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Tech Lead - TikTok Ecommerce Recommendation Algo

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

Core

Lead the design, build, and optimization of large-scale e-commerce recommendation algorithms for TikTok Shop, focusing on user engagement and conversion via live-streaming and short videos.

Role type

Senior IC machine-learning engineer (recommendation systems) with team leadership

Builds

Large-scale recommendation algorithm pipelines, user interest models, and predictive models for candidate generation and ranking

Domain

E-commerce, machine learning, large-scale data mining

Deliverable

production ML models

Required skills

Recommendation systems, user interest modeling, predictive modeling, real-time data pipelines, feature engineering, model optimization, team leadership

Preferred skills

Online advertising, information retrieval, natural language processing

Technologies

Large-scale machine learning frameworks

Responsibilities

Design and optimize large-scale recommendation pipelines; build user interest models; develop predictive models for CTR and conversion; manage the global e-commerce recommendation team; collaborate with product and strategy teams

Seniority

Senior, hands-on IC with team leadership

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