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Vault Pay: Re-platforming a Card Issuer

From 8s checkout to 600ms in three months.

Built forVault Pay
  • −85%
    p95 latency
  • 99.99%
    Uptime
StackTypeScriptGoPostgreSQLKubernetes

The challenge

Challenge

Legacy systems and tight deadlines.

Our solution

Solution

Incremental rewrite behind feature flags.

Results

Results

Measured improvements across SLOs.