Principal Machine Learning Engineer

HubSpot · Flex - Cambridge

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Company
HubSpot
Location
Flex - Cambridge
Salary
$285,800 — $457,300
Posted
September 28, 2026

About this job

POS-33520 Principal Machine Learning Engineer HubSpot is an all-in-one marketing, sales, and service software platform that helps businesses grow and succeed. With a user-friendly interface and powerful tools, HubSpot enables businesses to attract, engage, and delight customers, ultimately driving growth and increasing revenue. From marketing automation to CRM, HubSpot offers a comprehensive solution that empowers businesses to succeed in the digital age. About the Team HubSpot is building the foundational AI infrastructure that powers our next generation of agentic product experiences. We’re looking for a Principal Machine Learning Engineer to help shape the base layer that product teams build on: agent runtime, evaluation systems, quality signals, model optimization, fine-tuning, and…

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