Kavya Gaur · Stripe Integration Architect

Stripe integrations
that don't break
when real-world
billing happens.

I'm Kavya — founder & Stripe billing architect for B2B SaaS. I build subscription systems, webhooks, and payment flows that prevent revenue leaks at scale.

Stripe integration architecture — interconnected billing systems
150+
Stripe Integrations
B2B SaaS
9+
Disputes Won
100% success
$1M+
Revenue Handled
Monthly
5000+
Platform Users
Marketplace
200+
Features Shipped
Full-stack

How Stripe integration normally works

A quick overview from Kavya — watch to see how billing flows, webhooks, and subscriptions fit together.

// the_pattern

Stripe works on day one. Then billing gets real.

Payments go through — but subscription state, webhooks, retries, upgrades, and cancellations quietly break. Revenue leaks compound. Here's what the data shows:

Access bugs — users lose features they paid for

Impact: Support tickets +40%

Failed renewals — subscriptions silently expire

Impact: Revenue leak ~8%

Webhook gaps — state drifts between Stripe and your app

Impact: Data inconsistency

Billing mismatches — invoices don't match actual usage

Impact: Customer churn risk

Upgrade chaos — proration logic breaks mid-cycle

Impact: Revenue miscalculation

Manual fixes — your team is patching billing in production

Impact: Engineering time waste

// process

How I Build Production-Ready Stripe Systems

A methodical, data-driven approach to billing architecture — designed for SaaS that scales.

01

Stripe Architecture First

Model subscription tiers, proration rules, invoicing, and lifecycle — before writing code. Stripe becomes the source of truth for all billing state.

Subscription modelingProration designInvoice lifecycleSource of truth mapping
02

Webhooks & State Sync

Secure, idempotent webhook handlers that reliably sync subscription state between Stripe and your database. No missed events.

Idempotent processingSignature verificationState synchronizationRetry recovery
03

Production Alignment

Test and live environments stay consistent. Edge cases — failed payments, expired cards, disputed charges — handled before they happen.

Environment parityEdge case coveragePayment retry logicDispute prevention
Production-ready Stripe system architecture
99.9%
Webhook Reliability
<200ms
Avg Response Time
0
Missed Events
// case_studies

Real results. Real data.

Every integration I build is measured by revenue recovered, failures prevented, and engineering time saved.

EdTech Marketplace·NextJS·NodeJS·Stripe

Bosscoder Academy

Led engineering delivery of a full-stack marketplace platform. Architected payment and subscription systems from the ground up, handling complex multi-party billing flows at scale.

5,000+
Active Students
~$1M
Monthly Revenue
200+
Features Shipped
99.8%
Payment Success Rate
  • Reduced payment failures by 60% with smart retry logic
  • Automated subscription lifecycle management for 5K+ users
  • Built multi-tier pricing with seamless upgrade/downgrade flows
  • Zero revenue leakage after Stripe architecture overhaul
Bosscoder Academy dashboard — analytics and billing
Subscription Billing Rescue·React·Node·Stripe Billing API

B2B SaaS Platform

Inherited a broken Stripe integration causing ~8% monthly revenue leakage. Rebuilt webhook handlers, subscription state management, and proration logic from scratch.

8%→0%
Revenue Leak Fixed
47
Webhook Events Handled
3x
Faster Dispute Resolution
9+
Disputes Won
  • Eliminated subscription state drift with idempotent webhooks
  • Won 9+ Stripe disputes with proper evidence automation
  • Reduced billing support tickets by 75%
  • Implemented automated dunning and smart retry sequences
B2B SaaS Platform — subscription and billing dashboard

Stripe integration components

Building blocks I use to deliver reliable billing: subscriptions, webhooks, and payment flows.

A

Bespoke Billing Engine

Subscription logic tailored to your product and pricing.

Read more
B

Webhook Pipeline

Idempotent, retried, and observable event handling.

Read more
C

Dunning & Recovery

Automated retries and customer communication.

Read more
D

Reporting & Analytics

Revenue metrics and reconciliation ready for finance.

Read more
E

Multi-tenant Billing

Isolated billing per tenant with clear boundaries.

Read more
F

Custom Checkout

Branded checkout that fits your product experience.

Read more

Questions I'll ask about your Stripe setup

So we can quickly identify where to focus and how to help.

Do you use a custom billing page?

Custom vs Stripe-hosted affects architecture, PCI scope, and how we handle upgrades.

How do you handle failed payments?

Dunning, retries, and communication flows are often the biggest revenue leak.

Do you prorate on plan changes?

Proration and credit logic need to be consistent and auditable.

What's your webhook and idempotency strategy?

Duplicate or missed events can cause double charges or missed renewals.

Let's fix your Stripe integration.

Book a 30-minute architecture call with Kavya. Share your current Stripe setup, billing challenges, or integration plans — and get a clear technical assessment.

Book a Stripe Architecture Call