451 senior scientist jobs at 116 companies in Sumner, WA
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Senior Applied Scientist
Seattle, Washington, United States
$167k-$226k/yr OnsiteFull Time
4+ YOE4+ years applied research; 3+ years ML model building; PhD or Master’s with 6+ years of experience; programming in Java, C++, Python; deep learning experience.
Python, Java, C++, PyTorch, TensorFlow, scikit-learn
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Senior Scientist
Seattle, Washington, United States
$86k-$143k/yr HybridFull Time
6+ YOE1+ MgmtBachelor's in relevant field, 6+ years' related experience with 1+ year project management, OSHA 40-hour HAZWOPER, strong technical writing, client management, and Washington MTCA knowledge.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Outlook
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Senior Applied Scientist
San Jose or Seattle
$143k-$271k/yr OnsiteFull Time
Senior ML engineer with expertise in post-training methods, model distillation, and building production-ready pipelines; strong Python programming.
Python
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Senior Applied Scientist
Seattle, Washington, United States
$140k-$175k/yr HybridFull Time
2+ YOESenior-level ML/NLP expertise, 2+ years hands-on with ML/LLM systems, cloud AI delivery, Python/Java/Go/C++ proficiency.
Python, Java, Go, C++
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Senior Data Scientist
San Jose or Seattle
$124k-$271k/yr HybridFull Time
7+ YOE7+ years in product analytics or applied data science with strong Python and SQL, production ML model development, MLOps experience, statistics and experimentation skills, and ability to communicate to senior stakeholders.
Python, SQL, MLflow, SageMaker, Vertex AI, dbt, Snowflake, BrightHire
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Sr. Data Scientist
Bellevue, Washington, United States
$124k-$191k/yr HybridFull Time
5+ YOESenior-level data scientist with 5+ years' experience (or equivalent with advanced degree/PhD), expertise in ML lifecycle, GenAI/LLM tools, distributed data processing, Python/R/SQL, and working with large-scale transaction datasets.
ChatGPT, Microsoft Copilot, Hadoop, Hive, Spark, Python, R, SQL, git, GitHub
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Sr Data Scientist - Marketing Analytics
Tukwila or Remote, Texas or Remote, California or Remote, Idaho or Remote, South Carolina or Remote, Oregon or Remote, Virginia or Remote, North Carolina or Remote, Georgia or Remote, Arizona
$91k-$169k/yr HybridFull Time
5+ YOESenior data scientist role focusing on marketing analytics; 5+ years in data science; strong business-facing analytics; Python, R, SQL proficiency.
Python, R, SQL, MLflow, Airflow, Kubeflow, Snowflake, BigQuery, Redshift, Spark
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Immunology Senior Research Scientist - Spatial Transcriptomics
Seattle, Washington, United States
$124k-$186k/yr OnsiteFull Time
2+ YOEDeep expertise in spatial transcriptomics and tissue-based molecular profiling; experimental design and data interpretation skills; proficiency in R and/or Python; PhD (or equivalent experience) in relevant discipline; ability to mentor junior scientists.
R, Python, 10x Genomics Visium, Nanostring CosMx
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Senior Lead Data Scientist
Seattle or New York City
$204k-$227k/yr OnsiteFull Time
8+ YOEMaster's or PhD in a quantitative field and 8+ years of data science experience. Requires advanced Python and SQL, complex modeling expertise, MLOps, technical leadership, strategic initiative delivery, and senior-level mentoring.
XGBoost, Python, SQL, MLOps, NLP
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Senior Scientist I, Purification Process Development
Redmond, Washington, United States
$126k-$137k/yr OnsiteFull Time
8+ YOE8+ years in purification process development or PhD with 4+ years; expertise in purification tech, cGMP transfer, DOE, data analysis; leadership experience preferred.
JMP, R, Python, Microsoft Office, Google Suite
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Senior Scientist I, Purification Process Development
Redmond, Washington, United States
$126k-$137k/yr OnsiteFull Time
8+ YOE4+ Mgmt8+ years in engineering/biochemistry with purification process development; leadership; DOE design; client/multi-site communication.
JMP, R, Python, Microsoft Excel, Google Workspace
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Senior Scientist, Drug Product Analytical Science (ASAT), Cell Therapy
Seattle or Summit
$111k-$170k/yr OnsiteFull Time
8+ YOE8+ years in analytical methods for cell therapy; expertise in bioassay, flow cytometry, molecular biology; GMP experience; method transfer/validation; strong technical writing.
Flow cytometry, Bioassay, Molecular biology, GMP
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Senior Machine Learning Scientist
Seattle or Boston or Scottsdale or Vietnam or Europe
$160k-$256k/yr HybridFull Time
8+ YOEPhD in computer science or related field, 8+ years of experience for the senior level, expertise in LLMs, computer vision, GenAI, Python, C/C++, deep learning frameworks, and robotics systems.
Python, C, C++, TensorFlow, PyTorch, Keras, ROS
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Senior Scientist, Formulation Development
Bothell, Washington, United States
$160k-$180k/yr OnsiteFull Time
5+ YOEPhD+5yrs or MS+10yrs or BS+12yrs in biopharmaceutical field; expertise in biologic formulation, protein stability, DOE, and analytical characterization; experience with regulatory CMC and GMP.
JMP, SEC-HPLC, IEX-HPLC, DLS, MFI, HIAC
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Senior Environmental Scientist
Seattle or Gig Harbor or Everett or Bellevue or Olympia
FieldFull Time
10+ YOEBachelor's in environmental science, 10 years environmental planning/compliance experience, NEPA and EIS expertise, technical field and writing skills, MS Office proficiency, GPS/GIS field experience; PWS preferred.
GPS, GIS, webmaps, Microsoft Office
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Senior Environmental Scientist
Seattle or Bellevue or Everett or Gig Harbor or Olympia
$107k-$183k/yr OnsiteFull Time
10+ YOEBachelor's in Environmental Science, 10+ years environmental planning/compliance experience, NEPA/EIS expertise, MS Office proficiency, field data collection/GPS and GIS experience, willingness to travel, PWS preferred, valid WA driver's license.
GPS units, GIS software, web maps, Microsoft Office
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Senior Data Scientist
New York City or Milwaukee or Dallas or Columbus or Kirkland or Cincinnati or Cleveland or Oklahoma City or Austin or Albany or Chicago or St. Petersburg or Hartford or Pittsburgh or St. Louis or Miami or Sacramento or Raleigh or Minneapolis or Mountain View or Scottsdale or San Francisco or Morristown or Denver or Boston or Philadelphia or Des Moines or Overland Park or Los Angeles or Charlotte or Walnut Creek or Carmel or Seattle or Houston or Arlington or Atlanta or Redmond or Bentonville or Beaverton or Nashville or Detroit or San Diego
$87k-$294k/yr HybridFull Time
6+ YOE6+ years in data science, AI, analytics, Responsible AI, or consulting; bachelor's or master's in a quantitative field; Python, SQL, machine learning, generative AI, governance, and client leadership experience.
Python, pandas, NumPy, scikit-learn, PyTorch, TensorFlow, XGBoost, SQL, MLOps, GenAIOps, LLMOps, AWS, Microsoft Azure, Google Cloud
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Senior Applied Scientist
Redmond or Mountain View
$120k-$235k/yr HybridFull Time
4+ YOEBachelor's plus 4+ years, master's plus 3+ years, or doctorate plus 1+ year in a related quantitative or computing field; production ML experience preferred; security screening required.
Windows, CPUs, GPUs, NPUs, RAG, Approximate Nearest Neighbor, Microsoft Cloud
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Distinguished, Data Scientist
Bellevue, Washington, United States
$156k-$312k/yr OnsiteFull Time
8+ YOEHands-on distinguished data scientist with extensive AI/ML experience (model development, MLOps, generative AI), strong research record, and ability to code ~80% of the time; multiple degree/experience paths accepted.
Python, Huggingface, VectorDB, Tensorflow, Pytorch, ElasticSearch, Azure, scikit learn, Spark, Scala, R, torch
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Senior Scientist, Conjugation Process Development
Bothell, Washington, United States
$94k-$156k/yr OnsiteFull Time
Degree in chemistry/biochemistry/chemical engineering or related field; direct experience with antibodies/proteins/bioconjugation; analytical protein characterization (HPLC, IEF, CE-SDS); willingness to work with potent cytotoxics; strong data analysis and communication skills.
HPLC, IEF, CE-SDS, JMP
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