Full Custom Mobile Communication Platform Development

Looking for Expert Team to Build FULL CUSTOM Mobile App (NO Agora / NO 3rd-Party SDK)

Hello Freelancers,

We are looking for a highly experienced mobile app development team or individual to build a large-scale FULL CUSTOM real-time communication platform.

Important:
This project must be developed using FULL CUSTOM technology.
No Agora
No Twilio
No third-party calling or messaging SDK
No ready-made WebRTC SaaS platforms

All signaling, media handling, backend logic, scaling, and security must be implemented from scratch.

Only expert-level developers should apply.

Core Features (Full Custom System)
Video & Voice Communication

Video Call (1-to-1 and Group)

Voice Call (1-to-1 and Group)

Screen sharing during calls

Meeting system with host and participant controls (similar to Zoom)

Call and meeting recording

Call and meeting history

Teaching and learning via calls

Billing and disbursement from teaching sessions

Notification and alert system for users

Custom Chat System

One-to-one chat

Group chat

Broadcast group
(Message sent once, delivered as individual inbox messages)

Group creation for chat and calls

Invite friends using contact list

Referral link sharing

Device & Call Utilities

App-to-SIM SMS

App-to-SIM call

Full call history tracking

NFT & Token System

Video calling NFT token

Tracking video NFT token

Token-based access control

Affiliate & Wallet System

Three-generation affiliate earnings

Earning wallet

Main wallet (for all charges)

Wallet-to-wallet transfer between users

Add referral after signup if skipped initially

Earning wallet integration with existing defilink.org database

Plan-2: Tracking, Boost & Entertainment Module
Tracking System

Real-time location tracking

Geo-fence

Nearby friends tracking

Group-based tracking

Special member tracking

Distance-based search (meter-based)

Event attendance tracking (leader controlled)

Kids tracking system

School and home attendance confirmation

Emergency call feature

Boosting & Commission System

Internal boosting system

Commission-based boosting

Social media data or cookie-based boosting logic

Entertainment & Utilities

Live TV (local and international)

Live cricket and football score view

Live radio

Live weather updates

Technical Requirements

Custom signaling server

Custom media server or streaming pipeline

Strong experience with low-latency audio and video systems

Understanding of SFU and MCU architectures

Mobile App: Flutter, React Native, or Native Android and iOS

Backend: Node.js, Go, or Rust (proposal-based)

Database: PostgreSQL, MongoDB, Redis

Scalable and secure architecture (microservices preferred)

Secure wallet and affiliate system

Full source code and technical documentation required

Who Should Apply

Proven experience in building custom real-time communication platforms

Strong knowledge of WebRTC internals, RTP/RTCP, and signaling

Experience with media servers and real-time streaming

Experience with wallet, fintech, or affiliate systems

Strong DevOps and system scaling skills

Include in Your Proposal

Timeline and milestone breakdown

Estimated budget

Post-launch support and maintenance plan