Published Apr 27, 2026
Fintech Payment Orchestration Layer
Mission-critical payment routing engine with 99.99% uptime. Aggregates 4+ gateways, real-time fraud detection, and millisecond failover.
Challenge: A payment intermediary suffered from vendor lock-in and inconsistent fallback behavior. Gateway outages caused transaction failures and regulatory reporting gaps.
Solution: ON DM built a cloud-agnostic orchestration layer with dynamic gateway selection, circuit breakers, and idempotent transaction logging. PhD-led governance ensured audit trails met financial compliance standards (PCI DSS, local regulations).
Key Results:
99.99% effective uptime over 12 months
Automatic failover in under 500ms
100% transaction idempotency – no duplicate or lost payments
40% reduction in gateway dependency costs
Tech Stack: Go · Temporal for workflow orchestration · Debezium for CDC · Multi-region PostgreSQL · Prometheus + Grafana
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