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Applied Scientist, Search, E-Commerce Alliance

Seattle, United States of America💼 Full-time🗓 2026-09-28

Core

Design and implement machine learning models to improve search and recommendation systems for TikTok's e-commerce platform, serving merchants and creators.

Role type

Applied Scientist (Search & Recommendation)

Builds

Search systems, recommendation engines, and seller center tools for TikTok e-commerce

Domain

E-commerce, Search, Information Retrieval

Deliverable

production ML models

Required skills

Machine learning, deep learning, data mining, artificial intelligence, Python, C++, Java, GO, search algorithms, information retrieval, ranking systems

Preferred skills

Natural Language Processing (NLP), modeling/algorithms competition records, programming competition records, recommendation systems, computational advertising, E-commerce search systems

Responsibilities

Develop and implement advanced machine learning algorithms for search and recommendation systems, define scope and design end-to-end ML models, analyze large-scale data to identify search system improvements, create and iterate on ML models to optimize search functions, present complex findings to non-technical audiences

Seniority

Mid-to-Senior, hands-on IC

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