69 principal scientist jobs at 21 companies in Gilroy, CA
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Principal Scientist, Cancer Pharmacology, Translational Research
Redwood City, California, United States
$190k-$238k/yr OnsiteFull Time
5+ YOEPhD in Pharmacology or Cancer Biology; 5+ years in oncology drug discovery; leadership and PK/PD expertise.
1mo
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Principal Scientist – Data Insights & Hypothesis Design
Chicago or Redwood City or New York City or California or New York
$150k-$200k/yr HybridFull Time
6+ YOEPhD in NGS-related field,6+ years industry experience,domain expertise in oncology/neurology/immunology,large-scale clinico-genomic analysis,SQL/Python/R proficiency,and experience translating data into production products.
SQL, R, Python, Tempus Data Model (TDM)
3mo
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Principal AI Scientist - GTM Tech
Mountain View, California, United States
$274k-$370k/yr OnsiteFull Time
3+ YOEPhD/MS in a quantitative field; 3+ years leading AI/ML; strong statistics; hands-on programming in ML/NLP; 6+ years with data manipulation and general-purpose languages; proven influencer and leader.
Python, Scala, SQL, R, ML pipelines, NLP
1w
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Principal Applied Scientist, Ads Optimization, FAIM
Palo Alto or Seattle
$229k-$309k/yr OnsiteFull Time
5+ YOEPhD in a technical field, 5+ years in predictive modeling and analysis, programming experience, ambiguity-solving skills, and experience leading and developing scientists.
Java, C++, Python
2mo
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Principal Applied Scientist
Redmond or Mountain View
$143k-$275k/yr HybridFull Time
3+ YOEAdvanced degree in CS, EE, statistics, econometrics or related with 3+–6+ years relevant experience; expertise in recommender/LLM systems, Python, PyTorch/TensorFlow, evaluation/experimentation, content‑quality and safety.
LLMs, RAG, Python, PyTorch, TensorFlow, Microsoft Azure ML, Microsoft Kusto, Microsoft Synapse, Microsoft Azure AI Foundry
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Principal Applied Scientist
San Jose, California, United States
$206k-$388k/yr OnsiteFull Time
10+ YOEPhD or MS in CS/AI/ML (PhD preferred), 10+ years building and deploying large-scale AI/ML systems, deep expertise in knowledge graphs, IR, NLP/intent modeling, multimodal learning, and LLM/RAG systems.
knowledge graphs, LLMs, multimodal embeddings, foundation models, GNNs, RAG, graph embeddings, Adobe Acrobat Studio, Adobe Express, Adobe Firefly, Creative Cloud, Adobe Experience Platform, Adobe Experience Manager, GenStudio
3d
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(USA) Principal, Data Scientist
Sunnyvale, California, United States
$143k-$286k/yr OnsiteFull Time
3+ YOEBachelor's degree and 5 years, master's degree and 3 years, or 7 years of analytics experience; expertise in search, recommendations, ML systems, Python, Scala, PyTorch, and Spark.
PyTorch, Transformer, RAG, Python, Scala, Spark, LLMs, Generative AI, RLHF, scikit learn, tensorflow, torch, Web Content Accessibility Guidelines (WCAG) 2.2 AA
3w
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Principal Research Scientist, Robotics
Mountain View, California, United States
$235k-$366k/yr OnsiteFull Time
Samsung Research America: A research organization advancing robotics and artificial intelligence through applied R&D and collaboration.
11+ YOEPhD in CS/EE/Robotics or equivalent, 11+ years post-grad robotics R&D, strong publication record, experience with robotics, ML, planning, computer vision, and implementing behaviors on real robots.
PyTorch, TensorFlow, C++, ROS, CUDA
1w
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(USA) Principal, Data Scientist
Sunnyvale or Bentonville
$143k-$286k/yr OnsiteFull Time
5+ YOERequires a bachelor's degree and 5 years, master's degree and 3 years, or 7 years of analytics experience; expertise in machine learning, statistical analysis, Python, SQL, MLOps, experimentation, and cloud platforms.
Python, SQL, Spark, Scala, R, scikit-learn, TensorFlow, Torch
1w
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Principal Applied Scientist - Robotics
Santa Clara or United States
$126k-$264k/yr OnsiteFull Time
3+ YOERequires 3–5+ years of experience and advanced applied research expertise in AI, robotics, perception, machine learning, and embodied AI, with hands-on coding and production deployment experience.
ML, AI
3d
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Principal Bioinformatics Scientist I
Santa Clara, California, United States
$121k-$225k/yr OnsiteFull Time
4+ YOEBachelor's plus 9 years, master's plus 7 years, or Ph.D. plus 4 years of related experience; CAP/CLIA diagnostic validation experience; Python, R, C++, Linux/Bash, Nextflow, and containerization expertise.
Nextflow, Docker, Singularity, Git, Python, R, C++, Linux, Bash
2mo
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Principal Applied Data Scientist - Search and Browse (NLP, Vector Search, LLMs)
Sunnyvale or Brooklyn Park
$168k-$356k/yr HybridFull Time
8+ YOEPhD or MS in CS/Statistics/Applied Math/Physics; 8+ years ML/AI experience; semantic retrieval, vector search, LLMs; Python; architecture leadership; cross-functional influence.
Python, LLMs, NLP, Vector search, RAG, Transformers, VertexAI
5d
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Principal Clinical Research Scientist
Jacksonville or Milpitas or Irvine
$117k-$201k/yr HybridFull Time
5+ YOEAdvanced scientific degree, 5+ years of ophthalmic clinical research experience, clinical program leadership, study design, technical writing, biostatistics knowledge, and cross-functional influence.
5d
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Principal Clinical Research Scientist
Jacksonville or Milpitas or Irvine
$117k-$201k/yr HybridFull Time
5+ YOEAdvanced scientific degree and 5+ years of ophthalmic clinical research experience required, with clinical study leadership, study design, technical writing, biostatistics knowledge, and cross-functional influence.
Clinical Study Reports (CSRs), Good Clinical Practice (GCP)
6d
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Principal Data Scientist, Google Search
Mountain View or Kirkland or New York City or Seattle or San Francisco
$307k-$427k/yr OnsiteFull Time
15+ YOEBachelor’s degree or equivalent practical experience; 15 years in data science or quantitative fields; experience using data insights to improve products and engineering; advanced degree and product-building experience preferred.
AI
1mo
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Principal Data Scientist - Recommendation & Personalization Systems
McLean or New York City or San Jose
$162k-$201k/yr OnsiteFull Time
3+ YOEAdvanced quantitative degree and multi-year analytics experience (Bachelor+5, Master+3, or PhD), expertise in Python/ML, experience with AWS, Spark, SQL; strong communication and product orientation.
Python, Conda, AWS, H2O, Spark, Scala, R, SQL
1mo
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Principal Data Scientist - Recommendation & Personalization Systems
McLean or San Jose or New York City
$162k-$201k/yr OnsiteFull Time
5+ YOEBachelor's plus 5 years, master's or quantitative MBA plus 3 years, or PhD in a quantitative field; preferred experience includes Python, machine learning, SQL, and AWS.
Python, Conda, AWS, H2O, Spark, Scala, R, SQL
1mo
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Principal Research Scientist, Siri Innovation Studio
Cupertino, California, United States
OnsiteFull Time
Advanced ML modeling experience, prototyping and deploying AI features, collaborating across software/hardware/design, strong research background, and focus on user-centered private AI.
iOS, iPadOS, macOS, watchOS, visionOS, Dictation
1w
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Principal Research Scientist, Robot Foundation Model
Sunnyvale, California, United States
$407k-$512k/yr HybridFull Time
5+ YOEDeep machine learning expertise, scalable training, top-tier research publications, strong coding and ML framework skills, independent research leadership, and experience translating research into working systems.
vision-language models, video models, robot policies, foundation models, reinforcement learning, imitation learning, behavioral cloning, distributed training, ICRA, CoRL, CVPR, NeurIPS, ICML, ICLR
1w
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Principal Research Scientist, Robot Foundation Model
Sunnyvale, California, United States
$407k-$512k/yr HybridFull Time
5+ YOEDeep machine learning expertise, scalable training experience, strong research publications, modern ML framework coding skills, independent research leadership, and experience translating research into working systems.
Vision-Language-Action Models (VLAs), World and Action Models (WAMs), reinforcement learning, imitation learning, behavioral cloning, video generation, distributed training infrastructure, machine learning frameworks, ICRA, CoRL, CVPR, NeurIPS, ICML, ICLR
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