Sr. Machine Learning Engineer, Content Shopping at Pinterest.
About the role Join the Content Shopping Mining ML team to transform unstructured web data into structured product information. You will build and scale systems that identify high-value merchant content to improve search relevance and shopping experiences for over 535 million users.
Key facts Location: Toronto, ON, CA
Engagement: Regular
Team: Content Shopping Mining ML
What you'll do Identify and evaluate high-value content sources including social media, merchants, and websites.
Develop scalable systems for content acquisition and attribute extraction.
Collaborate with cross-functional partners to enhance content quality and search relevance.
Train, fine-tune, and distill language models for production-scale deployment.
Architect systems for large-scale data management and automated model iteration.
Utilize agentic coding tools to improve development speed and operational efficiency.
Requirements 5+ years of industry experience in machine learning applied to ranking, search, NLP, recommender systems, reinforcement learning, or graph representation learning.
Hands-on production experience in training, evaluating,



and deploying language models.
Ability to drive ambiguous projects forward with autonomy and creative problem-solving.
Experience or solid interest in large-scale content acquisition, web scraping, and crawling.
Nice to have M.S. or Ph.D. in Computer Science, Machine Learning, or a related technical field.
Publications in top-tier machine learning conferences.
Experience with AI coding assistants such as Cursor, Copilot, or Codex for refactoring, debugging, and testing.
Familiarity with LLM-powered tools for engineering workflows, data exploration, and experiment analysis.
Skills & tools Machine Learning
Natural Language Processing (NLP)
Large Language Models (LLMs)
Web Crawling and Scraping
Data Engineering
Agentic Coding Tools
Recommendation Systems
Practical notes Relocation assistance is not provided for this position.
Pinterest uses artificial intelligence to assist in the applicant screening process.
Candidates are evaluated on their foundational skills and ability to collaborate with AI.

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📌 Sr. Machine Learning Engineer, Content Shopping (Ontario)
🏢 Pinterest
📍 Ontario