Stripe is powerful. It's also a maze of webhooks, subscription states, proration logic, and edge cases that can eat weeks of development time if you don't know the patterns.

I build production-grade Stripe integrations for SaaS products: subscriptions, usage-based billing, free trials, upgrade/downgrade flows, invoicing, and customer portal setup. Done right the first time so your billing doesn't break at 100 customers.

Subscription billing — monthly/annual plans, free trials, plan switching, proration, and cancellation flows

Usage-based billing — metered billing with Stripe's usage records API for pay-as-you-go models

Checkout & payment flows — Stripe Checkout, embedded payment forms, or custom checkout UI

Customer portal — self-service billing management (update card, view invoices, cancel/resume)

Webhook handling — reliable webhook processing for payment events, subscription changes, and failed payments

Dunning & recovery — automated failed payment retries, grace periods, and account suspension logic

Multi-currency & tax — Stripe Tax integration and multi-currency support for global SaaS

Stripe API, Stripe Checkout, Stripe Billing, Stripe Connect (for marketplace variants), Next.js, Node.js, PostgreSQL, Supabase, Prisma.

Audit your billing model — understand your pricing tiers, trial logic, and edge cases

Implement — build the integration with proper webhook handling, idempotency, and error recovery

Test — comprehensive testing across all subscription states (new, trial, active, past due, cancelled, resumed)

Ship — deploy with monitoring and documentation so your team can maintain it

SaaS founders adding paid plans for the first time

Teams whose current Stripe integration is held together with duct tape

Products migrating from simple payments to subscription billing