Update and Integrate Portal Code

I am seeking an experienced developer to assist with updating and integrating my recharge portal. I have the source code and APIs for WhatsApp and a payment gateway. The primary tasks include removing the existing company name from the code and replacing it with my own, integrating the WhatsApp API into my website, and integrating the payment gateway.

Key Requirements:
- Update the company name throughout the source code
- Integrate WhatsApp API into the website for seamless communication
- Integrate the payment gateway for secure transactions
- Provide guidance on how to offer the WhatsApp API to others
- Ensure the project is live with minimal hosting changes and modifications

Ideal Skills and Experience:
- Proficiency in working with APIs and source code modification
- Experience with integrating communication and payment systems into websites
- Strong understanding of web hosting and live project management
- Ability to provide clear instructions and support for API usage

Please note that only Indian users are requested to bid on this project.