Reddit

Machine Learning Manager, Feed Ecosystems

Reddit$253K — $354K *
US-AnywhereRemote in United States
Consumer Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 2+ years of experience leading high-performing ML teams
  • Hands-on experience with large-scale production ML systems, especially recommender systems
  • Strong understanding of recommender systems and ecosystem dynamics
  • Ability to develop and communicate a strategic technical vision
  • Passion for creating responsible AI systems that enhance user experience and ecosystem health
  • Exceptional communication skills for cross-functional collaboration

Responsibilities

  • Define the technical vision and roadmap for Feed Ecosystems aligned with company goals
  • Coach team members to enhance their skills and contributions
  • Collaborate with cross-functional teams to identify opportunities and set expectations
  • Oversee the design and optimization of ML systems for content distribution and quality
  • Establish measures for content quality and community contribution
  • Work with platform teams to create scalable AI systems for content discovery
  • Maintain high performance standards and responsible AI practices
  • Partner with recruiting to attract and hire talented ML engineers

Benefits

  • Comprehensive healthcare benefits and income replacement programs
  • 401k plan with employer match
  • Global benefit programs tailored to employee lifestyle needs
  • Family planning support and gender-affirming care included
  • Mental health resources and coaching benefits available
  • Flexible vacation and paid volunteer time off options
  • Generous paid parental leave policy
Full Job Description
Reddit is looking for an experienced Engineering Manager to lead our Feed Ecosystems team. In this role, you'll lead a high-impact team of Machine Learning Engineers focused on building recommendation systems that support sustainable growth across users, posts, and communities. Your team will improve relevance for new, low-signal, and logged-out users; help new posts and communities find the right audiences; and develop ML systems that balance personalization, discovery, and ecosystem quality across Reddit's 100,000+ active communities. If applying ML / AI in production to improve Reddit Relevance and strengthen Reddit's community ecosystem excites you, then you've found the right place. **Responsibilities:** - **Define Technical Vision & Strategy:** 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. - **Team Leadership & Development:** Coach and support the development of your team, constantly seeking opportunities to grow their skills and impact. - **Cross-Functional Partnership:** Work closely with product, design, data science, safety, community, ads, and platform partners to identify opportunities, set expectations, and communicate your team's work. - **Technical Execution & Delivery:** Oversee the design, development, and optimization of ML systems that improve cold-start relevance, new post and community distribution, community discovery, and feed quality. - **Quality & Ecosystem Measurement:** Help define and operationalize signals for subjective and objective quality, ensuring Feed systems optimize not only for engagement, but also for user value, community health, contribution, and long-term ecosystem outcomes. - **Platform & Infrastructure Collaboration:** Collaborate with platform and infrastructure teams to build scalable AI-powered systems that support discovery, personalization, and healthy content distribution across Reddit. - **Operational Excellence:** Maintain high standards for system performance, reliability, efficiency, and responsible AI practices in alignment with user needs and ecosystem health. - **Recruiting & Growth:** Partner with our recruiting team to attract, interview, and hire diverse and talented machine learning engineers, growing a world-class team. **Qualifications:** - **Experience Leading ML Teams:** 2+ years of experience building and managing high-performing ML or recommender-systems teams. - **Deep ML Expertise:** Hands-on experience with large-scale production ML systems, ideally including recommender systems, personalization, cold-start modeling, content understanding, or LLM-powered recommendation applications. - **Technical Domain Knowledge:** Strong understanding of recommender systems, including candidate retrieval, ranking, value modeling, ecosystem dynamics, and measurement strategies. - **Strategic Thinking:** Ability to develop and communicate a clear, compelling technical strategy across ambiguous problem spaces, balancing user relevance, community growth, content quality, safety, and business impact. - **Impact-Driven Mindset:** Passion for developing scalable, well-designed, and responsible AI systems that improve user value while supporting a healthy and sustainable content ecosystem. - **Exceptional Communication & Collaboration:** Strong interpersonal skills and a collaborative mindset, with the ability to effectively communicate complex technical topics to diverse audiences and build strong relationships with cross-functional partners. **Benefits:** - Comprehensive Healthcare Benefits and Income Replacement Programs - 401k with Employer Match - Global Benefit programs that fit your lifestyle, from workspace to professional development to caregiving support - Family Planning Support - Gender-Affirming Care - Mental Health & Coaching Benefits - Flexible Vacation & Paid Volunteer Time Off - Generous Paid Parental Leave #LI-remote, #LI-JS5 **Pay Transparency:** This job posting may span more than one career level. In addition to base salary, this job is eligible to receive equity in the form of restricted stock units, and depending on the position offered, it may also be eligible to receive a commission. Additionally, Reddit offers a wide range of benefits to U.S.-based employees, including medical, dental, and vision insurance, 401(k) program with employer match, generous time off for vacation, and parental leave. To learn more, please visit https://www.redditinc.com/careers/. To provide greater transparency to candidates, we share base salary ranges for all US-based job postings regardless of state. We set standard base pay ranges for all roles based on function, level, and country location, benchmarked against similar stage growth companies. Final offer amounts are determined by multiple factors including, skills, depth of work experience and relevant licenses/credentials, and may vary from the amounts listed below. The base salary range for this position is: $253,300-$354,600 USD In select roles and locations, the interviews will be recorded, transcribed and summarized by artificial intelligence (AI). You will have the opportunity to opt out of recording, transcription and summarization prior to any scheduled interviews. During the interview, we will collect the following categories of personal information: Identifiers, Professional and Employment-Related Information, Sensory Information (audio/video recording), and any other categories of personal information you choose to share with us. We will use this information to evaluate your application for employment or an independent contractor role, as applicable. We will not sell your personal information or disclose it to any third party for their marketing purposes. We will delete any recording of your interview promptly after making a hiring decision. For more information about how we will handle your personal information, including our retention of it, please refer to our Candidate Privacy Policy for Potential Employees and Contractors.

About Reddit

Reddit is an American social news aggregation, web content rating, and discussion website. Registered members submit content to the site such as links, text posts, images, and videos, which are then voted up or down by other members. Posts are organized by subject into user-created boards called "communities" or "subreddits", which cover topics such as news, politics, religion, science, movies, video games, music, books, sports, fitness, cooking, pets, and image-sharing. Submissions with more upvotes appear towards the top of their subreddit and, if they receive enough upvotes, ultimately on the site's front page. Although there are strict rules prohibiting harassment, it still occurs, and Reddit administrators moderate the communities and close or restrict them on occasion. Moderation is also conducted by community-specific moderators, who are not considered Reddit employees. As of September 2021, Reddit ranks as the 19th-most-visited website in the world and 7th most-visited website in the U.S., according to Alexa Internet. About 42–49.3% of its user base comes from the United States, followed by the United Kingdom at 7.9–8.2% and Canada at 5.2–7.8%. Twenty-two percent of U.S. adults aged 18 to 29 years, and 14 percent of U.S. adults aged 30 to 49 years, regularly use Reddit. Reddit was founded by University of Virginia roommates Steve Huffman and Alexis Ohanian, with Aaron Swartz, in 2005. Condé Nast Publications acquired the site in October 2006. In 2011, Reddit became an independent subsidiary of Condé Nast's parent company, Advance Publications. In October 2014, Reddit raised $50 million in a funding round led by Sam Altman and including investors Marc Andreessen, Peter Thiel, Ron Conway, Snoop Dogg, and Jared Leto. Their investment valued the company at $500 million then. In July 2017, Reddit raised $200 million for a $1.8 billion valuation, with Advance Publications remaining the majority stakeholder. In February 2019, a $300 million funding round led by Tencent brought the company's valuation to $3 billion. In August 2021, a $700 million funding round led by Fidelity Investments raised that valuation to over $10 billion.
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