High-throughput payment and transaction systems

Payment and order infrastructure that stays correct under concurrency and load.

Payment code is unforgiving: a duplicate charge or a lost event is not a bug you get to ship a fix for next sprint. We build these systems with idempotency keys, event sourcing on Kafka and database-level correctness guarantees, and we instrument them so you can see what is happening in real time.

What you get

Idempotent transaction processing
Event-driven order and payment flows on Kafka
PCI-aligned encryption and secure data handling
Third-party payment provider integrations
Optimistic locking and partitioning for ACID correctness
OAuth2 and JWT throughout

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