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Strong fit if you ship foundational ML for ranking or ads, enjoy staff-level ownership, and want remote work on Reddit-scale consumer data rather than pure research silos.
As a Staff Machine Learning Engineer on Ads Foundational Representations at Reddit, you would typically own embedding and representation work that powers ad ranking and retrieval: prototype models, run large-scale training and evaluation, partner with ads product and infra teams, and set technical direction for how user, post, and advertiser signals are encoded for marketplace quality and safety.
The listing is Remote.
Foundational representations for ads—shared embeddings and models that support ranking, retrieval, and related marketplace quality.
Company overview on Wikipedia and the site at reddit.com.
Website: reddit.com
Reddit is an American proprietary social news aggregation and forum social media platform. Registered users 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 "subreddits". Submissions with more upvotes appear towards the top of their subreddit and, if they receive enough upvotes, ultimately on the site's front page. Reddit administrators moderate the communities. Moderation is also conducted by subreddit-specific moderators, who are unpaid…
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Staff Machine Learning Engineer, Ads Foundational Representations at reddit - Remote Full Time Position What This Role Involves The Ads Foundational Representations (AFR) team develops signals and representations of Reddit’s core entities (ads, posts, users, and so on), capturing the semantic, contextual, and behavioral information that Reddit Ads needs. We work on building embeddings to improve ad targeting, personalization, and overall user experience across the platform. Responsibilities Develop and maintain advanced machine learning models for ads representation Create and optimize embeddings for various entities within the platform Collaborate with cross-functional teams to integrate new representations into ad systems Analyze data and provide insights to improve ad performance and user engagement Conduct experiments and research to drive innovation in ads technology Who We're Looking For We are seeking a highly skilled Staff Machine Learning Engineer with experience in building and deploying machine learning models for large-scale applications. You should have a strong background in natural language processing, deep learning, and embeddings. Experience working on distributed systems and familiarity with Python, TensorFlow, or PyTorch is essential. Working at reddit Reddit has a flexible first workforce. Don’t live near our office? No worries: you can work remotely from anywhere in the UK or the Netherlands. As a remote employee, you will have access to all the tools and resources needed to succeed in your role. Applying for This Role To apply, complete your application directly on this page, or you'll be redirected to the employer's application platform to finish submitting there. Please ensure you include a detailed resume and cover letter highlighting your relevant experience with machine learning models and embeddings.
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