# Staff Machine Learning Engineer, Ads Conversion

**Company:** [Pinterest](https://hotfix.jobs/companies/pinterest)
**Location:** San Francisco, CA, Palo Alto, CA, Seattle, WA
**Role:** ML Engineering
**Salary:** $223k – $390k/yr
**Experience:** 6+ years
**Skills:** Python, TensorFlow, PyTorch, Deep Neural Networks, A/B Testing, Statistical Modeling, LLMs, SQL, Machine Learning Systems, Recommendation Systems
**Posted:** 2026-05-22

> Lead technical vision and development of large-scale DNN models for ads conversion modeling, improving user action prediction with low latency. Requires 6+ years building production ML systems at scale and 2+ years leading technical projects.

## Job Description

## What you’ll do

- 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

## What we’re looking for

- 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 day-to-day workflow
- 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: protect sensitive data, avoid over-reliance on AI, remain accountable for final deliverables
- Strong mathematical foundation and experience with statistical methods and A/B testing

## Similar roles

- [Staff Machine Learning Engineer, Ads Conversion Core Modeling](https://hotfix.jobs/jobs/f644645e-5449-4c8f-b14b-1603c1d9f370) - Pinterest - San Francisco, CA - $223k – $390k/yr
- [Staff Machine Learning Engineer, Programmatic Ads](https://hotfix.jobs/jobs/56b9d1ec-8b79-4ed0-bcb7-bc3c314040d6) - Pinterest - San Francisco, CA - $223k – $390k/yr
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**Apply:** https://hotfix.jobs/jobs/ff73b85a-4d2f-4719-a627-f2bdec52a278
**Canonical:** https://hotfix.jobs/jobs/ff73b85a-4d2f-4719-a627-f2bdec52a278