Machine Learning Algorithm Research Engineer

Build next-generation recommendation and personalization systems for TikTok across user growth, live streaming, and e-commerce. Work on projects addressing cold-start, real-time timeliness, interest diversity, and complex multi-stage recommendation chains by leveraging large language models, graph neural networks, and end-to-end large model techniques. Collaborate with R&D experts to improve accuracy, generalization, and user experience at massive scale.