Need Full-Stack Dev to Integrate Stripe Checkout, Subscriptions & Webhooks for Next.js SaaS

We are looking for an experienced developer to integrate Stripe into our existing Next.js and Supabase platform. You will be responsible for setting up tiered monthly subscriptions, custom customer portals for cancellations, and robust Webhook handling to securely sync payment status back to our PostgreSQL database. Clean TypeScript code is a must. Budget is fixed, looking for someone who can start immediately.