Real-time fraud signals at 40ms p99

Case study

  • 40msp99 latency
  • Zero rip-and-replaceStack changes

Challenge

Streaming inference integrated into an existing payments stack — no rip and replace. The client needed a production system, not a proof of concept — with the reliability, monitoring, and audit trail that implies.

Scope

Discovery, architecture, build, and a monitored production rollout — delivered as an owned system the client runs themselves.

Process

We scoped the smallest end-to-end slice, shipped it behind metrics, then hardened and scaled — with human-in-the-loop review where correctness mattered.

Proof

Outcomes were measured against a pre-agreed baseline and tracked in production dashboards — the client owns the running system. The headline metrics are below.

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