Subscription Site & Billing Integration

I need a developer who can take me from zero to launch on a brand-new subscription website. The heart of the build is a smooth, reliable payment flow that charges members on a recurring basis and issues invoices automatically. I have not locked myself into a specific gateway yet, so feel free to recommend the best fit—whether that ends up being PayPal, Stripe, or another provider you trust for recurring payments.

Here is what a successful hand-off looks like to me:
• A modern, responsive site branded with my assets and ready for real users.
• Secure account creation and login tied to the subscription logic.
• Fully integrated recurring payment system with automated invoicing and email receipts.
• A lightweight admin area where I can view active plans, failed charges, and customer details.
• End-to-end testing so we know upgrades, downgrades, and cancellations behave exactly as expected.
• Clear documentation covering how to add plans or update pricing on my own.

If you have previous examples of subscription builds—especially ones using out-of-the-box APIs for billing—please include a link or two so I can get a feel for your approach.