326 machine learning scientist jobs at 142 companies in California
2mo
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Machine Learning Scientist
Culver City, California, United States
OnsiteFull Time
5+ YOEMaster's or PhD in a quantitative field, 5+ years building and deploying production ML models; expertise in deep learning, reinforcement learning, recommendation/ranking systems; strong Python and SQL skills; excellent communication.
Python, SQL
1mo
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Machine Learning Scientist
San Francisco, California, United States
$180k-$270k/yr OnsiteFull Time
PhD or equivalent experience in ML/computational neuroscience, expertise in deep learning, proficiency in PyTorch/TensorFlow and Python, experience deploying models, strong communication and collaboration skills.
PyTorch, TensorFlow, Python
2w
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Machine Learning Scientist 5 - Localization
New York City or Los Gatos
OnsiteFull Time
4+ YOE4+ years applying causal inference and machine learning; proficiency in R, Python, SQL, causal inference, supervised learning, and LLM evaluation; strong communication, collaboration, business acumen, and independent judgment.
R, Python, SQL, Machine Learning, Causal Inference, Supervised Learning, LLM Evaluation
3w
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Research Scientist, Machine Learning
South San Francisco, California, United States
$200k-$250k/yr OnsiteFull Time
Strong machine learning fundamentals, modern empirical ML expertise, model training experience, and familiarity with PyTorch or other ML frameworks; no formal education required.
PyTorch
1mo
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Staff Machine Learning Scientist
Brisbane, California, United States
$200k-$284k/yr HybridFull Time
6+ YOEPhD in quantitative field with 6+ years post-PhD industry/postdoc experience in applied ML/DL; demonstrated publications or impact; proficiency in Python/R/C/C++/Java; experience with deep learning, supervised/self-supervised/contrastive learning.
Python, R, Java, C, C++, PyTorch, TensorFlow, JAX, Hugging Face, TensorBoard, MLflow, Weights & Biases, Docker, GCP, Microsoft Azure, AWS
2w
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Applied Machine Learning Scientist
San Francisco, California, United States
$140k-$165k/yr OnsiteFull Time
2+ YOEBachelor's degree in a relevant field, 2+ years developing machine learning models, software engineering fundamentals, Python ML and data science proficiency, and successful academic or industrial ML project execution.
Python, AWS, NLP, LLM
3mo
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Machine Learning Scientist, Reinforcement Learning
Emeryville or Hybrid (2-3 days on-site)
$200k-$330k/yr HybridFull Time
PhD or equivalent in CS/ML/NLP/Applied Math/Computational Biology/Statistics; experience with ML/RL; publications; PyTorch or Jax experience.
PyTorch, Jax
4w
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Senior Machine Learning Scientist
Dallas or Oxford or Irvine or San Diego or Austin
$112k-$130k/yr HybridFull Time
3+ YOEAdvanced degree or equivalent experience; 3+ years industry experience; strong Python and ML framework skills; production ML, cloud (GCP/AWS/Azure), distributed computing, and statistics; strong communication.
Python, PyTorch, scikit-learn, GCP, AWS, Azure, Apache Spark, Ray, Dask, Hadoop
3w
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Principal, Machine Learning Scientist
San Mateo, California, United States
$254k-$290k/yr RemoteFull Time
5+ YOEPhD in ML/CS or hard sciences with 5+ years post-PhD experience, strong ML research record, Python/PyTorch proficiency, biomedical domain knowledge, and leadership/mentorship experience.
Python, PyTorch, LIMS++, git, Next-Generation Sequencing (NGS), AWS
2mo
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Machine Learning Scientist - Physics-Informed
San Diego, California, United States
$135k-$203k/yr OnsiteFull Time
3+ YOEPhD (3+ yrs) or Master's (6+ yrs) in math/physics/engineering; extensive experience in physics-informed ML, model integration, data pipelines, optimization and deep learning; strong Python and software skills.
Python, PyTorch, JAX, C/C++, MATLAB, MLflow, Apache Spark, Microsoft Azure Kubernetes Service (AKS), Google Distributed Cloud Edge (GDCE), Microsoft Azure Databricks
2w
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Senior Machine Learning Scientist - Ad Campaign Optimization
Cupertino, California, United States
OnsiteFull Time
Experience developing and implementing machine learning or optimization algorithms, ideally in advertising, recommendations, or search relevance; strong understanding of scalable architectures and Agile environments.
2mo
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Machine Learning Scientist – Clinical Prediction
Boston or San Diego or United States
$148k-$186k/yr HybridFull Time
3+ YOEMS in chemistry/bio/chemical engineering or PhD/equivalent; 3+ years relevant experience; strong Python and deep-learning fine-tuning skills; clinical dataset experience; data science and engineering best practices; familiarity with Docker, CUDA, Kubernetes, and Weights & Biases.
Python, Docker, CUDA, Kubernetes, Weights & Biases, HPC
5d
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Machine Learning Research Scientist, Evaluations
San Francisco or Seattle or New York City
$181k-$226k/yr OnsiteFull Time
Ph.D. or master's in a related field; deep learning, reinforcement learning, fine-tuning, post-training, LLM evaluation, benchmark development, research publication, communication, and customer-facing experience.
LLM, Agents, SFT, RLHF
2mo
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Machine Learning Scientist III - Personalization
San Jose, California, United States
$149k-$209k/yr OnsiteFull Time
5+ YOEBachelor's in CS/ML/Statistics/Math (or equivalent), 5+ years building production ML solutions, ownership of model quality and experimentation, strong ML and software engineering skills.
2mo
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Machine Learning Scientist - Quantum Chemistry
Welwyn or Basel or San Francisco
OnsiteFull Time
PhD or equivalent in a quantitative field; deep ML expertise; hands-on quantum chemistry experience (Psi4, PySCF, ORCA, xTB); fluent in Python and PyTorch or JAX; publication record; experience building scalable ML pipelines and synthetic datasets.
Psi4, PySCF, ORCA, xTB, Python, PyTorch, JAX, GitHub, GitLab
2mo
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Senior Principal Machine Learning Scientist, AIBT
South San Francisco, California, United States
$203k-$377k/yr OnsiteFull Time
7+ YOEPhD in a quantitative field, 7+ years post-PhD research experience building ML methods for biology; deep expertise in foundation models, sequence modeling, regulatory genomics, and proven scientific leadership and publication record.
2w
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Machine Learning Data Scientist, Forecasting
San Francisco, California, United States
$230k-$385k/yr HybridFull Time
7+ YOEAdvanced quantitative degree, 7+ years of applied data science experience, forecasting and predictive modeling expertise, Python and SQL proficiency, production model monitoring, and strong executive communication skills.
Python, SQL, scikit-learn, PyTorch, TensorFlow, TimeGPT
2mo
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Applied Scientist / Machine Learning Engineer
Sunnyvale, California, United States
$312k-$370k/yr HybridFull Time
2+ YOEMasters (with ~6+ years) or PhD (with 2+ years) in CS/ML/robotics/math; strong ML and software fundamentals; production ML experience; fluency in Python and a deep-learning framework (PyTorch); experience with large-scale data and foundation-model workflows.
Python, PyTorch, turbopuffer, Milvus, Ray Data, Daft, Spark, Lance, Iceberg
2mo
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Machine Learning/Computer Vision Research Scientist
Santa Clara, California, United States
$164k-$194k/yr OnsiteFull Time
2+ YOEPhD (or equivalent) in CS/Engineering + 2 years ML experience; research in ML/DL/CV, generative AI; programming in Python/R/C/C++/Java; experience with PyTorch, TensorFlow, scikit-learn; publication or patent record.
Python, R, PyTorch, TensorFlow, scikit-learn, C, C++, Java
2mo
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Senior Machine Learning Scientist I, Drug Discovery Analytics
Redwood City, California, United States
$229k-$269k/yr HybridFull Time
6+ YOEPhD in a quantitative field; 6+ years applying ML to scientific datasets; expertise in Python and scientific libraries; experience with PyTorch/TensorFlow/scikit-learn, model development/validation, and noisy experimental data.
Python, NumPy, Pandas, SciPy, PyTorch, TensorFlow, scikit-learn, RDKit, OpenEye
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