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296 senior scientist jobs at 130 companies in Costa Mesa, CA

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Senior Scientist, Biologics Formulation
El Segundo, California, United States
$140k-$180k/yr OnsiteFull Time
Varda Space Industries
Varda Space Industries: Develops in-orbit manufacturing platforms and reentry capsules for pharmaceuticals.
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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3mo
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Senior Scientist / Engineer
Los Angeles, California, United States
OnsiteFull Time
Arcturus
Arcturus: Develops carbon nanomaterial-infused metal composites for high-performance conductors.
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
Pasadena or Sudbury or Chicago or Tampa or Phoenix
$105k-$120k/yr HybridFull Time
Advocates for Human Potential
Advocates for Human Potential: Provides consulting and research services for human services systems.
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
Caltech
Caltech: Provides university-level education and scientific research services.
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
Carlsbad, California, United States
$78k-$117k/yr OnsiteFull Time
Merck KGaA, Darmstadt, Germany
Merck KGaA, Darmstadt, GermanyFrankfurt Stock Exchange: MRK: A science and technology in healthcare, life sciences, and electronics.
8+ YOEBachelor’s degree in chemistry, biochemistry, biology, or life sciences plus 8+ years in GMP or QC laboratory settings; expertise in analytical testing, method validation, cGMP, and ICH guidelines.
qPCR, ddPCR, HPLC, CE-SDS, ELISA, HPLC/UPLC
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2mo
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Senior Scientist
Monrovia, California, United States
$90k-$120k/yr OnsiteFull Time
ChromoLogic
ChromoLogic: Develops and commercializes disruptive medical, aerospace, and security technologies.
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
Carlsbad, California, United States
$78k-$117k/yr OnsiteFull Time
Merck
MerckXETRA: MRK: A science and technology providing healthcare, life science, and electronics solutions.
8+ YOEBachelor's degree in chemistry, biochemistry, or life science and 8+ years in GMP or QC laboratories; analytical method validation, cGMP, ICH, QA/QC, and biologics experience preferred.
qPCR, ddPCR, HPLC, CE-SDS, ELISA, UPLC, SOPs, CAPAs
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Senior Medical Laboratory Scientist
Burbank, California, United States
$60-$94/hr OnsiteFull Time
Providence
Providence: Provides comprehensive healthcare services through hospitals, clinics, and health plans.
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
The Lundquist Institute
The Lundquist Institute: Conducts independent biomedical research and clinical trials for healthcare.
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
Providence
Providence: Non-profit health system providing comprehensive medical and social services.
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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2mo
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Senior AI/ML Scientist, Planetary Science
Long Beach or New York City
$154k-$211k/yr HybridFull Time
Relativity Space
Relativity Space: Designing and manufacturing 3D-printed rockets and launch vehicles.
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 Data Scientist
Irvine, California, United States
$108k-$153k/yr OnsiteFull Time
Edwards Lifesciences
Edwards LifesciencesNYSE: EW: Designs and manufactures medical devices for structural heart disease.
4+ YOEBachelor's in a related field plus 4 years (or Master’s plus 3) experience; expertise in clinical/product domain modeling, statistical methods, and regulatory-grade model documentation.
statsmodels, lifelines, scikit-survival, PyMC, SHAP, Captum, Python, SQL, SAS, Microsoft Power BI, Tableau Prep, PyTorch, TensorFlow, MLflow, MONAI, pydicom, SimpleITK, DoWhy, EconML, Optuna, Ray Tune, R, JAX
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Senior Data Scientist
Los Angeles, California, United States
$139k-$185k/yr HybridFull Time
Taboola
TaboolaNASDAQ: TBLA: Provides content recommendations and native advertising for digital publishers.
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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Senior Data Scientist
Los Angeles, California, United States
$167k-$251k/yr HybridFull Time
Sony Interactive Entertainment
Sony Interactive EntertainmentNYSE: SONY: Provides PlayStation gaming hardware, software, and digital network services.
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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20h
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SENIOR DATA SCIENTIST
Los Angeles County or Los Angeles
$10k-$13k/mo HybridFull Time, Temporary
County of Los Angeles
County of Los Angeles: Provides public services and healthcare to Los Angeles County residents.
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
Burbank or New York City
$124k-$186k/yr OnsiteFull Time
Paramount
ParamountNASDAQ: PSKY: Produces and distributes media content across global entertainment platforms.
5+ YOE5+ years data science experience with strong statistical modeling, Python and SQL coding, econometrics or natural experimentation experience, and ability to communicate results to non-technical stakeholders.
Python, SQL, Google Cloud Platform (BigQuery, ML Engine, and APIs)
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2mo
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Senior Data Scientist
Canada or United States or San Francisco or Los Angeles
$170k-$200k/yr RemoteFull Time
Northbeam
Northbeam: Marketing intelligence and attribution platform for eCommerce brands.
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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2w
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Senior Data Scientist
Los Angeles, California, United States
$185k/yr OnsiteFull Time
FlightStory
FlightStory: A media and investment scaling creator-led brands.
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
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Senior Research Scientist
Orange, California, United States
$85k-$90k/yr OnsiteFull Time
Chapman University
Chapman University: A private university offering undergraduate and graduate degree programs.
1+ YOEPh.D. in philosophy/psychology/neuroscience, 1+ year postdoctoral research, 5+ peer-reviewed publications, proficiency with MATLAB/JASP/R, EEG experience, strong writing and presentation skills.
MATLAB, JASP, R, EEG
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Senior Data Scientist
Albany or Arlington or Atlanta or Austin or Beaverton or Bentonville or Boston or Carmel or Charlotte or Chicago or Cincinnati or Cleveland or Columbus or Culver City or Denver or Des Moines or Detroit or Hartford or Houston or Irving or Kirkland or Miami or Milwaukee or Minneapolis or Morristown or Mountain View or Nashville or New York City or Oklahoma City or Overland Park or Philadelphia or Pittsburgh or Raleigh or Redmond or Sacramento or San Diego or San Francisco or Scottsdale or Seattle or St. Louis or St. Petersburg or Walnut Creek or United States or Los Angeles
$80k-$294k/yr HybridFull Time
Accenture
AccentureNYSE: ACN: Global professional services firm providing consulting and technology solutions.
6+ YOERequires 6+ years in data science, AI, analytics, Responsible AI, consulting, governance, or related fields; quantitative bachelor's or master's degree; Python, SQL, ML, AI governance, and client leadership expertise.
Python, pandas, NumPy, scikit-learn, PyTorch, TensorFlow, XGBoost, SQL, AWS, Microsoft Azure, Google Cloud, MLOps, GenAIOps, LLMOps, APIs, Microsoft Word
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