Develop SAAS Multiple Attendants System in WhatsApp — 2

Summary design:
Customize source code for Multiple Attendants System in WhatsApp or develop from scratch (The programmer can evaluate what is mostfeasible). We have the source code made in Node.JS and React
Detailed design:
Customize the source code for a SAAS system for resale of Multi-Agent Chat service on WhatsApp (A number and multiple attendants in the same WhatsApp), where possible. Multiple users simultaneously servicing the same number of WhatsApp or more.
Important project items:
• Front End and Design
• Back End
• Superadmin
• Admin
• User interface
• SAAS financial part (From customer registration to collection)
• Server configuration
• System needs to configure multiple clients on the same server easily
• System based on Whatsapp QR Code and not official API
• We need someone to guarantee backups on the server because it’s client data
• On the server you need to use containers to receive multiple clients and administer processing x space