Meta WhatsApp API Integration into PHP Admin Panel

PHP Developer Required – Official Meta WhatsApp Cloud API Integration with Existing Admin Panel
Project Overview

We are looking for an experienced PHP developer to integrate the Official Meta WhatsApp Business Cloud API into our existing recruitment platform.

We already have:

A live Flutter mobile application
An existing PHP-based Admin Panel
A WhatsApp Business Account

We need WhatsApp to be fully integrated with our existing admin panel for two-way communication and automation.

Scope of Work

The developer will:

Integrate the Official Meta WhatsApp Cloud API.
Configure webhook endpoints.
Receive incoming WhatsApp messages in the admin panel.
Allow admin users to reply directly from the admin panel.
Display complete chat history for each user.
Send approved WhatsApp template messages.
Send individual and bulk WhatsApp messages.
Support media messages (Images, PDFs, Documents).
Store all incoming and outgoing messages in the database.
Implement proper logging, webhook verification, and error handling.
Secure API credentials.
Write clean, documented, and scalable PHP code.
Required Features
Two-way WhatsApp chat
Incoming message webhook
Outgoing message API
Message status (Sent, Delivered, Read)
WhatsApp Template Message support
Media support
Conversation history
Search conversations
User-wise chat management
Bulk messaging
Multi-admin support
Technical Stack
PHP
MySQL
REST APIs
Meta WhatsApp Business Cloud API
GitHub
Deliverables
Complete working integration
Source code committed to our GitHub repository
Database migration/scripts (if required)
API documentation
Installation guide
Deployment assistance
30 days of bug-fix support after delivery
Developer Requirements
Strong PHP development experience
Previous experience with the Official Meta WhatsApp Cloud API
Experience with webhooks and REST APIs
Git/GitHub workflow experience
Ability to work with an existing codebase
Proposal Requirements

Please include:

Examples of previous WhatsApp Cloud API integrations.
Estimated timeline.
Fixed project cost.
Confirmation that you will use the Official Meta Cloud API (not third-party providers).
Your approach for handling incoming messages, webhooks, media files, and message synchronization.
Important
This project is for integration into an existing application, not a new build.
All code must be well documented and committed to our GitHub repository.
Please begin your proposal with the word "CloudAPI" so we know you have read the complete project description.