Reddit, Inc.
501 - 1000 employees
Founded 2005
💼 Consulting
📣 Marketing
📱 Media
Consulting • Marketing • Media
Reddit, Inc. is a social media platform that acts as a hub for thousands of communities, where users can engage in diverse conversations ranging from breaking news to niche interests. It enables users to post, comment, and vote on content, fostering a vibrant online community. Millions of people globally connect and share their passions on Reddit, creating a dynamic environment for authentic human interaction.
Staff Machine Learning Engineer, Ads Foundational Representations
🕒 June 19
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Reddit, Inc.
501 - 1000 employees
Founded 2005
💼 Consulting
📣 Marketing
📱 Media
Consulting • Marketing • Media
Reddit, Inc. is a social media platform that acts as a hub for thousands of communities, where users can engage in diverse conversations ranging from breaking news to niche interests. It enables users to post, comment, and vote on content, fostering a vibrant online community. Millions of people globally connect and share their passions on Reddit, creating a dynamic environment for authentic human interaction.
📋 Description
• Develop signals and representations of Reddit’s core entities for Reddit Ads • Set the technical direction of multiple team pillars • Lead cross-functional machine learning projects end to end, from business gap analysis to engineering execution • Provide technical leadership and mentorship to MLEs, drive design reviews, establish best practices, and maintain quality standards • Develop technical strategy for content-based embeddings and relevance for Ads • Develop and iterate on embedding models, including aggregation pipelines, two-tower architectures, and sequence models • Work with local and third-party LLMs/VLMs to extract representations, develop evaluation methodologies, prompt-tune and fine-tune large models • Build data-processing and inference pipelines • Evaluate features through internal benchmarks, recommender-system offline metrics, and online experiments • Ensure ML-system reliability, scalability, and performance through automated tests, monitoring, and model-management best practices • Participate in modeling and coding reviews • Collaborate with cross-functional teams to translate business requirements into technical solutions
🎯 Requirements
• 7+ years of hands-on experience with the full lifecycle of designing, training, evaluating, testing, and deploying industry-level models • Demonstrated Staff-level technical leadership: mentoring engineers, driving standards and bar raising, leading complex cross-functional projects from requirements and design to cross-team/functional alignment and execution without direct people-management authority • Excellent communication skills, with the ability to translate complex technical concepts to different audiences, both verbally and in writing • Strong track record of working on content rich NLP/CV problems at scale, and using embeddings as a tool to solve them • Established data-driven approach for ML system development • Familiarity with the Ads domain and/or Search/Recommender systems • Experience with mainstream DL frameworks: PyTorch or TensorFlow • Preferred: Experience with Python, PyTorch, Airflow, BigQuery, Ray, Kubernetes, Kafka, and GCP • Preferred: Hands-on experience with using, fine-tuning, or building LLMs
🏖️ Benefits
• 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 • Private Pension plan with Employer-matching • 100% employer-sponsored group medical plan • Income Replacement Programs • Flexible Vacation & Paid Volunteer Time Off • Generous Paid Parental Leave • Opportunity to opt out of interview recording, transcription and summarization by AI
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