Build Application(Web + IOS + Android) for user/expert interface

Requirements:
Build a scalable and customizable platform to connect
Technical users to technical experts across platform through Voice call interface.


Features:
Live and instant call based connection and notification to experts
Payment platform for users
Expert evaluation flow
User feedback flow
User/Expert profile management
Admin console for control and reporting


Time frame:
Development methodology: Waterfall
Development: 1 month
Weekly demos during development phase
UAT Testing: 1/2 month
Go live support: 1/2 month

Inputs provided:
Requirements document
UI/UX designs

Outputs expected:
Technical specification
Unit testing document
Scalable and customizable application for Web/Ios/Android
self explanatory/commented Codebase