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A multi-tenant SaaS application that automates business invoicing and recurring subscription dunning.
Billio helps subscription-based businesses design billing plans, issue automated PDF invoices, and trigger retry workflows for failed payments.
Handling complex webhook failures and synchronization issues from multiple global payment endpoints without double-charging customers.
We engineered an idempotent billing pipeline in Next.js using Supabase postgres transactions and Stripe webhook handlers, securing all database logs with cell-level locks.
Idempotency Architecture • Stripe Webhook Configuration • Next.js Page Setup • Multi-tenant isolation review • Production Launch
Idempotent Stripe Billing Engine
Custom PDF Invoice Designer
Multi-tenant Database Partitioning
Usage-based Metering Console
Failed Payment Retry Scheduler
Processed $4.5M in invoice transactions during its beta phase, reducing billing integration workload for customers by 80%.
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