The problem
StripeFlow — Enterprise Payment Platform
Enterprise teams need payment infrastructure that doesn't fail at scale — most hobby implementations collapse under load, lack observability, or can't handle subscriptions alongside one-off charges. I designed and shipped a full-stack payment platform from scratch: REST API backend, real-time webhook delivery with retry logic, recurring billing, multi-currency support, and a live analytics dashboard.
→ 1,500+ transactions/sec at peak · 45 ms avg response · 99.9% uptime · 95%+ test coverage