Mobile app admin backend development

We are developing project called : ASTROLOGER VIVEK JAIN" mobile application in Flutter but just need someone who can develop backend system to update content in Mobile application here the main section we are looking to development
For Astrology APP
Manage Users
Add/Update Users
Suspended Users
Delete Users

Manage Kundali
Add Kundali
View Kundali

Manage Astro App
Upload Special Note
Add Mantra by User
Add User Counselling
Add User Colour

Manage Special Information
Add Special Info

Dashboard must have all users display including Number of Users (Paid) Number of Users (Unpaid) Number of Users (Suspended)
Number of Users (Free Registration)

Add Users by Mobile app (User Registration) and Backend (admin)
First Name
Last Name
Phone Number
Alternate Number
Address
Country
User Status (Free, Economical, Premium)
Kundali Available (If Yes than system will shows UPLOAD process)

Technology No Limit but Secured environment required