Pinterest
Sr. Machine Learning Engineer, Ads Ranking
Found: December 18, 2025
This role is based in Toronto, Canada.
Responsibilities:
- Execute the development of state-of-the-art applied machine learning projects for the ads conversion modeling team.
- Coach and mentor engineers for the conversion modeling team.
- Design features and build large-scale machine learning models to improve user ads action prediction with low latency.
- Develop new techniques for inferring user interests from online activity.
- Mine text, visual, user signals to better understand user intention.
- Work with product and sales teams to design and implement new ad products.
Requirements:
- MS or PhD degree in Computer Science, Statistics or related field.
- 3+ years of industry experience building large-scale machine learning models, with experience in ranking and recommender systems.
- Strong mathematical skills with knowledge of statistical methods.
- Cross-functional collaborator and strong communicator.
- Background in computational advertising is preferred, but not required.
In-Office Requirement:
This role will need to be in the office for in-person collaboration 1-2 times/quarter.