Senior Machine Learning Engineer, Voice Agents - EMEA Remote

Description du poste

At Hugging Face, we're on a journey to democratize good AI. We are building the fastest growing platform for AI builders with over 11 million users who collectively shared over 3M+ models, 1M+ datasets & 1.47M+ apps. Our open-source libraries have more than 600k+ stars on Github.

About the Role

We are building the open voice-agent stack for Hugging Face, and we are looking for a senior engineer to own a large part of it.Two things sit at the centre of this role. The first is speech-to-speech, our open-source library for realtime voice agents. The second is hf-voice, a new product that will let any developer build and deploy voice agents with their Hugging Face account.

The library already powers the Reachy Mini fleet and there is a public demo running on Spaces, so you won't start from a blank page. But almost everything about how this becomes a product developers rely on is still open, and you will have a direct say in it.

Your missions

• Own the Open-Source Library:

• Take architectural ownership of large parts of speech-to-speech: pipeline design, latency budget, and the reliability of the realtime loop.
• Integrate new ASR, TTS and end-to-end speech models as they land, and keep the abstractions clean while the model landscape keeps moving.
• Review community PRs, triage issues, cut releases, and grow the group of contributors around the project.

• Ship hf-voice:

• Design the developer API and the streaming protocol: session lifecycle, transport (WebSockets/WebRTC), authentication, error semantics, versioning.
• Build the serving side: realtime inference on GPU, concurrency, autoscaling, observability, and cost per session.
• Work with the Hub and inference teams so that a working voice agent is easy to integrate into products and demos.
• Take the product from demo to production: load testing, SLOs, graceful degradation when a model or a network path misbehaves.
• Work in the Open:

• Write the docs, examples and templates that get

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