Hey, I’m Mathew
Revenue & Payments Engineer
Stop Losing Revenue You’ve Already Earned.
I help SaaS, subscription, and ecommerce businesses find and fix revenue leaks across payments, billing, fraud, tax, and customer lifecycle systems.
Failed payments. Involuntary churn. Fraud rules. Tax configuration. Broken webhooks. Poor customer recovery. I connect the pieces, find what’s costing you money, and fix the underlying system.
Payments
Customer & Marketing
Commerce & Engineering
Certifications
A payment can fail. A subscription can silently churn. A fraud rule can reject a good customer. A webhook can leave systems out of sync. A tax configuration can create unnecessary risk.
I find the problems, quantify the opportunity, and help you fix the system.
What I do
Stripe billing infrastructure, webhook architecture, and dunning systems that keep SaaS revenue from leaking.
Revenue Recovery
Identify and recover revenue lost to failed payments, expired cards, and involuntary churn. Smart dunning strategies that recover 40-60% of failed payments.
Webhook & Stripe Architecture
Idempotent webhook handling that eliminates race conditions, duplicate charges, and broken subscription states. Smart retries, event ordering, customer portal setup, and revenue recognition done right from day one.
Integration Architecture
Connect Stripe to Klaviyo for payment-triggered email flows. Bridge GHL and Stripe for unified pipeline and payment visibility across your business.
Revenue Engineering
Build a unified data model that connects marketing spend, sales pipeline, and payment health. See your revenue as one system, not three silos.
Revenue is one system, not three.
Featured Articles
Latest from the blog
I Built a System to Stop Expiring Cards From Costing MRR
Every month, expiring credit cards quietly cancel subscriptions nobody meant to cancel. I built a system that catches this 30 days ahead of time, updates customers automatically through a three-email sequence, and stops itself the moment a card gets fixed. It runs on Stripe, Supabase, and Klaviyo, deployed on Vercel, code on GitHub
How to Build a Stripe Dunning Engine That Recovers Failed Payments (2026 Guide)
You built the product, found the customers, and set up Stripe — then someone's card expired. This is the field guide for building a dunning engine that actually recovers that revenue: webhooks, retry logic, state machines, the security holes people miss, and the emails that get opened instead of ignored.
Resources
Tools and checklists for smarter Stripe recovery.
Access audit frameworks, a decline-code decision tree, a revenue leakage calculator, and case studies built for payment teams.
I help SaaS founders recover up to 50-60% of their “failed payment” churn through technical Stripe & Klaviyo optimization.
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