Pinterest is hiring a Machine Learning Engineer to architect the AI infrastructure for our Connected TV advertising platform. You will build the systems that power real-time bidding, campaign optimization, and incrementality measurement at scale, serving as a technical lead on a distributed engineering team.
What You'll Do
- Write production Python that powers real-time bidding, model training, and campaign optimization.
- Train, deploy, and monitor ML models that decide which ads to show, when, and at what price.
- Build and improve incrementality measurement systems to help advertisers understand the true causal lift of their CTV spend.
- Design and implement new ML products across the ad-buying lifecycle: audience targeting, bid optimization, pacing, and attribution.
- Use LLMs and generative AI to build internal tools that accelerate how we develop, test, and ship ML systems.
What We're Looking For
- Strong production Python skills.
- Solid statistics and ML fundamentals, including reasoning about experiment design and model evaluation.
- Familiarity with modern AI tools and good judgment about where they add value.
- Adtech or CTV experience: familiarity with RTB, programmatic advertising, supply-path optimization.
- Clear written communication.
- Comfort with ambiguity and owning problems end-to-end.
Nice to Have
- Teaching experience.
- Causal inference: uplift modeling, synthetic controls, difference-in-differences, or incrementality testing.
- Big data experience with Scala and Spark.
- Systems programming experience in Zig or similar (C, C++, Rust).
- Reinforcement learning or bandit algorithms in production.
- Experience building agentic AI systems or LLM-powered workflows.
- MLOps experience: model deployment, monitoring, and pipeline orchestration on AWS.
Technical Stack
- Python, AWS, Scala, Spark, Zig, C, C++, Rust
Team & Environment
You will be a technical lead and mentor on a distributed engineering team.
Benefits & Compensation
- Compensation: $155,584—$320,320 USD + equity: Eligible for equity.
Work Mode
This is a remote position open to candidates in the US.
Pinterest is an equal opportunity employer and makes employment decisions on the basis of merit. All qualified applicants will receive consideration without regard to race, color, ancestry, national origin, religion, sex, sexual orientation, gender, age, marital status, veteran status, disability, medical condition, genetic information, or other legally protected characteristics.
