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Fiverr Pro
English
$
USD
I will integrate stripe or paddle billing into your existing app
Lawrence Gomes
About this gig
Worried about breaking your live checkout or losing revenue while adding subscriptions? I set up and fix Stripe and Paddle payments on production apps, not demos.
What You Get
- Stripe or Paddle checkout, subscriptions, and webhook integration
- Diagnosis and fix for a broken payment integration
- Secure key and webhook-secret handling, never exposed client-side
- Multi-gateway or Connect payouts, Premium tier
Tech Stack
- Next.js, React, TypeScript, Node.js
- Stripe and Paddle APIs, webhooks
- PostgreSQL for subscription state
- Stripe Tax or Paddle's Merchant of Record
I've shipped a live paid SaaS product with a real Paddle checkout and HMAC-SHA256 verified webhooks in production, not a demo.
Process
- Requirement review
- Technical plan
- Implementation
- Sandbox testing
- Deployment and handover
What I Need From You
Access to your existing codebase, your Stripe or Paddle account, and what you're charging customers for.
Not Included
- Stripe or Paddle processing fees
- Building an app from scratch, see my other Gig
- Legal or tax advice
Message me first for multi-gateway, Connect payouts, or an unfamiliar codebase, I'll confirm scope.
Get to know Lawrence Gomes
Lawrence Gomes
Full Stack Developer
- FromBangladesh
- Member sinceFeb 2021
Languages
English
I'm a full-stack developer based in Dhaka, Bangladesh, specializing in production-ready web apps, SaaS products, and AI-powered features.
Stack: Next.js, React, TypeScript, Node.js, PostgreSQL, MongoDB, Redis, Docker, Paddle, and AI APIs like Google Gemini. I've independently built and launched a paid SaaS product and delivered apps for local clients.
I focus on clean architecture, secure integrations, and practical deployment — clarifying scope and acceptance criteria upfront so projects stay predictable.
Send me your requirements and I'll recommend the best implementation path.
My Portfolio
FAQ
Do you handle my API keys and webhook secrets safely?
Always. Keys and secrets live in environment variables on the server, never in client code, and webhook signatures are verified before anything else runs.
Will this disrupt my existing checkout or revenue?
No. Everything is built and tested in sandbox mode first, with a staged rollout to production, so your live checkout keeps working the whole time.
Stripe or Paddle — which one should I use?
Stripe if you want the lowest fees and full control; Paddle if you want tax and compliance handled for you as Merchant of Record. I can set up either, or help you decide based on where your customers are.
Does this affect my PCI compliance scope?
Using Stripe or Paddle's hosted checkout keeps card data off your servers entirely, which keeps your compliance scope minimal — I'll confirm exactly what's needed for your setup.
Can you fix an existing broken integration instead of building a new one?
Yes — that's exactly what the Basic package covers: diagnosing webhook failures, signature mismatches, and test versus live configuration errors.
Do you work with an existing codebase?
Yes. I review your repository and current setup first, then integrate in a way that fits what's already there.
Will I receive the source code?
Yes, full source code is included in every package.
Do you offer support after delivery?
Yes — One Month Support is available as an add-on, covering bug fixes and minor tweaks after your billing goes live.
