TikTok
Applied Scientist, Search, E-Commerce Alliance
Seattle, Washington · Full-time · Posted Oct 28, 2026
- Experience
- Extensive experience required; no number of years stated.
- Education
- PhD, Master or Bachelor's degree in Computer Science, Statistics, Mathematics, or related quantitative field.
About the job
Develop and improve machine-learning-powered search and recommendation systems for TikTok’s e-commerce platform, using large-scale data and collaborating across teams.
What you'll do
- Design, build, test, implement, and iterate on end-to-end machine learning models for search and recommendation.
- Analyze large-scale data to identify search improvements and optimize user experience.
- Collaborate with cross-functional teams and communicate findings to influence business decisions.
What they ask for
- Degree in Computer Science, Statistics, Mathematics, or a related quantitative field (PhD, Master’s, or Bachelor’s).
- Extensive experience in machine learning, deep learning, data mining, or artificial intelligence.
- Strong programming skills in Python, C++, Java, GO, or similar.
- Strong knowledge of search algorithms, information retrieval, and ranking systems.
Nice to have
- Experience with Natural Language Processing (NLP) techniques.
- Experience with recommendation systems, computational advertising, search engines, or E-commerce search systems.
Tools
Python, C++, Java, GO
AI focus
Apply machine learning and related methods to improve e-commerce search and recommendation systems.
Model-written summary · the original posting is authoritative