Applied Scientist Intern (Recommendation AI Lab) - 2026 Start (PhD)
San Jose, California, United States
OnsiteInternship
TikTok: Global short-form video hosting and social media platform.
Must be a PhD student in CS or related field with modeling experience in ads/search/recommenders or NLP/CV, strong algorithms and programming (Python or C/C++), and research/publication experience.
Institute of Foundation Models: Develops open-source frontier-class AI foundation models and research.
Currently pursuing or recently completed a Master's or PhD in CS, Data Science, AI, Applied Math, Statistics or related; skills in dataset preparation, model design, testing, and analysis.
Applied Deep Learning PhD Research Intern, Reinforcement Learning for LLMs - Fall 2026
Santa Clara, California, United States
$30-$94/hrOnsiteFull Time, Internship
NVIDIANASDAQ: NVDA: Designs GPU-accelerated computing and artificial intelligence hardware.
Pursuing a PhD in AI/ML or related field; strong RL and NLP background; excellent Python and PyTorch skills; comfortable with large-scale training pipelines.
San Jose or Los Angeles or Singapore or New York City or London or Dublin or Paris or Berlin or Dubai or Jakarta or Seoul or Tokyo
OnsiteInternship
TikTok: Global short-form video hosting and social media platform.
Currently pursuing an undergraduate or master's degree in a quantitative field; knowledge of applied statistics and AI/ML concepts; strong structured thinking; English and Chinese communication skills.
Applied Scientist Intern - Trust and Safety (Multimodal Foundation Model) - Global Frontier Tech Recruitment Program - 2027 Start (PhD)
San Jose, California, United States
OnsiteInternship
TikTok: Global short-form video hosting and social media platform.
Currently pursuing a PhD in CS/AI/Data Science; strong LLM and multimodal ML knowledge; proficiency in Python, Rust, or C++; experience with PyTorch and distributed training; familiarity with MoE, RL, PEFT, Langchain a plus.
CrowdStrikeNASDAQ: CRWD: Provides cloud-native endpoint protection and cybersecurity services.
Strong C++ and Windows kernel experience, deep OS internals knowledge, debugging memory and performance issues, shipping major features, and experience applying AI to improve decisions and workflows.