CodeIgniter Java Swift development needed on existing Service Marketplace

We have existing script to be updated as per some customization work which may consist of several tasks. for now we are having these features here:



Users:

SuperAdmin
AdminUsers
SaloonOwners
Saloon Employees
Freelancer Stylist(s)
Customers

Few required Features:

* Customer Appointments
* Saloon Owners will register employees with their service and prices
* Stylist may also list all services and prices
* Discount and Coupons
* Order management
* App push notifications
* Adminusers or superuser may mark a stylist or saloon as recommended
* while approving SaloonOwners/Stylists their profile should have feature to set commision on services etc, so further transactions will be handled accordingly