Staff Machine Learning Engineer, Ads Conversion Core Modeling
About The Position
We are looking for a Staff Machine Learning Engineer to lead the technical vision for our Ads Conversion Core Modeling team, building the state-of-the-art systems that power our global marketplace. At Pinterest, AI isn't just a feature, it's a powerful partner that augments our creativity and amplifies our impact, and we’re looking for candidates who are excited to be a part of that. To get a complete picture of your experience and abilities, we’ll explore your foundational skills and how you collaborate with AI. Through our interview process, what matters most is that you can always explain your approach, showing us not just what you know, but how you think. You can read more about our AI interview philosophy and how we use AI in our recruiting process here.
Requirements
- Bachelor's degree in Computer Science, Statistics, or a related field.
- 6+ years of industry experience building production ML systems at scale (Search, Recommendations, or Ranking).
- 2+ years of experience leading technical projects or teams.
- Demonstrated ability to use AI to improve speed and quality in your day-to-day workflow for relevant outputs.
- Experience with Cursor, Copilot, Codex, or similar AI coding assistants for development, debugging, testing, and refactoring.
- Familiarity with LLM-powered productivity tools for documentation search, experiment analysis, SQL/data exploration, and engineering workflow acceleration.
- High integrity and ownership: you protect sensitive data, avoid over-reliance on AI, and remain accountable for final deliverables.
- Strong mathematical foundation and experience with statistical methods and A/B testing.
Responsibilities
- Lead the technical direction and development of state-of-the-art applied ML projects for ads conversion.
- Design and build large-scale DNN models to improve user action prediction with low latency.
- Mine text, visual, and user signals to better understand intention and infer interests from online activity.
- Use AI to accelerate analysis and iteration, while applying judgment and verification to ensure correctness and quality.
- Automate repeatable tasks such as documentation, reporting, and QA checks to speed up the development lifecycle.
- Coach and mentor engineers while collaborating with product and sales to design new ad products.
Benefits
- The position is also eligible for equity.
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What This Job Offers
Job Type
Full-time
Career Level
Senior
