Real-Time Audio Systems Engineer (Real-Time Browser Audio)

We are seeking a highly skilled Real-Time Audio Systems Engineer with strong expertise in browser-based audio streaming, WebSockets, and real-time voice bot architecture. The ideal candidate will design and implement low-latency, full-duplex audio pipelines that run directly in the browser and integrate with up-to-date STT, LLM, and TTS systems.

Responsibilities

- Build real-time browser audio clients using Web Audio API, MediaRecorder, AudioContext, AudioWorklets, and WebSockets.

- Implement bi-directional audio streaming (microphone backend speaker) with <500ms latency targets.

- Integrate streaming STT (AssemblyAI, OpenAI Realtime, Transcribe, or similar).

- Implement streaming TTS playback, including chunked audio decoding and buffered playback.

- Develop backend streaming servers (Node.js/Python) for handling audio frames, STT events, LLM routing, and TTS responses.





- Build and optimize wake-word workflows and VAD (voice activity detection).

- Handle audio formats & codecs (PCM, Opus, WAV) and real-time transcoding.

- Ensure reliability: reconnection logic, jitter buffers, packet timing, audio frame synchronization.

Requirements

- Strong experience with WebSockets and browser-based real-time audio.

- Deep understanding of Web Audio API, audio buffers, sample rates, streams, and playback pipelines.

- Hands-on experience with streaming STT/TTS and integrating LLMs.

- Proficiency in Node.js or Python for real-time backend services.

- Knowledge of DSP basics (noise suppression, VAD), latency optimization, and audio pipeline debugging.

Nice to Have

- Experience with WebRTC audio.

- Familiarity with wake-word engines (Picovoice, Porcupine).

- Experience building Alexa/Siri-like conversational agents.

📌 Real-Time Audio Systems Engineer (Real-Time Browser Audio) (Chennai)
🏢 Quantum Strides
📍 Chennai