I already have a React-based consultation-booking site that is roughly 70 % complete. The core UI and booking flow are in place, but I still need three critical pieces wrapped up so the product can go live. First, Razorpay is our chosen payment gateway. The checkout view is designed; what’s left is wiring the front-end to Razorpay’s API, handling success / failure callbacks, and storing the transaction response so it can be surfaced in the admin panel. Second, WhatsApp OTP must cover four user touchpoints: • user verification during login • booking confirmation reminders • password resets • appointment reminders (day-of and one-hour-before) The OTP service should trigger through the WhatsApp Business API, confirm delivery status, and fall back gracefully if a message fails. Finally, I need the entire stack deployed on AWS. An S3 + CloudFront setup for the React build is fine, or an EC2/Elastic Beanstalk workflow if it better suits your deployment preference—what matters is a reproducible pipeline, secure environment variables, and the domain pointing to the production build. Deliverables: 1. Razorpay payment flow fully functional and tested in live mode. 2. WhatsApp OTP integration covering all four scenarios with audit logs. 3. Automated AWS deployment with clear README or deployment script. If you’ve integrated Razorpay and WhatsApp OTP in React before and are comfortable pushing to AWS, this should be a straightforward wrap-up. Let me know your timeline and any library choices you plan to use so we can get this across the finish line.