SaaS

NovaPay

Multi-currency subscription billing engine

The Challenge

SaaS companies expanding internationally needed a billing solution that handled multi-currency pricing, tax compliance, and flexible plan management without the complexity of enterprise billing platforms.

MVP Scope

Multi-currency pricing engine, automated invoicing with tax calculation, plan management (trials, upgrades, downgrades), dunning workflows, and revenue analytics dashboard.

Architecture Approach

Event-driven architecture with TypeScript services, Stripe as the payment processor, Redis for rate limiting and caching, and a webhook-driven reconciliation system for financial accuracy.

Tech Stack

TypeScript

AWS Lambda

Redis

Stripe

PostgreSQL

React

The Outcome

Processing $500K+ MRR across 15 client companies. 99.97% billing accuracy. Reduced churn by 18% through automated dunning and smart retry logic.

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