Applied Scientist Intern - Trust and Safety (Multimodal Foundation Model) - Global Frontier Tech Recruitment Program - 2027 Start (PhD)

Build frontier multimodal trust & safety models and systems to protect users from negative content. Work on multimodal moderation foundation models (large-scale MoE training, cross-modal alignment, synthetic data generation) and agentic moderation systems using reinforcement learning for multi-step decision-making, tool ecosystems, and interpretable closed-loop reasoning. Tackle challenges like training stability, routing optimization, context engineering, GraphRAG retrieval, and adversarial robustness across 200+ languages.