engineering
Engineering Case Studies
Long-form architecture write-ups from the TRAGenX engineering desk — how systems like these are designed at the depth we operate. Capability pieces, not client reports.
Architecting a High-Throughput ISO 20022 Payments Switch
A reference design for a payments switch that routes ISO 20022 messages across rails at scale, with idempotency, replay-safe state machines, and clean degradation under partner outages.
- ISO 20022
- Kafka
- PostgreSQL
- gRPC
- Idempotency keys
- Circuit breakers
- Event sourcing
- Protocol adapters
Designing a Double-Entry Ledger Core for High-Volume Payments
A reference architecture for a double-entry ledger that stays balanced, auditable, and fast under sustained payment load — the invariants, data model, and scaling choices that matter.
- Double-entry accounting
- PostgreSQL
- Event sourcing
- Idempotency keys
- gRPC
- Kafka