Roblox

Roblox is seeking a PhD Intern to conduct cutting-edge research in AI, machine learning, and 3D technologies. The intern will drive projects from ideation to experimentation, production, or publication, focusing on areas like generative modeling, multimodal technologies, agentic AI, foundational models, and NLP. The role involves translating research into production-ready features and enhancing user experience, safety, and creativity on the Roblox platform.

Roblox is seeking a Data Scientist for their Foundation AI team, focusing on evaluating and optimizing user-facing Generative AI systems. The role involves developing evaluation frameworks, running experiments, defining success metrics, building automated systems, and conducting applied research. The ideal candidate will have a PhD, strong technical skills in SQL and Python, expertise in experimentation and causal inference, and familiarity with GenAI models and evaluation methods. Experience with model training lifecycle (fine-tuning, RLHF, synthetic data) and a track record of applied research or publications are highly valued. The role is primarily focused on the evaluation gate (L5) for GenAI features, with a secondary focus on fine-tuning and RLHF methods (L2).