Research Scientist Intern (TikTok Recommendation-LLMs, RL, GenAI) - 2026 Start (PhD)
TikTokSan Jose, California, United States
Posted April 13, 2026
Full Time
About the Company
TikTok's mission is to elevate personalized content discovery and user experiences to unprecedented heights.
Job Description
As a PhD student, you will be part of TikTok's US Core Recommendation Team, developing the next generation of recommendation systems, including cutting-edge technologies that shape the way hundreds of millions of people discover content. Your work will focus on enhancing user experience by delivering accurate, personalized, and engaging content recommendations. You will have the opportunity to delve into several groundbreaking directions, including end-to-end generative large recommendation systems, ultra-long sequence modeling of user lifecycle behavior, and integrating LLM and multimodal technologies for recommendation.
Requirements
- Currently pursuing a PhD degree in Computer Science, Electrical Engineering, Statistics, or a related field
- Strong theoretical foundation and hands-on research experience in relevant areas
- Proficiency in Python and familiarity with ML frameworks such as PyTorch or TensorFlow
- Solid foundation in data structures, algorithms, and analytical and problem solving skills