We’re looking for a Senior Machine Learning Manager to lead and grow the Ads Retrieval team. This person will combine deep ML technical expertise, people leadership, and strategic vision to build retrieval solutions that scale with Reddit’s growth and complexity. You’ll oversee the development of models and infrastructure that directly impact revenue, user satisfaction, and advertiser outcomes. You’ll play a foundational role in the success of Reddit’s Ads business—leading the team that powers relevance and performance at scale. This is a high-impact leadership opportunity for someone passionate about cutting-edge ML, information retrieval, and marketplace systems.
The Ads Retrieval team is responsible for identifying and sourcing the most relevant, engaging, and high-quality ads from an enormous candidate pool—often in the millions to billions. This team ensures a strong top-of-funnel supply of ad candidates for downstream ranking, balancing relevance to users and performance for advertisers. Our systems support large-scale ad indexing, querying, and candidate sourcing, and our ML models play a critical role in ensuring the most relevant ads are retrieved efficiently. Retrieval is foundational to our success in both revenue and user experience—and we’re just getting started.
Responsibilities:
Set Technical Vision & Strategy
Oversee ML Model and System Development
Build & Scale a High-Impact Team
Collaborate Cross-Functionally
Drive Operational Excellence
Requirements:
Technical & Domain Expertise
Leadership Attributes
Benefits:
#LI-Remote