Principal/Senior Machine Learning Scientist - Search and Discovery
Core
Designing and implementing large-scale machine learning solutions for agentic search, discovery, and recommendation systems to personalize user experiences and drive content distribution on Roblox.
Role type
Principal/Senior Machine Learning Scientist (Search & Discovery)
Builds
Agentic search and discovery systems, large-scale recommendation models, LLMs and VLMs for visual and natural language understanding
Domain
Gaming platform / Recommendation systems / Large Language Models (LLMs) / Vision-Language Models (VLMs)
Deliverable
production ML models
Required skills
Transformer-based model training and inference, scalable ML solution design, product integration, technical decision making, user-centric problem solving
Preferred skills
Experience with autoregressive models, agentic search, auto-generated content (summaries, images, videos)
Technologies
LLMs, VLMs, Transformers
Responsibilities
Design and implement machine learning solutions for agentic search and discovery; Design and implement large scale recommendation models; Design and implement LLMs and VLMs for visual and natural language understanding; Balance research with practical product integration; Collaborate with teams to build community-first products
Seniority
Principal/Senior, hands-on IC
