Stripe Payment Integration in Existing Next.js/TypeScript Website

I need an experienced developer to add a payment module to my existing website built with Next.js and TypeScript. This is a small, well-defined task with clear scope. Good work here can lead to future contracts on the same project. Project Scope Payment Integration: Integrate Stripe Checkout for one-time payments on healthcare services page Checkout Flow: Payment button → Stripe hosted checkout → redirect back to site Webhook: Single webhook to confirm successful payment and handle failures Pages: Success and cancel/failure pages Security: No card data touches our servers, Stripe hosted checkout only Testing: Full flow tested in Stripe test mode first, then live keys deployed Tech Stack Next.js (App Router), TypeScript. You will work in an existing codebase. Working payment flow on production Webhook configured and verified Short handover note (env vars, Stripe dashboard settings) Requirements Proven Stripe integration experience Clean, documented code. Clear communication and delivery within timeline