Principal Machine Learning Engineer (Up to £135k + Equity) at Speechmatics
Jack & Jill • london, england • Posted June 30, 2026
About the Role
Job Title
Principal Machine Learning Engineer
Salary
Up to £135,000 + Equity
Company Description
Speechmatics is a $62M Series B speech‑to‑text intelligence leader based in Cambridge and London, pioneering world‑class Voice AI that supports over 55 languages.
Job Description
As a Principal Machine Learning Engineer, you will co‑define Speechmatics’ technical vision while remaining hands‑on in the Modelling Team. You will bridge the gap between cutting‑edge research and production systems, developing next‑generation transformer models and optimizing inference for global scale. This is a high‑ownership role focused on shipping real‑world impact.
Location
London, UK
Why this role is remarkable
- Lead the technical direction of a $62M Series B scale‑up that recently saw 4x growth in real‑time usage and serves global customers.
- Work at the rare intersection of high‑rigor M...