Payments are the one part of your product where a bug costs money directly, yours or your customers'. Billing edge cases, silent webhook failures and mishandled card data are exactly the kind of quiet problems that surface at the worst time. I build payment systems that get the boring details right.
I have owned Stripe subscription and billing flows on production products, including the plan logic where a company covers usage for its staff. Payments are a place where experience pays for itself immediately.
Subscriptions and billing, done fully
Stripe handles the hard parts of billing, but wiring it to your product correctly is where the work is: what happens on upgrade, downgrade, trial expiry, failed payment and cancellation. I map every billing state to your product so customers are charged correctly and access matches what they paid for, with no awkward gaps.
Secure by construction
Stripe-hosted payment collection can keep card details away from application servers. PCI responsibilities still depend on the integration and business; using Stripe does not remove them automatically. See Stripe’s PCI guidance. Your backend verifies webhooks, enforces amounts server-side and logs every money event. Security here is not a feature you add, it is how the flow is built.
Webhooks that do not drift
The most common payment bug is a product and a billing system that silently disagree because a webhook was missed or mishandled. I build reliable webhook handling with idempotency and retries, so a completed payment always results in the right state in your app, every time.
The integrations your product depends on
Beyond payments, products live on third-party APIs: email, storage, maps, analytics, CRMs, whatever your product needs. I integrate them cleanly, with the retry logic, error handling and rate-limit respect that real integrations require, so an outage in someone else's service does not take down yours.
Who this is for
Products adding payments or subscriptions, teams whose billing has quietly broken, and anyone who needs an external API integrated by someone who will handle the failure cases instead of just the happy path.
