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I will integrate stripe subscription billing and webhooks for your saas
Vasyl P.
Level 1
About this gig
Ready to add payments and recurring revenue to your SaaS?
I will integrate secure Stripe billing into an existing Next.js, React, Node.js, or NestJS application. The implementation is built around Stripe Checkout, verified webhooks, reliable database synchronization, test-mode validation, and a clear handoff.
I can help with:
- one-time Stripe Checkout payments
- monthly or annual subscriptions
- customer and subscription synchronization
- signature-verified webhook processing
- successful, failed, renewed, or canceled payment states
- Stripe Customer Portal
- trials, coupons, upgrades, and cancellations when included
- pricing-page and access-status integration
Every package has a defined billing flow, number of plans, events, and acceptance criteria. Stripe Connect, marketplace payouts, usage-based billing, tax or legal configuration, account verification, migrations, full SaaS development, and unrelated features require a separate scope.
Please message me before ordering with your stack, billing model, plans, currencies, current code, database, authentication, and deployment target. Never send passwords or secret API keys in chat.
Get to know Vasyl P.
Vasyl P.
Full Stack Developer for Next js, NestJS and SaaS
Level 1
- FromUkraine
- Member sinceJun 2021
- Avg. response time1 hour
- Last delivery3 weeks
Languages
English, Ukrainian, Russian, Romanian
I help SaaS founders and product teams build, fix and finish Next.js and NestJS applications. My focus is existing production codebases: bugs, unfinished features, TypeScript APIs, Stripe billing, authentication, databases, deployment and practical AI integrations. Clients value my communication, attention to detail and work across multiple delivery phases. I define scope before coding, reduce regression risk and leave the codebase easier to maintain. Share the issue, repository context and desired result, and I’ll recommend a fixed scope, milestones or an hourly approach.
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FAQ
Do I need an existing application?
Yes. This Gig is designed for an existing or partially built SaaS or web application. If you need the complete application, authentication, database, dashboard, and billing built from scratch, I will prepare a separate Full Stack Custom Offer.
What is the difference between the packages?
Basic covers one one-time Checkout flow. Standard adds one recurring subscription flow, customer and subscription synchronization, lifecycle webhooks, and Customer Portal. Premium covers a larger SaaS billing lifecycle with multiple plans, access synchronization, testing, and deployment verification
What access will you need?
I normally need temporary GitHub or GitLab collaborator access, or a complete ZIP archive. I may also need temporary access to the deployment project and limited Stripe test-mode access. Never send personal passwords or secret API keys in Fiverr chat.
How do you handle Stripe secret keys?
Secret keys must be added by you through the deployment platform's secret manager or environment settings. Do not paste them into chat, source code, screenshots, or a Git repository. I can provide the exact variable names and guide you through the setup.
Do you verify Stripe webhooks?
Yes. The agreed webhook flow uses Stripe signature verification and server-side event handling. I also design processing so repeated delivery of the same relevant event does not create duplicate application changes.
Do you support Stripe Connect or marketplace payouts?
Not inside these fixed packages. Connected accounts, onboarding, platform fees, split payments, payouts, multi-vendor logic, and marketplace compliance require a repository and business-flow review followed by a Custom Offer.
Can you add trials, coupons, upgrades, and downgrades?
Yes when the exact business rules are agreed before ordering. Standard covers a simple defined subscription flow. More complex lifecycle rules are included only in Premium or a Custom Offer.
Will you create or verify my Stripe account or configure my taxes?
No. You must own and verify the Stripe account and decide the legal, tax, refund, and pricing rules for your business. I implement the agreed technical flow but do not provide legal, accounting, tax, or regulatory advice.
What does a revision include?
A revision corrects the agreed billing flow when it does not meet the written acceptance criteria. It does not include a new plan, currency, payment method, business rule, page, integration, unrelated bug, or requirement introduced after ordering
Are Stripe fees included and what will I receive?
Stripe fees, hosting, taxes, and third-party costs are paid directly by you. You receive the implemented source code or repository commit, test-mode verification of the agreed flow, configuration guidance, handoff notes, and 3 days of support for the same delivered scope.
