Freelancer Development Requirement – WhatsApp Multi-Account API Service

I am looking for an experienced full-stack developer to build a WhatsApp multi-account
management system.
The platform should allow users to easily connect multiple WhatsApp accounts to a web dashboard and manage all conversations in one place.

Main Goals:

Connect multiple WhatsApp numbers to one web system

Manage customer chats efficiently

Provide grouping, tagging, automation, and analytics

✨ Core Requirements
1. WhatsApp Account Connection

The system should allow users to connect their WhatsApp numbers through a simple onboarding method such as:

Scanning a QR code

Using WhatsApp Cloud API tokens

Any secure integration recommended by the developer

After connecting, the WhatsApp account should stay logged in and be usable directly from the web dashboard.

2. Multi-account Dashboard

Users must be able to:

Add multiple WhatsApp numbers

Switch between accounts easily

View all active sessions

Monitor connection status

3. Messaging & Customer Management

The web platform should provide features similar to a CRM:

Real-time chat interface

Message templates (quick replies)

Customer contact list

Tags / labels

Customer notes

Chat history search

4. Grouping & Segmentation

Users should be able to group contacts by:

Tags

Import lists

Chat behavior

Manual grouping

5. Automation (Optional but Preferred)

Auto-reply rules

Welcome messages

Offline/away messages

Basic chatbot logic