Senior Machine Learning Engineer Reddit

Build production machine learning systems at Reddit using Python, ranking, recommendations, and large-scale model deployment for millions of users.As a Senior Machine Learning Engineer, you will design systems across Reddit’s Consumer and Ads organizations. Apply deep learning, search relevance, feature engineering, and modern frameworks including PyTorch or TensorFlow. Own machine learning solutions from problem definition through training, evaluation, deployment, monitoring, and automated retraining. Partner with Product, Data Science, Infrastructure, and Engineering teams to translate complex problems into technical systems. Your work may support personalized discovery, advertising optimization, content understanding, or real-time decisions.Key Responsibilities:
Design and deploy production-grade machine learning systems at scaleOwn modeling, feature engineering, evaluation, deployment, and monitoringBuild reliable pipelines and model serving infrastructureImprove ranking, recommendations, search relevance, and prediction metricsApply deep learning, graph, transformer, and LLM techniquesRequirements:
Three to five-plus years building production machine learning systemsStrong programming skills in Python, Java, Go, or similarKnowledge of statistical learning and deep learning architecturesHands-on experience with PyTorch or TensorFlowExperience designing scalable pipelines and serving infrastructureBring production machine learning, software engineering, and relevance expertise to Reddit’s large-scale discovery and advertising systems.
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