Principal/Senior Machine Learning Scientist - Search and Discovery

Overview Roblox is hiring a Principal/Senior Machine Learning Scientist for Search and Discovery in San Mateo, CA. The role focuses on large-scale ML, recommendation systems, and LLM/VLM-based search and discovery experiences. 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 understanding and natural language understanding - Balance research with practical product integration - Collaborate with other teams using a community-first approach - Communicate with the industry and communities when applicable Requirements - 7+ years of experience for principal or 4+ years for senior in scalable machine learning solutions - Experience with transformer-based model training, inference, and product integration - Ability to break down product requirements into iterative deliverable stages - BS, MS, or PhD in Computer Science or a related discipline, or equivalent experience - Experience initiating and facilitating challenging technical decisions across multiple teams and organizations - Strong user-focused and strategic problem-solving mindset Benefits - Eligible for equity compensation - Full-time employees are eligible for benefits - Headquarters roles in San Mateo are onsite Tuesday, Wednesday, and Thursday, with optional Monday and Friday presence - Annual base salary range: $278,530 to $345,040 USD Source https://careers.roblox.com/jobs/7655346?gh_jid=7655346