Payment Infrastructure Build

Client: Subscription box startup (anonymized) Timeline: 5 weeks Role: Backend and Stripe integration

Challenge

Needed payment system to process subscriptions, manage billing, handle payment failures for recurring revenue model.

Solution

Built complete payment infrastructure with subscription management, dunning logic, customer portal. Stripe subscription API, automated payment retry, email notifications, customer self-service portal.

Technical scope

Stripe Node.js PostgreSQL SendGrid

Constraint: 99% payment success target; minimal manual intervention for failed payments.

Stripe subscription API integration
Automated payment retry logic
Dunning management for failed payments
Customer self-service portal

Visual evidence

Payment infrastructure — representative UI (dummy data)

Desktop — admin / billing view (representative UI)

Outcome

$50k MRR

99% Payment Success

Minimal Manual Intervention

Processing $50k monthly recurring revenue, 99% payment success rate, minimal manual intervention required.

My role

Backend and Stripe integration: subscription API, webhooks, dunning logic, customer portal, and email notifications. Delivered as part of a small team.

Client anonymized due to NDA; details modified to protect proprietary information. Screenshots show representative UI with dummy data. More technical depth available under NDA on request.