309 senior scientist jobs at 132 companies in Lennox, CA
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Senior Scientist, Biologics Formulation
El Segundo, California, United States
$140k-$180k/yr OnsiteFull Time
3+ YOEPhD in a relevant field; 3+ years protein formulation development; deep protein chemistry and biophysics expertise; hands-on analytics; independent in fast-paced startup; strong scientific writing.
Dynamic Light Scattering, Differential Scanning Calorimetry, Size Exclusion Chromatography, Capillary Electrophoresis, Rheology, Spectroscopy
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Senior Scientist / Engineer
Los Angeles, California, United States
OnsiteFull Time
3+ YOE3+ years in materials R&D, processing, or additive manufacturing; hands-on experimental focus; strong documentation and data analysis.
Raman spectroscopy, SEM/EDS, Optical microscopy, Electrical testing, Thermal testing, Hardness testing, CVD/LCVD, Laser processing, LPBF, DED
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Senior Scientist
Camarillo, California, United States
$132k-$169k/yr OnsiteFull Time
7+ YOEPhD in Chemical Engineering or Biotechnology (or thesis-based MSc with 7-10 yrs cell culture experience). Deep cell therapy process development experience, bioreactor and cell characterization skills, project leadership, publications, and tech transfer experience.
bioreactor, flow cytometry, cGMP
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Senior Scientist
Pasadena or Sudbury or Chicago or Tampa or Phoenix
$105k-$120k/yr HybridFull Time
5+ YOEPh.D.,5+ years leading evaluation-focused proposals and projects, expertise in substance use/rural health/criminal justice, experience with federal contracts and SAMHSA data tools.
Stata, REDCap, Dedoose, Microsoft Word, Microsoft Outlook, Microsoft PowerPoint, Microsoft Excel, citation management software
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Senior Scientist
Pasadena, California, United States
$134k-$165k/yr OnsiteFull Time
10+ YOE8+ MgmtBS in Physics, Astronomy, or Engineering; 10+ years high-precision optics experience; 8+ years mentoring; expertise in optical design, coatings, and precision optical metrology; MS/PhD preferred; MS Project experience preferred.
Microsoft Project
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Senior Scientist
Monrovia, California, United States
$90k-$120k/yr OnsiteFull Time
PhD in a relevant engineering or chemistry field; background in hollow fiber membranes, filtration, separations, or bioprocessing; experimental design, data analysis, failure analysis; lab testing and prototype experience; strong communication.
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Senior Scientist
Thousand Oaks, California, United States
$127k-$172k/yr OnsiteFull Time
4+ YOEPhD, PharmD, or MD with relevant experience; or master's degree plus 4 years, or bachelor's degree plus 6 years of related experience. Requires proteomics, mass spectrometry, computational analysis, and collaboration skills.
Orbitrap Astral, LC-MS/MS
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Senior Medical Laboratory Scientist
Burbank, California, United States
$60-$94/hr OnsiteFull Time
3+ YOEBachelor's degree, graduation from an approved medical technology school, and a California clinical laboratory scientist license or applicable specialty scientist license are required; 3 years of experience preferred.
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Senior Scientist
Torrance, California, United States
$90k-$100k/yr OnsiteFull Time
1+ YOEPhD in cell or molecular biology, 1-2 years lab experience with iPSC culture, sterile technique, directed differentiation; familiarity with Seahorse and 10X workflows; strong communication and organizational skills.
Sea horse, 10X Genomics, Chromium, Visium, Flow cytometry, FACS, Confocal microscopy
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Senior Medical Laboratory Scientist
Burbank, California, United States
$60-$94/hr OnsiteFull Time
3+ YOEBachelor's degree and graduation from an approved medical technology school required; California clinical laboratory scientist license or applicable specialty license required. Three years of experience preferred.
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Senior AI/ML Scientist, Planetary Science
Long Beach or New York City
$154k-$211k/yr HybridFull Time
3+ YOEPhD in a technical field and 3+ years of experience; expertise in transfer learning, domain adaptation, or fine-tuning; multi-modal data fusion; end-to-end problem ownership; collaboration with scientists and engineers.
Python, TensorFlow, PyTorch, scikit-learn, ML frameworks, multi-modal data fusion
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Senior Scientist, Discovery Biology
San Diego or Arizona or Puerto Rico or Los Angeles County
$132k-$159k/yr OnsiteFull Time
2+ YOEBachelor's with 7+ years, master's with 5+ years, or Ph.D. with 2+ years in life sciences or related research. Requires cancer biology, cell culture, molecular biology, and drug discovery expertise.
CRISPR, RNAi, qPCR, FACS, Windows, Microsoft Office, PRISM
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Senior Data Scientist
Canada or United States or San Francisco or Los Angeles
$170k-$200k/yr RemoteFull Time
5+ YOE5+ years building and deploying production data science/ML systems; strong statistics, causal inference, experimentation, coding/debugging, EM/production ops, and customer-facing communication; BS required, MS/PhD preferred.
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Senior Data Scientist
Los Angeles, California, United States
$167k-$251k/yr HybridFull Time
Advanced quantitative background (Master's/PhD preferred), proven experience in causal inference, forecasting, optimization and value/impact measurement; proficiency in Python, SQL and PySpark; strong stakeholder management and communication.
Python, SQL, PySpark, transformers
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Senior Data Scientist
Los Angeles, California, United States
$185k/yr OnsiteFull Time
Production ML/statistical modeling experience, strong Python and data science library skills, experience with large datasets and complex pipelines, and hands-on LLM or foundation model experience.
Python, PyTorch, TensorFlow, scikit-learn, LLMs, RAG
2w
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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 Data Scientist
Los Angeles, California, United States
$167k-$251k/yr HybridFull Time
Requires proven analytical modeling experience, optimization or operations research knowledge, causal inference, end-to-end project ownership, large-dataset expertise, stakeholder communication, Python, SQL, and a quantitative master's or PhD.
Python, SQL, PySpark
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Senior Data Scientist
Petah Tikva or Austin or New York City or Los Angeles or San Francisco or London or Berlin or Singapore or Tel Aviv
HybridFull Time
8+ YOERequires 8+ years in data science or quantitative analysis, strong experimental design and statistical/ML modeling skills, SQL and Python or R fluency, cloud-scale data experience, and excellent communication.
SQL, Python, R, Databricks, Spark
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SENIOR DATA SCIENTIST
Los Angeles County or Los Angeles
$10k-$13k/mo HybridFull Time, Temporary
2+ YOE2+ MgmtRequires 2 years of complex data science experience, or a relevant bachelor's degree with coursework and 6 years of experience including 2 years leading machine learning, predictive analytics, and data management work.
Machine Learning, Predictive Analytics, Recommender Engines, Auto Classification, NLP, statistical programming languages
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Senior Data Scientist
Los Angeles, California, United States
$139k-$185k/yr HybridFull Time
5+ YOEMaster’s degree or Ph.D. preferred in a technical field, 5+ years of Python and Java experience, ML frameworks, SQL, scalable ML systems, evaluation harnesses, testing frameworks, and distributed data systems.
Python, Java, PyTorch, TensorFlow, Spark MLlib, SQL, Cursor, Claude, GitHub Copilot, HDFS, Hadoop, Kafka, Apache Spark
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