TikTok
Machine Learning Engineer, TikTok Content Recommendation (Ecosystem & Cold-Start)
San Jose, California · Full-time · Posted Oct 28, 2026
- Experience
- 2+ years of related work experience.
- Education
- Bachelor degree or above in computer science or a related major.
About the job
Build and optimize TikTok content recommendation systems to improve user experience, platform security, and the health and growth of its content ecosystem.
What you'll do
- Build recommendation systems and deliver end-to-end machine learning solutions for product challenges.
- Own and optimize machine learning algorithms and infrastructure to improve recommendation performance.
- Collaborate across teams on product strategies and solutions for important markets.
What they ask for
- Bachelor's degree or above in computer science or a related major.
- 2+ years of related work experience.
- Strong software development experience with C++, Python, or another programming language.
- Experience in at least one of applied machine learning, machine learning infrastructure, large-scale recommendation systems, or market-facing machine learning products.
Tools
C++, Python
AI focus
Applied machine learning and deep learning for recommendation, including areas such as multi-task learning, multimodal technology, reinforcement learning, causal inference, and graph neural networks.
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