Staff Machine Learning Engineer
Core
Design and implement large-scale recommendation systems for Reddit's Notifications product to deliver personalized content via push, email, and in-app channels.
Role type
Staff Machine Learning Engineer (Recommendation Systems)
Builds
Next-generation notification relevance system serving 126M+ daily active users
Domain
Social Media / Recommendation Systems / Generative AI
Deliverable
production ML models
Required skills
Large-scale recommendation systems, LLM integration, Generative AI, PyTorch, TensorFlow, Python, Golang
Preferred skills
State-of-the-art model architectures, Production Agentic AI frameworks
Technologies
PyTorch, TensorFlow, Python, Golang, LLMs
Responsibilities
Drive strategy and architecture for targeting, budget optimization, retrieval, and ranking; Deploy ML models and integrate LLMs; Ensure robust monitoring and product integration; Collaborate with ML, Product, Infrastructure, and DS teams.
Seniority
Staff, technical leader & strategy