Senior WebRTC Firmware Developer

2 days ago

Nashik, India Ezlo Innovation Full time

About the Role We're looking for an expert-level developer to own and evolve our WebRTC streaming orchestration service for smart home hub devices. This is a critical component that bridges IoT cameras with cloud services, enabling real-time video streaming for thousands of deployed devices. You'll join our firmware team and take full ownership of a production Go application (~6,600 lines) that handles WebRTC streaming, MQTT communication, and cloud integration. What You'll Work On - WebRTC Streaming Pipeline - Manage real-time video streaming from IP cameras to cloud clients via WebRTC and RTSP protocols - MediaMTX Integration - Orchestrate RTSP-to-WebRTC conversion through the MediaMTX server - MQTT Gateway - Handle bidirectional messaging between hub devices and cloud infrastructure - Network Resilience - Implement and improve retry logic, connection monitoring, and graceful degradation - ICE/TURN Server Management - Coordinate P2P connectivity and credential distribution - Metrics & Observability - Maintain OpenTelemetry tracing, structured logging, and performance metrics Tech Stack - Language: Go 1.22 (compiled for ARM Linux) - Protocols: WebRTC, RTSP, MQTT, WebSockets, MSE - Key Libraries: paho.mqtt.golang, gortsplib, gorilla/websocket, zerolog, viper - Infrastructure: MediaMTX, MQTT broker, cloud APIs - CI/CD: GitLab pipelines, S3 deployment - Target Hardware: ARM-based smart home hubs Requirements Must Have - Expert Go development - Production experience with concurrent Go applications, goroutines, channels, and memory management - Deep WebRTC protocol knowledge - Understanding of ICE, STUN/TURN, SDP negotiation, RTP/RTCP, and codec handling (H.264, MPEG4) - Embedded systems experience - Comfortable with resource-constrained environments, ARM architecture, and cross-compilation - Network debugging skills - Proficient with packet analysis, latency troubleshooting, and diagnosing connectivity issues across NAT/firewall scenarios - RTSP/streaming protocols - Experience with real-time streaming, media servers, and video pipeline optimization Nice to Have - MQTT protocol experience - IoT/smart home domain knowledge - Experience with MediaMTX or similar media servers - OpenTelemetry/distributed tracing - Linux systems programming What Success Looks Like - Reliable video streaming with minimal latency across varying network conditions - Quick diagnosis and resolution of streaming issues on deployed devices - Clean, maintainable code that other firmware team members can understand - Proactive identification of potential issues before they impact production Details - Team: Firmware team - Type: Full-time - Hardware: Access to hub devices provided for development and testing How to Apply Please include: - Resume highlighting relevant WebRTC/streaming experience - Examples of Go projects you've built or contributed to - Brief description of a challenging networking or streaming problem you solved

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