WhatsApp Task Management Bot Development

We are looking for a professional programmer to create a WhatsApp bot that manages tasks and integrates with Microsoft To Do
The bot should be able to:

Manage tasks:

Add, update, delete, and review tasks via WhatsApp.
Integrate with Microsoft Graph API.
Use AI (ChatGPT):

Summarize tasks.
Generate reports for users based on completed and remaining tasks.
User subscription system:

That's it
Support monthly/yearly subscriptions.
Send notifications for subscription renewal.
Reminder notifications:

Send automated messages to remind users of task due dates.