Principal Machine Learning Engineer, Ads Modeling
DataJobs
Mountain View, CA · $223k–$325k a year · Posted October 22, 2026
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Pay compared with the market
This listing pays about $274,000 a year. Across 50 open principal machine learning engineer listings that state pay, the middle half runs $214,500 to $313,500 and the median is $274,000. That is inside the middle half of those listings and at the median.
Listed pay is what employers advertise, not what people are paid.
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About the job
...Unity Technologies SF is looking for a Principal Machine Learning Engineer to help advance Unity Vector Ads Modeling , building better ads recommendation algorithms that power personalized ad experiences. This onsite role in Mountain View, CA combines research depth...