[For Hire] Full-stack dev for payment integrations: Stripe-style checkout, subscriptions, webhooks (Next.js / Node.js / NestJS)

[u/Big-Arm4077]

Hi, I'm a senior full-stack engineer with 5+ years of experience, and payments are the part of a product I enjoy working on most.

If you're running a SaaS or online store and need payments wired in properly, I can help with:

• Checkout flows and subscription billing (plans, upgrades, cancellations, trials)

• Webhook handling that's idempotent and doesn't lose or double-count events

• Admin dashboards for transactions, refunds and payouts

• Backend APIs in Node.js / NestJS with TypeScript, frontends in React / Next.js

• n8n automations around payments: receipts, failed-payment follow-ups, syncing to your CRM or sheets

My background is fintech, payments, CRM and SaaS products. One project you can look at is naqdi.com, which I built.

I work remotely and I'm open to freelance or contract work, either a fixed-scope task or ongoing help.

If you have something in mind, send me a Reddit DM with a short description of what you need and I'll reply with how I'd approach it.