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TikTok

Machine Learning Engineer Graduate (E-Commerce Recommendation Foundation) - 2027 Start

San Jose, California · Full-time · Posted Oct 28, 2026

Education
Bachelor's degree in Computer Science, Electrical Engineering, Mathematics, Statistics, or a related discipline.

About the job

Build and train Recommendation Foundation Models and generative recommendation systems for TikTok E-commerce, including multimodal item tokenization and LLM-native recommendation.

What you'll do

  • Participate in pre-training, mid-training, and post-training of Recommendation Foundation Models.
  • Design and train multimodal semantic tokenizers that encode recommendation item content into discrete tokens.
  • Build recommendation systems spanning retrieval, ranking, and end-to-end generative recommendation.

What they ask for

  • Completing or recently completed a Bachelor's degree in Computer Science, Electrical Engineering, Mathematics, Statistics, or a related discipline.
  • Solid foundation in machine learning and deep learning, with strong interest in LLMs and generative recommendation.
  • Proficiency in Python and experience with deep learning frameworks such as PyTorch.
  • Self-driven, with a strong research mindset and solid engineering skills.

Nice to have

  • Experience with pre-training, mid-training, or post-training of LLMs or Foundation Models.
  • Research or project experience in generative recommendation, LLM-native recommendation, or multimodal semantic tokenization; relevant publications or major technical competition achievements.

Tools

Python, PyTorch, LLMs, VLMs

AI focus

Develop Recommendation Foundation Models and generative recommendation by integrating LLMs/VLMs, multimodal understanding, and reinforcement learning; train multimodal semantic tokenizers and incorporate recommendation tasks into LLM training.

Model-written summary · the original posting is authoritative

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