Senior Staff Machine Learning Engineer, Feed Relevance

Reddit
Remote - United StatesPosted 21 January 2026

Job Description

<div class="content-intro"><div class="c-message_kit__blocks c-message_kit__blocks--rich_text"> <div class="c-message__message_blocks c-message__message_blocks--rich_text" data-qa="message-text"> <div class="p-block_kit_renderer" data-qa="block-kit-renderer"> <div class="p-block_kit_renderer__block_wrapper p-block_kit_renderer__block_wrapper--first"> <div class="p-rich_text_block"> <div class="p-rich_text_section">Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 116 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit <a class="c-link" href="http://www.redditinc.com/" target="_blank" data-stringify-link="http://redditinc.com" data-sk="tooltip_parent">www.redditinc.com</a>.</div> </div> </div> </div> </div> </div></div><p><strong>Location:<br></strong>This role is<a href="https://redditblog.com/2020/10/27/evolving-reddits-workforce/"> completely remote-friendly</a>. If you happen to live close to one of our physical office locations, our doors are open for you to come into the office as often as you'd like. </p> <p><strong>Team Description:<br></strong>We’re looking for a <strong>Senior Staff Machine Learning Engineer</strong> to join our <strong>Feed Relevance</strong> team, which is responsible for the <strong>end-to-end systems</strong> that power personalization and ranking for the main Reddit feeds. This is a critical role that blends hands-on development with technical leadership, focusing on building scalable, extensible, and highly performant personalization systems. You will be instrumental in defining the technical direction for the team, collaborating closely with Product and Engineering leadership to set the strategy, and working with other individual contributors to execute and <strong>scale our systems to serve tens of millions of users</strong>. This work will directly enable our Machine Learning Engineers (MLEs) and engineers to quickly iterate and continuously improve the user experience. You will also partner with Infra and Platform teams to inform the direction of our core infrastructure, building for the future of ML at Reddit.</p> <p><strong>Responsibilities:</strong></p> <ul> <li>Deliver on technical initiatives that have significant company-wide impact</li> <li>Set technical direction for the broader Relevance and Feeds teams at Reddit, able to identify opportunities and influence strategy across multiple orgs</li> <li>Work with management on goal setting, planning, and de-risking critical projects</li> <li>Mentor and grow Senior and Staff engineers</li> <li>Create a strong healthy engineering culture</li> </ul> <p><strong>Qualifications:</strong></p> <ul> <li>10+ years of industry experience building systems for relevance driven products</li> <li>Subject matter expert in relevance, recommendation, and ML systems; able to solve complex problems in these domains that few others can </li> <li>Deep understanding of how to build sustainable software systems at a large scale engineering organization</li> <li>Experience in influencing organizations on technical direction/best practices</li> <li>Experience working with cross-functio ... (truncated, view full listing at source)
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