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I will fix stripe paddle billing integration subscriptions webhooks checkout api saas
Innocent Thames
About this gig
Payments breaking in your app? Checkout failing, subscriptions not unlocking access, webhooks never firing or customers getting charged twice?
I fix & build Stripe & Paddle billing for SaaS products, web apps & AI-built apps from Lovable, Base44 & Replit.
WHAT I CAN DO
- Stripe Checkout setup & payment flow fixes
- Paddle billing setup & migration between providers
- Subscriptions, recurring billing, upgrades & downgrades
- Webhook integration & failed webhook events
- Subscription access not unlocking after a successful payment
- Free trials, coupons, proration & refunds
- Stripe Connect & marketplace split payments
- Customer portal, invoices & billing emails
- SCA and 3D Secure compliance, failed & declined payments
- Test mode to live mode go-live checks
- REST & third-party API integration
- Google Cloud Run deployment for your billing backend
- AI app hardening: exposed API keys & insecure endpoints
WHY WORK WITH ME
- Clean, maintainable code you can build on
- Root-cause fixes, not patches over a broken flow
- Every payment flow tested end to end
Message me before ordering with your site or app link & what's failing. I will review it & tell you exactly which package fits.
Get to know Innocent Thames
Innocent Thames
Vibe Code Fixer and Full Stack Developer, Lovable, Base44, Replit
- FromUnited Kingdom
- Member sinceAug 2026
- Avg. response time1 hour
Languages
English, French, Spanish, German, Italian
Vibe coder. Full-stack developer. I fix, finish and ship AI-built apps that broke after leaving the builder.
I combine Lovable, Base44, Replit, Bolt, v0, Cursor and Claude Code with real engineering in React, Next.js, Node.js, TypeScript, Supabase, PostgreSQL, Firebase, Stripe, Docker, Vercel, Netlify, Cloudflare and AWS.
Deployment failures, Supabase auth loops, white screens, exposed API keys, broken Stripe checkout, unfinished MVPs, migrations off Lovable Cloud. That's the work.
Most AI builders get you to 70%. I deliver the other 30%.
Send me your app link and what's breaking.
My Portfolio
FAQ
My webhook fires but nothing updates in my database. Where do you look?
Usually one of four things: the endpoint isn't verifying the signature and Stripe is rejecting it, it's returning a non-2xx so Stripe keeps retrying, it's subscribed to the wrong events, or it's reading the wrong field off the event object. I check the event log first, replay the failed events, then
Do you handle idempotency and duplicate charges?
Yes. Duplicate charges normally come from a retried request with no idempotency key, or a webhook handler that isn't safe to run twice. I add idempotency keys on the create calls and make handlers check event IDs before applying changes.
Checkout works in test mode but breaks live. Why?
Test and live keys are separate, and so are webhook endpoints, price IDs, products and signing secrets. Going live usually breaks because the app still points at test price IDs, or the live webhook endpoint was never registered. I do a full go-live pass on keys, endpoints, price IDs and secrets.
My Supabase app lets users see paid features without paying. Can you fix it?
Yes. That's entitlements being checked in the frontend only. I store the subscription status server-side, enforce it with row level security policies in Supabase, and gate the API routes, so the check can't be bypassed from the browser.
Can my webhook endpoint run on Google Cloud Run?
Yes. Cloud Run works well for webhooks as long as the service allows unauthenticated requests on that route, the container reads the raw request body for signature verification, and the signing secret is set as an environment variable. I deploy it and verify live events end to end.
