Realtime Media Engineer

Responsibilities:

• Design and implement real-time audio/video streaming systems with ultra-low latency.
• Build and optimise WebRTC pipelines, including signalling and media transport.
• Develop and maintain SFU-based architectures for scalable real-time communication.
• Ensure audio-video synchronisation and handle jitter, packet loss, and network variability.
• Configure and manage TURN/STUN servers for reliable NAT traversal.
• Develop media processing pipelines using GStreamer or FFmpeg.
• Optimise encoding pipelines using NVIDIA NVENC hardware acceleration.
• Deploy and manage streaming infrastructure on AWS (EC2 GPU, VPC, networking).
• Collaborate with cross-functional teams to integrate real-time avatar systems.
• Monitor and maintain production systems with strict latency SLAs.

Requirements:

• Strong expertise in WebRTC: ICE, DTLS, SRTP, SDP, simulcast, SVC.
• Hands-on experience with SFU frameworks: LiveKit, mediasoup, Janus, or Jitsi.
• Deep understanding of video/audio codecs: H. 264 VP9 AV1 Opus (including bitrate tuning).
• Experience with NVIDIA NVENC hardware encoding.
• Proficiency in GStreamer or FFmpeg pipeline development.
• Strong knowledge of audio/video synchronisation, jitter buffers, and packet recovery.
• Experience with TURN/STUN servers and NAT traversal.
• Hands-on experience with AWS (EC2 GPU instances, VPC, Elastic IP setup).
• Programming expertise in Go, Rust, C++, or async Python.
• Proven experience delivering sub-second latency systems in production.

Preferred Qualifications:

• Experience with CUDA-based video pipelines.
• Background in video conferencing, live streaming, or cloud gaming systems.
• Familiarity with ML inference serving: Triton, vLLM, ONNX.
• Experience with container orchestration: ECS or Kubernetes (GPU workloads).
• Contributions to open-source projects such as LiveKit, FFmpeg, mediasoup, or Pion.

Skills

FFmpeg, GStreamer, Janus, Jitsi, LiveKit, SFU, WebRTC, mediasoup