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Saurabh DantaniFull Stack Developer
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Full StackWebRTC Video

Chat Application with Video Calling

Real-time messaging platform with one-on-one and group chat, video calling, file sharing, message reactions, and online status indicators. Built with WebRTC for peer-to-peer video calls. Built with clean modular architecture, rigorous automated testing, and comprehensive logging. Designed from the ground up for high reliability, security, and lightning-fast user interactions.

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Chat Application with Video Calling - Full Stack Architecture & Implementation
The Challenge

Businesses needed encrypted, low-latency one-on-one and group messaging with direct browser-to-browser video calls.

The Solution

Created real-time communication suite leveraging WebRTC mesh architecture, Socket.io signaling, and message persistence.

The Impact

Crystal-clear peer-to-peer video streaming with instant read receipts and media sharing.

Technologies & Tools

React.jsNode.jsSocket.ioWebRTCMongoDBRedisTailwind CSS

Key Engineering Challenges

1Handling NAT traversal using STUN/TURN servers reliably across restricted firewalls
2Ensuring end-to-end message delivery with offline queueing and sync
3Optimizing bandwidth utilization during multi-participant video calls
4Managing audio/video track switches and mute events dynamically

Results & Measurable Outcomes

Delivered <150ms roundtrip audio/video latency
Supported instant messaging with media attachment uploads
Maintained 99.8% call connection success rate across global users
Built responsive layouts optimized for desktop and mobile browsers
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