👉 Hi! We're looking to hire an LiveKit Expert - SIP & Call Center Systems 👈 Important: We're looking for an engineer with Production Ready products based on SIP and LiveKit, we're looking to create a tool that will handle over 1000 extensions and over 200 concurrent calls. 100% Remote - Worldwide 🌎 Position Overview We're seeking an experienced LiveKit developer with deep expertise in SIP protocols and large-scale call center implementations. You'll be responsible for building enterprise-grade telephony features supporting high-volume operations in a focused 2-month max engagement. Required Experience - LiveKit WebRTC: Production experience with real-time communications - SIP Protocols: Deep understanding of SIP trunking, call routing, and telephony standards - Call Center Scale: Proven track record with enterprise systems handling: - 1000+ phone extensions - 250+ concurrent calls - High-availability requirements Core Features to Build - Extension Management: Handle 1000+ extensions with routing and presence - Call Control Features: - Listen (supervisor monitoring) - Whisper (private supervisor guidance) - Barge-in (supervisor intervention) - Auto-dialer System: Automated outbound calling with intelligent routing Technology Stack - Backend: Django (monolithic architecture) - Frontend: React with Inertia.js - Real-time: LiveKit WebRTC, SIP protocols