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TikTok

Research Scientist Intern– E-commerce Recommendation(LLM Applications) - Global Frontier Tech Recruitment Program - 2027 Start (PhD)

San Jose, California · Internship · Posted Oct 28, 2026

Education
Currently pursuing a PhD in Computer Science, Computer Engineering, or a related technical discipline.

About the job

Develop recommendation systems and multimodal foundation-model capabilities for TikTok Shop, including generative recommendations and end-to-end machine-learning solutions across livestreams, videos, and search.

What you'll do

  • Build and optimize recommendation systems and their machine-learning infrastructure.
  • Explore generative recommendation techniques, including Diffusion Models, prompt learning, and multimodal content generation.
  • Work with cross-functional teams to develop solutions and product strategies for important markets.

What they ask for

  • Currently pursuing a PhD in Computer Science, Computer Engineering, or a related technical discipline.
  • Strong foundation in machine learning and knowledge of cutting-edge AI technologies.
  • Familiarity with big data frameworks such as Hadoop, MapReduce, and Spark.
  • Experience with TensorFlow or PyTorch for model training and deployment, and understanding of mixed precision and distributed training.

Nice to have

  • Knowledge of model compression and inference acceleration, including quantization, pruning, distillation, and TensorRT optimization.
  • Expertise in computer vision and multimodality or natural language processing; publications in top-tier conferences or competition experience are also preferred.

Tools

Hadoop, MapReduce, Spark, TensorFlow, PyTorch, TensorRT, Diffusion Models

AI focus

Develop recommendation LLMs, multimodal foundation models, generative recommendations, and agent-based systems for e-commerce; address data fusion, item tokenization, evaluation, safety, and compliance.

Model-written summary · the original posting is authoritative

First seen Oct 28, 2026 · Last verified Nov 5, 2026 (UTC)