Staff ML Engineer: Ads Bidding & Optimization

Pinterest; Seattle (WA); On-site; USD 223,000 - 390,000; Full time

Benefits offered by this job

Equity

Job summary

Pinterest in Seattle is seeking an experienced ML engineer to advance ads delivery systems, build target ROAS bidding and pacing models, and partner with product and sales to bring new ad products to market. You will drive data-driven strategies and collaborate with cross-functional teams to maximize advertiser value.

You will use AI coding assistants and perform experiments that validate and stress-test AI-assisted outputs, contributing to scalable optimization and revenue growth for the

Qualifications

• Bachelor's degree in CS, Statistics, or related field.
• 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.
• Degree in Computer Science, Statistics, or a related field.
• Direct experience specifically with bidding or pacing is a big plus.
• 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.

Responsibilities

• 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.

Skills

Ads delivery

Automatic bidding

Pacing

Target ROAS bidding

Machine learning

AI in workflow

AI coding assistants

LLM productivity tools

Education

Bachelor's degree in Computer Science

Degree in Computer Science/ Statistics/ related field

Tools

Cursor

Copilot

Codex

SQL

Data exploration tools

Job description

Pinterest in Seattle is seeking an experienced ML engineer to advance ads delivery systems, build target ROAS bidding and pacing models, and partner with product and sales to bring new ad products to market. You will drive data-driven strategies and collaborate with cross-functional teams to maximize advertiser value.

You will use AI coding assistants and perform experiments that validate and stress-test AI-assisted outputs, contributing to scalable optimization and revenue growth for the