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Software Engineer III, App Ads Horizontal Modeling

GoogleMillbrae, CAL6 LeadOctober 26th, 2026
Overview: As part of Google's App Ads team, you'll shape ML-driven ad experiences at massive scale. You'll collaborate across teams to deliver robust models and reliable systems, from design reviews to production deployment, while enhancing ad quality and ROI for advertisers. You'll work on state-of-the-art AI, including Generative AI, to power a fast-growing area and impact billions of users. This role offers ownership of meaningful, cross-functional projects and opportunities to switch teams as you grow. Compensation / Benefitsbonus targetequitybenefitscareer growth opportunitiesdiverse teamswork at scale
Responsibilities:
  • Collaborate on design and code reviews to promote best practices across technologies
  • Contribute to documentation and adapt content based on product updates and user feedback
  • Triages and debugs issues affecting hardware, network, or service operations and quality
  • Design and optimize deep learning models to predict user interactions with ad formats across Google's channels
  • Deliver engineering innovations to improve App Ads quality and enable business growth
Key requirements: Bachelor's degree or equivalent practical experience 2 years programming in Python or C++1 year building and deploying recommendation systems models in production 1 year end-to-end machine learning experience (deployment, evaluation, optimization, data processing, debugging)collaborationleadershipproblem solving PythonC++machine learning