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Principal Machine Learning Engineer, Ads Delivery

Pinterest

$294,000 - $514,500
Nov 4, 2025
San Francisco, CA, US • Palo Alto, CA, US • Seattle, WA, US
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Pinterest's Ads Delivery team needs to evolve its marketplace to better connect pinners with partner products, improve the ads delivery funnel, and derive new insights from marketplace dynamics.

Requirements

  • Strong software engineering and mathematical skills with knowledge of statistical methods.
  • Hands-on experience with large-scale online e-commerce systems is a plus.
  • Background in computational advertising is preferred, but not required.

Responsibilities

  • Build and improve backend systems and statistical models that underlay the marketplace to maximize value for Pinners, Partners and Pinterest.
  • Define and implement experiments to understand long term Marketplace effects.
  • Develop strategies to balance long and short term business objectives.
  • Drive multi-functional collaboration with peers and partners across the company to improve knowledge of marketplace design and operations.

Other

  • MS or PhD degree in Computer Science, Statistics or related field.
  • 8+ years of industry experience.
  • 2+ years of experience leading projects/teams.
  • This role will need to be in the office for in-person collaboration 1-2 times/month, and therefore needs to be in a commutable distance from one of the following offices: San Francisco, Palo Alto, Seattle.
  • This position is not eligible for relocation assistance.