TikTok
Research Scientist, TikTok E-Commerce Recommendation
San Jose, California · Full-time · Posted Oct 28, 2026
- Experience
- 3+ years in one of the listed or related fields.
- Education
- MS/PhD in Computer Science or a related technical field, or equivalent industrial research experience.
About the job
Conduct research and build large-scale machine-learning recommendation systems for TikTok E-commerce, modeling user interests and improving recommendations across business scenarios.
What you'll do
- Research machine-learning retrieval and recommendation algorithms.
- Build and scale e-commerce recommendation algorithms and systems for commodities, live streams, and short videos.
- Model user interests and apply machine learning to scenarios including search ranking, language and video understanding, and trust and safety.
What they ask for
- MS/PhD in Computer Science or a related technical field, or equivalent industrial research experience.
- 3+ years of experience in recommendation algorithms, online advertising, information retrieval, natural language processing, machine learning, large-scale data mining, or a related field.
Nice to have
- Familiarity with at least one mainstream deep-learning framework, such as TensorFlow or PyTorch.
- Passion for solving complex and challenging problems.
Tools
TensorFlow, PyTorch
AI focus
Research and develop machine-learning algorithms and large-scale recommendation systems, including user-interest modeling and applications to search ranking, natural language and video understanding, and trust and safety.
Model-written summary · the original posting is authoritative