(General Hire) Research Scientist Intern (TikTok Recommendation) - 2026 Start (PhD)

Responsibilities

• Build industry-leading recommendation system, improving user experience, content ecosystem and platform security;
• Deliver end-to-end machine learning solution to address critical product challenges;
• Own the full stack machine learning system and optimize algorithms and infrastructure to improve recommendation performance;
• Work with cross-functional teams to design product strategies and build solutions to grow TikTok in important markets.

Qualifications

• Minimum Qualifications: PhD degree in the field of computer science or a related technical discipline;
• Proficient coding skills and strong algorithm & data structure using C++/Python or other programming language;
• Experienced in Machine Learning, familiar with at least one DeepLearning framework, e.g. PyTorch, Tensorflow;
• Experienced in one or more of the following areas, e.g. NLP, CV, Recommender System, and Machine Learning, etc;
• Effective communication and teamwork skills;

Preferred Qualifications

• Authors of published papers in accredited academia conferences is an advantage;
• Winners of algorithm and machine learning competitions such as ACM and Kaggle is an advantage.