Staff ML Engineer – Ads Conversion & Large-Scale Modeling

Pinterest; Palo Alto (CA); On-site; USD 222,716 - 389,753; Full time

Benefits offered by this job

Equity compensation

In-office collaboration 1–2 times per月

Job summary

Pinterest is seeking a Staff Machine Learning Engineer to lead the technical vision for the Ads Conversion Core Modeling team, building state-of-the-art systems for the global marketplace. You will shape the direction of applied ML projects, design scalable models, and collaborate with product and sales to craft new ad products.

Ideal candidates bring 6+ years building production ML systems at scale, 2+ years in leadership, and strong skills with AI coding tools and statistics.

Qualifications

• 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.
• 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.
• 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, 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.

Skills

Machine Learning Systems

Leadership

AI Coding Assistants

SQL & Data Exploration

A/B Testing

Statistical Methods

Education

Bachelor’s degree in Computer Science or Statistics

Tools

Cursor

Copilot

Codex

Job description

Pinterest is seeking a Staff Machine Learning Engineer to lead the technical vision for the Ads Conversion Core Modeling team, building state-of-the-art systems for the global marketplace. You will shape the direction of applied ML projects, design scalable models, and collaborate with product and sales to craft new ad products.

Ideal candidates bring 6+ years building production ML systems at scale, 2+ years in leadership, and strong skills with AI coding tools and statistics.