R

Reddit

Runs online communities for discussion and advice

Machine Learning Manager - Feed Ecosystems

Applied Machine LearningConfirmed live in the last 24 hours
Full-timeRemote in USARemote

About the Job

Requirements

  • At least 2 years of experience building and managing high-performing machine learning or recommender-systems teams.
  • Hands-on experience with large-scale production machine learning systems, ideally including recommender systems, personalization, cold-start modeling, content understanding, or large language model-powered recommendation applications.
  • Strong understanding of recommender systems, including candidate retrieval, ranking, value modeling, ecosystem dynamics, and measurement strategies.
  • Ability to develop and communicate a clear technical strategy across ambiguous problem spaces, balancing user relevance, community growth, content quality, safety, and business impact.
  • Passion for developing scalable, well-designed, and responsible artificial intelligence systems that improve user value while supporting a healthy and sustainable content ecosystem.
  • Ability to communicate complex technical topics to diverse audiences and build strong relationships with cross-functional partners.

Responsibilities

  • Define the technical vision and long-term roadmap for Feed Ecosystems, aligning recommender-system investments with Reddit’s goals around user growth, contribution, community health, and high-quality discovery.
  • Coach and support the development of the team, seeking opportunities to grow team members’ skills and impact.
  • Work with product, design, data science, safety, community, advertising, and platform partners to identify opportunities, set expectations, and communicate the team’s work.
  • Oversee the design, development, and optimization of machine learning systems that improve cold-start relevance, new post and community distribution, community discovery, and feed quality.
  • Help define and operationalize subjective and objective quality signals, ensuring Feed systems optimize for user value, community health, contribution, and long-term ecosystem outcomes in addition to engagement.
  • Collaborate with platform and infrastructure teams to build scalable artificial intelligence-powered systems that support discovery, personalization, and healthy content distribution across Reddit.
  • Maintain high standards for system performance, reliability, efficiency, and responsible artificial intelligence practices in alignment with user needs and ecosystem health.
  • Partner with the recruiting team to attract, interview, and hire machine learning engineers.

About the Company

Reddit

Runs online communities for discussion and advice

Reddit runs a website and mobile app where people discuss interests, ask questions, share links, and post photos or videos. Its user-created communities, called subreddits, cover topics from news and entertainment to hobbies, local recommendations, and technical help. People reply in comment threads and vote posts or comments up or down, affecting which discussions appear prominently in each community and on their feeds. Reddit earns most of its revenue from advertising, while its Reddit Pro tools help businesses and publishers share content and track conversations about their brands. Reddit was founded in 2005 and is headquartered in San Francisco, California.

Company size
1,001-5,000
Company stage
IPO
Headquarters
San Francisco, CA
Founded
2005

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