Research Scientist Intern (TikTok Recommendation-LLMs, RL, GenAI) - 2026 Start (PhD)

Join TikTok’s US Core Recommendation Team as a PhD Intern to develop next-generation recommender systems. You’ll research end-to-end generative recommendation pipelines, model ultra-long user behavior sequences, and integrate LLMs and multimodal data for more effective content discovery. The role includes analyzing large-scale user and content data, and participating in deployment and evaluation to improve recommendation precision, diversity, and engagement.