Service · 24

Fintech & Payments Systems

Stripe billing, subscriptions, paywalls and payout flows — built reliable, webhook-safe and compliance-aware.

How it's built

(1) Money map — every flow from charge to payout, edge cases listed. (2) Architecture — Stripe object design with an idempotency plan. (3) Build — billing, paywalls, webhook-safe handlers. (4) Compliance pass — PCI scope, SCA, dunning, refunds. (5) Go-live — reconciliation reports, alerting on money paths.

Core fundamentals

idempotent webhooks (double-charges are unacceptable)
every money path alerted
dunning and refunds designed, not improvised
books reconcile to the cent

Build blueprint

Deliverables

billing system
webhook infrastructure
reconciliation reports
compliance notes

Stack

StripeRevenueCatWebhooksLedgers