foundation for additional channels and agent-facing experiences.
Reduced risk of embedding financial integration complexity in multiple front ends.