Staff Machine Learning Engineer, Ads Bidding & Pacing

The role

This person will design target ROAS and automatic bidding and pacing algorithms for ads. They will explore bid landscapes and work with product and sales teams to implement bidding strategies for new ad products.

What you will do

• Design target ROAS and automatic bidding & pacing algorithms for ads.
• Explore bid landscapes to maximize revenue and advertiser value.
• Work with product and sales teams to design and implement bidding strategies for new ad products.
• A/B Experiment with bidding algorithm improvement ideas.
• Collaborate with other teams to identify bidding and budgeting opportunities and capitalize on them.

Required qualifications

• Bachelor's degree in Computer Science, Statistics, a related field, or equivalent experience.
• 6+ years of industry experience in ads delivery, automatic bidding / pacing, target ROAS bidding, ads marketplace / utility, or machine learning.
• Proven Staff-level technical leadership as an IC: driving technical direction and cross-team alignment without formal people management.
• Demonstrated ability to use AI to improve speed and quality of your workflow, with a strong track record of validating and stress-testing AI-assisted 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.

Nice to have

• Direct experience specifically with bidding or pacing

Before you apply

• US based applicants only
• This position is not eligible for relocation assistance.

About the company

Pinterest is an online ad platform where millions of people find creative ideas and plan for memories. The company aims to bring everyone the inspiration to create a life they love.