Principal Machine Learning Engineer
ZoomInfo Technologies LLC·Waltham, Massachusetts, United States·Posted 28 September 2026
About the role
ZoomInfo is where careers accelerate. We move fast, think boldly, and empower you to do the best work of your life. You’ll be surrounded by teammates who care deeply, challenge each other, and celebrate wins. With tools that amplify your impact and a culture that backs your ambition, you won’t just contribute. You’ll make things happen fast. You'll set the technical direction for the intelligence layer every ZoomInfo AI agent reasons over — what's true about companies and the people in them, how they relate, and what they're buying. As a senior individual contributor with no direct reports, you will own strategy across the data graph, entity resolution, and buying intent, staying hands-on in the hardest of these problems. You'll decide when classical machine learning, statistics, or language models is the right tool, and turn good judgment into standards other teams adopt. What You'll Do You will set technical strategy for the data graph, entity resolution, buying intent, and agent context, deciding which problems to take on, in what order, and how the pieces connect. You will frame and ship problems nobody has framed yet, such as extraction for companies with no public footprint…
This is a summary of the advert. The full description and the application are on ZoomInfo Technologies LLC's careers site.
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