Delivering production-grade real-time chat systems using WebSocket and WebRTC with focus on security, stability and performance.
Real-time chat at scale requires reliable message delivery across disconnects and instant presence updates without server overhead. The system must queue messages when connections drop, persist them reliably, and sync them when the connection returns.
Using technologies like Socket.io for real-time events, WebRTC for peer-to-peer features, and Redis for message persistence, the approach emphasizes connection resilience and efficient presence tracking. This keeps the system stable under load while remaining flexible enough to adapt to your specific requirements.
The approach focuses on reliability and performance at scale. Whether you need a new chat infrastructure or an upgrade to an existing system, the focus remains on minimizing message loss and keeping latency predictable.
Based on your business needs, I can provide a production-grade chat infrastructure for new products or upgrade your existing system with improved reliability and scalability.
Different services demand different communication strategies. Chat applications, embedded widgets, AI assistants, and video calls each require distinct architecture and optimization approaches.
| Communication Type | Typical Use Case | Key Technical Focus |
|---|---|---|
| In-app Chat | Internal team collaboration, customer support | Low-latency sync, offline resilience, message history |
| Embedded Chat Widget | Customer engagement, lead capture | Security, iframe isolation, quick integration |
| AI Chat Assistant | Conversational interfaces, automations | Streaming responses, context management, tool calling |
| Video Calls | Real-time meetings, live support | Bandwidth optimization, connection fallback, group management |
Say hi at hi@levchenkod.com