10 applied scientist intern jobs at 4 companies in Berkeley, CA

PromotedHiringCafe
Founding Machine Learning / AI Search Engineer
Cupertino, CA, US
$160k-$310k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Build the ML and AI search behind HiringCafe — ranking, recommenders, retrieval, and LLM agents that surface jobs people would never find on their own.
Python, PyTorch, Elasticsearch, LLMs
1w
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Applied Scientist Intern (Recommendation AI Lab) - 2026 Start (PhD)
San Jose, California, United States
OnsiteInternship
TikTok
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.
LLMs, Python, C, C++
2mo
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Research Scientist Intern PhD, Applied Research
Bellevue or Menlo Park or New York
$8k-$12k/mo OnsiteInternship
Meta
MetaNASDAQ: META: Develops social networking platforms and virtual reality technologies.
PhD in CS/AI/vision/audio or related field; work authorization; ML/NLP/vision experience; programming in Python/C/C++/Java; deep learning frameworks (PyTorch/TensorFlow).
Python, C++, C, Java, PyTorch, TensorFlow
1w
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Applied Scientist Intern - Business Integrity - Global Frontier Tech Recruitment Program - 2027 Start (PhD)
San Jose, California, United States
OnsiteInternship
TikTok
TikTok: Global short-form video hosting and social media platform.
PhD student in CS/Computer Engineering/related with modeling experience (ads, recommender, NLP/CV, multimodal), strong LLM algorithm knowledge, and top-tier publications record.
LLMs, AIGC
1w
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Applied Scientist Intern - Monetization Technology - Global Frontier Tech Recruitment Program - 2027 Start (PhD)
San Jose, California, United States
OnsiteInternship
TikTok
TikTok: Global short-form video hosting and social media platform.
PhD student in CS or related, modeling experience in ads/search/recommender/NLP/CV, strong algorithms and programming (C/C++, Python), research track record preferred.
C/C++, Python
1w
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Applied Scientist Intern - Monetization GenAI - Global Frontier Tech Recruitment Program - 2027 Start (PhD)
San Jose, California, United States
OnsiteInternship
TikTok
TikTok: Global short-form video hosting and social media platform.
PhD student in CS or related field, modeling experience in ads/recommendation/NLP/CV/multimodal, strong LLM algorithm knowledge and publications in top conferences.
1w
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Applied Scientist Intern - Trust and Safety (Multimodal Foundation Model) - Global Frontier Tech Recruitment Program - 2027 Start (PhD)
San Jose, California, United States
OnsiteInternship
TikTok
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.
Python, Rust, C++, PyTorch, deepspeed, megatron, vllm, PEFT, MoE, CoT, Langchain, GPU
1w
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Research Scientist Intern (Applied Machine Learning-Enterprise) - 2026 Start (PhD)
San Jose, California, United States
OnsiteIntern
ByteDance
ByteDance: Developing AI-driven content platforms and mobile applications.
PhD student in CS or related field; proficiency with PyTorch or TensorFlow; programming in C++, Python, or Go; strong software engineering, teamwork, and communication skills.
PyTorch, TensorFlow, C++, Python, Go
1w
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Research Scientist Intern (Applied Machine Learning-Enterprise) - 2026 Summer (BS/MS)
San Jose, California, United States
OnsiteInternship
ByteDance
ByteDance: Developing AI-driven content platforms and mobile applications.
Currently pursuing BS/MS in CS or related, proficient with PyTorch or TensorFlow, programming in C++, Python or Go, strong coding and teamwork skills, must have work authorization at hire.
PyTorch, TensorFlow, C++, Python, Go
1w
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Staff Data Scientist, Finance & Business Ops
San Francisco or United States
$165k-$339k/yr RemoteFull Time
Pinterest
PinterestNYSE: PINS: Visual discovery engine for finding inspiration and creative ideas.
8+ YOE8+ years in data science/analytics or applied ML, strong time-series forecasting and quantitative skills, advanced SQL and Python, experience building internal web tools and analytics, AI/LLM applied experience, executive communication.
SQL, Python, JavaScript, TypeScript, Superset, Tableau, Looker
1w
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Senior Data Scientist, Model Risk & Data Analytics, Internal Audit - AMS
San Jose, California, United States
$137k-$293k/yr OnsiteFull Time
TikTok
TikTok: Global short-form video hosting and social media platform.
5+ YOEBachelor's in a quantitative field,5+ years applied data science/ML experience with LLMs and traditional ML,proficiency in SQL and Python,experience auditing/validating models and defining performance and fairness metrics.
SQL, Python, Hugging Face Transformers, TensorFlow, PyTorch, scikit-learn, LLMAuditor, GPT, BERT, T5, PaLM, AWS, GCP, Azure, Snowflake, Hadoop, Flink, MapReduce