Engineering Notes on Fintech Infrastructure
System design insights, architecture decisions, and backend patterns for payments and lending startups.
Wallet Systems
Double-entry ledgers, balance consistency, multi-currency wallets.
1 note
Payment Infrastructure
Orchestration, idempotency, webhooks, gateway abstraction.
4 notes
Settlement & Reconciliation
Matching, exception handling, batch reconciliation.
1 note
Event-Driven Systems
Kafka, event sourcing, topic structuring, consumer groups.
1 note
Lending Workflows
Loan lifecycle, decision engines, disbursement, repayment.
1 note
Scaling & Infrastructure
Database choices, service boundaries, scaling path.
2 notes