Machine Learning Engineer (Local Services Search) - 2026 Start (PhD)

The Data-Search-TikTok-Local Services team enhances local services by improving user discovery of hospitality, dining, and leisure experiences while driving ecosystem growth. They leverage large-scale machine learning to refine search and recommendation systems, focusing on personalized relevance, CTR/CVR prediction, and optimized conversion efficiency for billions of users.Responsibilities:

1. Support the local video service business to enhance user discovery of life services such as hospitality, dining, and leisure.
2. Improve the search experience in local services and promote ecosystem growth.
3. Utilize large-scale machine learning techniques in search and recommendation scenarios with billions of users to: Improve user shopping experiences & Enhance conversion efficiency.
4. Design and implement local services search algorithms across the full stack, including: Query analysis, relevance, recall, coarse ranking, fine ranking, and blended ranking. Personalized behavior modeling for relevance computation.CTR (Click-Through Rate) prediction, CVR (Conversion Rate) prediction. Vector recall and value blending.