Our partner is looking for a Senior Machine Learning Engineer, Voice Agents based in Spain.
Own a major part of an open voice-agent stack at the intersection of machine learning, realtime systems, and developer infrastructure.
You will lead the architecture and evolution of an open-source speech-to-speech library while helping turn a new voice platform into a production-ready developer product.
The role combines deep backend and ML engineering with realtime audio, inference infrastructure, and developer experience.
You will have significant autonomy to shape APIs, streaming protocols, GPU serving, observability, and production architecture.
Your work will directly enable developers to build and deploy sophisticated voice agents and will support existing realtime deployments, including robotics applications.
Take architectural ownership of significant parts of the open-source speech-to-speech library, including pipeline design, latency budgets, and realtime loop reliability.
Review community contributions, triage issues, manage releases,



and help grow the contributor community around the project.
Take the platform from prototype to production through load testing, SLO definition, reliability improvements, and graceful degradation when models or network paths fail.
Contribute to the wider technical community through blog posts, demonstrations, conference talks, or other public technical content when desired.
Senior-level engineering experience with the ability to independently own a substantial part of an architecture and drive it forward.
Experience building developer-facing infrastructure in AI, machine learning, developer tools, or a comparable technical environment, such as inference APIs or agent infrastructure.
Significant open-source contributions to a Python library and strong proficiency with asynchronous Python.
Proven experience shipping realtime technology involving streaming, WebSockets, WebRTC, audio or video pipelines, or live inference.
Practical produ

📌 Senior Machine Learning Engineer, Voice Agents (España)
🏢 Jobgether
📍 España