Pay Bridge
A payment connector that makes retries boring.
- Year
- 2024
- Kind
- Integration
- Status
- Live
- Role
- Backend and integration lead
Context
Payment integrations fail in quiet ways: duplicated charges, lost webhooks and reports that disagree with the bank.
Approach
Every outgoing call carries an idempotency key, every incoming webhook goes through a durable queue, and a nightly job reconciles both sides.
Highlights
- Zero duplicated charges across the concept’s fault-injection runs
- Webhook processing survives provider outages through a durable queue
- Reconciliation report readable by non-engineers
- p95 checkout latency of 420 ms in the load test
Outcome
The connector became the reference design for the other fictional integrations in this portfolio.
Technologies
- Node.js
- TypeScript
- Stripe
- RabbitMQ
- PostgreSQL
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