Principal Machine Learning Engineer is open at ZoomInfo in Waltham, Massachusetts, United States. The posting gives a salary of $192K - $302K. Posted on Sep 28, 2026, and still on ZoomInfo’s careers page when we last checked, on Nov 14, 2026.
About the role
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 or semantic intent at web scale, deciding what not to build as deliberately as what to build. You will define evaluation…
The opening lines of the posting. The rest is on ZoomInfo’s careers page.
Hiring at ZoomInfo
ZoomInfo has 92 open roles right now, 16 of them remote. Most are in Engineering, Sales & Business Development and Product. The median advertised salary across its roles with a published range is $144K. See all its roles
