TikTok
Senior Machine Learning Engineer - Search Recommendation, E-commerce
San Jose, California · Senior · Full-time · Posted Oct 28, 2026
- Experience
- 5+ years of work experience in machine learning.
- Education
- Bachelor or advanced degree in computer science or a related technical discipline.
About the job
Develops and improves TikTok E-commerce search recommendation models and services, from recall through final-stage ranking, to enhance search traffic and the user shopping experience.
What you'll do
- Optimize hyperscale recommender systems across the end-to-end ranking workflow.
- Advance short-text and general recommendation technology, particularly its interaction with NLP.
- Guide and mentor teammates.
What they ask for
- 5+ years of work experience in machine learning.
- Domain knowledge or work experience in modern Recommendation, Search, Advertisement, or E-commerce.
- Bachelor or advanced degree in computer science or a related technical discipline.
- Excellent coding skills and solid knowledge of data structures and algorithms.
Tools
machine learning, NLP, CV
AI focus
Applies machine learning, NLP, computer vision, recommendation, and multimodal technology to e-commerce search recommendations.
Model-written summary · the original posting is authoritative