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Staff / Principal Machine Learning Engineer, Serving

Inworld AI | Remote, United-Kingdom | Posted June 08, 2026

Position Overview

About Inworld

Inworld is a research lab of top researchers and engineers, building the world’s top-ranked realtime voice models.


Candidates should take the time to read all the elements of this job advert carefully Please make your application promptly.

Today our models are the #1 ranked realtime voice models in the world. They are used to power the largest consumer-facing AI applications available, across categories like health, fitness, learning, therapy, companions, customer experience and media; representing 100s of millions of end users. Our work spans areas like research and development of state-of-the-art models, optimizing realtime inference, and creating best-in-class APIs and products that allow developers to engage their users.


We’ve raised more than $125M from Lightspeed, Section 32, Kleiner Perkins, Microsoft’s M12 venture fund, Founders Fund, Meta and Stanford, among others. Our technology has powered expe...

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