50 ai research scientist jobs at 38 companies in Vacaville, CA
PromotedHiringCafe
Founding Machine Learning / AI Search Engineer
Cupertino, CA, US
$160k-$310k/yr On-SiteFull Time
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
1mo
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Lead AI Research Scientist
San Francisco, California, United States
$357k/yr OnsiteFull Time
5+ YOELead AI research scientist to define a 24-month roadmap, mentor 10+ researchers, publish papers, and partner to productionize prototypes.
PyTorch, JAX, LLM frameworks, CUDA
2mo
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AI Research Scientist
San Francisco, California, United States
OnsiteFull Time
Strong ML fundamentals; experience training large models; RL/RLHF/RLAIF; ability to work across research and engineering.
1mo
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AI Research Scientist, Audio-Visual Understanding, FAIR
Menlo Park or New York City or San Francisco
$154k-$217k/yr HybridFull Time
PhD in AI/CS or related; Bachelor's in CS/CE or equivalent; industry/postdoc/research experience; ML/AI fundamentals; Python experience; data analysis; work authorization.
Python, Machine Learning, Data Analysis, Research, Programming
2w
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Staff AI research scientist
San Francisco or Seattle or New York City or Austin or Chicago or London
$234k-$296k/yr HybridFull Time
7+ YOE7+ years ML research experience with LLM pre-/post-training, strong publication record, Ph.D. or equivalent, expert in post-training methods (SFT, RLHF, RLAIF, DPO), Python and PyTorch/JAX proficiency, experience shipping production models.
Python, PyTorch, JAX
2w
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Senior AI Research Scientist – Foundation Models & Agentic AI
Charlotte or San Francisco or West Des Moines or Irving or Tempe or Saint Louis or Minneapolis
$139k-$260k/yr HybridFull Time
4+ YOEMaster's degree in a quantitative field and 4+ years quantitative analytics experience; expertise in foundation models, LLMs, agentic AI, modern ML frameworks, GPU infra, and a strong research publication/engineering record.
GPT-4, BERT, LLaMA, Claude, PyTorch, Hugging Face, TensorFlow, GitHub Copilot, AWS, GCP
6d
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Senior/Principal AI Research Scientist
San Francisco, California, United States
$210k-$350k/yr OnsiteFull Time
5+ YOE5+ years ML research experience; fluency in PyTorch or Jax; experience with large-scale training and tools (e.g., Ray, Megatron-LM); expertise in EDA, feature engineering, model development/deployment; strong programming skills.
PyTorch, Jax, Ray, verl, Megatron-LM
1d
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AI Research Scientist/Manager - Spatial Reasoning
San Mateo or San Francisco or California
$200k-$385k/yr OnsiteFull Time
Conduct research in spatial reasoning, 3D/geometric understanding, and physical reasoning; fluent in Python and ML stacks such as PyTorch or JAX; strong research/engineering record; experience with CAD/point clouds/meshes a plus.
Python, PyTorch, JAX, CAD
3w
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AI Research Scientist (Robot Learning)
San Francisco or Zurich
OnsiteFull Time
3+ YOEPhD-level background in CS/Data Science/Robotics (or equivalent), 3+ years training generative models, 4+ years Python development, project supervision experience, and fluent English.
Python, ROS2
3mo
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Research Scientist
San Francisco or San Jose
$121k-$239k/yr OnsiteFull Time
PhD in Computer Science, AI/ML or related fields; strong publications; excellent communication and teamwork.
Python, PyTorch, TensorFlow, CUDA, JAX, Large-scale training
1mo
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Research Scientist
San Francisco or New York
$100k-$300k/yr OnsiteFull Time
Extensive experience in automated reasoning, AI for code analysis, MSc/PhD in CS, publications or artifacts, independent work, mission-driven.
1d
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ML Research Scientist (MLRS) - Generative AI
San Francisco or New York City
$165k-$259k/yr HybridFull Time
Industry research experience (post-degree), demonstrated research impact (publications or released models), proficiency in Python and modern ML frameworks, strong interdisciplinary communication, and experience collaborating on multi-person research projects.
Python, PyTorch, JAX
2mo
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Principal Research Scientist - AI Scaling & Optimization
San Francisco or Mountain View
$270k-$350k/yr OnsiteFull Time
Lead a research team focused on foundation model efficiency, scalable ML systems, and optimization; strong Python and PyTorch programming; proven research impact.
Python, PyTorch
2w
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People Research Data Scientist, AI Fairness & Bias
San Francisco or New York City or Seattle or Washington
$198k-$220k/yr HybridFull Time
Experienced data scientist or applied researcher with deep expertise in algorithmic fairness, bias measurement, evaluation design, and strong proficiency in Python/R and SQL; able to design audits, build evaluation pipelines, and advise stakeholders.
Python, R, SQL, Fairlearn, AI Fairness 360
1mo
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Research Scientist - Frontier Benchmarks
Redwood City or Palo Alto or San Francisco
$200k-$325k/yr HybridFull Time
Experience in AI/ML evaluation, NLP or related fields; strong communication; PhD preferred; cross-functional collaboration; startup environment.
Python, Pytorch, TensorFlow, NLP
1mo
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Founding Research Scientist, Human Simulation
San Francisco, California, United States
OnsiteFull Time
Strong research track record in AI, LLMs, post-training, RLHF, behavioral modeling, or simulation. Founding role; ability to define problems, scope programs, and communicate clearly.
Machine Learning, Natural Language Processing, RLHF, Evaluation, Simulation
2mo
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Data Scientist / AI Scientist – AI for Aging Research – Zhou lab
Novato, California, United States
$80k-$130k/yr OnsiteFull Time
BS/MS/PhD in a quantitative field; strong background in computer vision, deep learning, AI methods; experience in analyzing complex datasets; ability to work in multidisciplinary team; strong communication skills.
Python, Machine Learning, Deep Learning, Computer Vision, Image Analysis, Diffusion Models, Multimodal / Foundation Models, Generative AI, Data Analysis, Big Data, Research Computing
2mo
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AI/ML Scientist
Boston or San Francisco
OnsiteFull Time
5+ YOEPhD in ML/Computational Biology/Bioinformatics/CS; 5+ years ML research; expert PyTorch/JAX; protein design expertise; leadership/mentoring experience; strong statistics and HPC knowledge; excellent communication.
PyTorch, JAX, Transformer models, Molecular dynamics, High-performance computing
15h
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Senior Research Scientist, Superconducting Digital Electronics, Quantum AI
Goleta or Cambridge or Mountain View or Seattle or San Francisco or Washington
$174k-$253k/yr OnsiteFull Time
Master's in EE/Physics or equivalent; experience with superconductor logic families and tape-out of superconducting IC chips; one or more published papers; proficiency with CAD and electromagnetic simulation tools.
6d
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Scientist II, Translational Research
Redwood City or Boston or New York City or Chicago or San Francisco or Los Angeles or California or Colorado or Illinois or New York
$90k-$150k/yr OnsiteFull Time
4+ YOEPhD preferred, 4+ years drug development experience using genomic and multimodal data, strong computational biology and AI knowledge, proficiency in R/Python/ SQ, client-facing experience, and ability to travel ~25%.
R, Python, SQ, Pandas, NumPy, SciPy, Scikit-learn, Jupyter Notebooks, RStudio, tidyverse, ggplot, Git, matplotlib, seaborn, HTML5, CSS3, JavaScript, D3, Plot.ly, Flask, Dask, Docker, AWS
1w
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Research Scientist – Embodied AI - Job Detail | Careers Marketplace - Siemens
Berkeley, California, United States
$105k-$180k/yr OnsiteFull Time
M.Sc. or Ph.D. in CS/EE/Robotics, professional-level C++ and Python, experience building and deploying ML models on robotic systems, knowledge of Transformers/VLMs/Diffusion Models, hands-on robotics and sim-to-real experience, English proficiency, and legal U.S. work authorization without sponsorship.
C++, Python, Transformers, VLMs, VLAs, Diffusion Models, RFMs, Isaac Sim, Mujoco, Gazebo, ROS, ROS2
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