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XentraSol — Where Innovation Meets Excellence
SaaS Subscription & Billing Infrastructure Platform — SaaS project by XentraSol
SaaSCustom Software DevelopmentCloud & DevOps

SaaS Subscription & Billing Infrastructure Platform

Metered, tiered, and enterprise billing that finance can trust

Billing infrastructure supporting usage-based pricing, enterprise contracts, dunning, and revenue reporting.

Overview

Project overview

Billing becomes the hardest part of a SaaS business the moment pricing gets flexible.

We built infrastructure that handles metered usage, proration, contracts, and revenue recognition without manual spreadsheets.

Industry
SaaS
Timeline
12–14 weeks
Services provided
Custom Software Development, Cloud & DevOps, Dedicated Teams & Staff Augmentation

Business challenge

Custom enterprise contracts and usage-based pricing were being invoiced manually, causing leakage and slow month-end close.

Solution delivered

  • Built a usage metering pipeline with idempotent event ingestion
  • Implemented plans, tiers, proration, and contract overrides
  • Automated dunning, retries, and failed payment recovery
  • Delivered revenue and MRR reporting for finance
Capabilities

Key features

Usage metering and rating
Tiered and contract pricing
Automated proration and upgrades
Dunning and recovery flows
Tax and invoicing support
MRR and revenue reporting

Technology stack

  • Node.js
  • TypeScript
  • PostgreSQL
  • Stripe
  • AWS

Deliverables

  • Billing services and APIs
  • Metering pipeline
  • Finance reporting
  • Migration from legacy billing
  • Operational runbooks
Business outcome

Month-end close moved from days of spreadsheet work to an automated process, with revenue leakage effectively eliminated.

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