88 senior scientist jobs at 39 companies in Mentone, CA
2mo
Save
Mark Applied
Hide
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.
1mo
Save
Mark Applied
Hide
Senior Data Scientist
Irvine, California, United States
$108k-$153k/yr OnsiteFull Time
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
1mo
Save
Mark Applied
Hide
Senior Research Scientist
Orange, California, United States
$85k-$90k/yr OnsiteFull Time
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
2w
Save
Mark Applied
Hide
Principal Clinical Scientist
Aliso Viejo, California, United States
$148k-$194k/yr OnsiteFull Time
5+ YOEMaster's degree in relevant science/medicine, 5+ years clinical research scientist experience, GCP knowledge, clinical protocol development, strong writing and communication, analytical skills.
PubMed, MedLine
2w
Save
Mark Applied
Hide
SENIOR ENVIRONMENTAL SCIENTIST (SPECIALIST)
Sacramento or Riverside
$8k-$11k/mo HybridFull Time
Oversee escalated waste tire enforcement, develop enforcement actions, conduct inspections, prepare reports; must have valid California driver's license/REAL ID and ability to travel.
Microsoft Word, Microsoft Excel, Microsoft SharePoint, PowerPoint, Microsoft Teams
1mo
Save
Mark Applied
Hide
Senior Environmental Scientist III
Fullerton, California, United States
$83k-$125k/yr OnsiteFull Time
5+ YOEB.S. in environmental science/engineering, 5+ years experience, CPSWQ or CPESC and QSD/QSP and QISP certifications, valid California driver’s license, ability to lift up to 50 lbs, proficient in Microsoft Office, strong analytical and communication skills.
Microsoft Office Suite, ArcGIS
1mo
Save
Mark Applied
Hide
Senior Principal Data Scientist, AEC
California or Washington or New York or British Columbia or Ontario or Irvine
$159k-$286k/yr RemoteFull Time
10+ YOE10+ years in data science/applied ML focused on product analytics and user behavior modeling; expertise in predictive modeling, instrumentation, AI evaluation, and experimentation; strong communication and technical leadership.
LLMs, MCP, RAG architectures, LLM-as-a-Judge, A/B testing
2mo
Save
Mark Applied
Hide
Staff Scientist
Irvine, California, United States
$131k-$219k/yr OnsiteFull Time
5+ YOEBachelor's in a scientific discipline with 7+ years (or MS with 5+ years, PhD with 2+ years) in medical device/GxP-regulated industry; microbiology/fermentation experience, method development/validation, familiarity with QSR/FDA/ISO, statistical analysis (Minitab), and process improvement (Six Sigma/Lean).
Minitab, Six Sigma, Lean, DMADVV, DMAIIC
1mo
Save
Mark Applied
Hide
Project Scientist Pool Ad - Clinical Pharmacy Practice
Irvine, California, United States
$77k-$202k/yr OnsiteFull Time
Doctorate (M.D., Ph.D., or PharmD) required; submit CV and three references (contact information only). Open recruitment pool for future Project Scientist appointments.
3d
Save
Mark Applied
Hide
Sr. Scientist/Sr. Scientist II - Pharmacology
Aliso Viejo or San Clemente or Burlington
$119k-$148k/yr OnsiteFull Time
4+ YOEPh.D. in a relevant life science discipline and 4+ years of industry experience; expertise in ocular pharmacology, study design, data interpretation, regulatory submissions, and cross-functional research collaboration.
CROs, in vitro, ex vivo, in vivo, IND, NDA, BLA
1mo
Save
Mark Applied
Hide
Artificial Intelligence Scientist IV
Los Angeles or Irvine
$208k-$354k/yr OnsiteFull Time
10+ YOEMS in CS/AI/ML required (PhD preferred), 10+ years relevant experience, expertise in LLMs, generative and agentic AI (RAG, PEFT, instruction fine-tuning, prompt engineering), transformers and deep learning, publication record, ability to collaborate with engineering and mentor scientists.
Deep Neural Networks, Large Language Models (LLMs), RAG, Transformers, Agentic AI
1mo
Save
Mark Applied
Hide
Scientist (Mass Spectrometry)
San Juan Capistrano, California, United States
$85k-$110k/yr OnsiteFull Time
BS in biology/chemistry required; 5-7 years HPLC and LC-MS/MS experience (reduced with advanced degree); ability to design, validate assays and prepare technical documentation.
HPLC, LC-MS/MS
1mo
Save
Mark Applied
Hide
Principal Scientist- Search
New York City or San Francisco or Los Angeles or Irvine or McLean or Washington
$212k-$394k/yr HybridFull Time
8+ YOEPhD and 8+ years building and deploying production AI systems; deep expertise in information retrieval, search, NLP, RAG, knowledge graphs, LLMs; strong product sense and leadership skills.
Python, PyTorch, Hugging Face, Azure ML, Azure AI Foundry, AWS SageMaker
3w
Save
Mark Applied
Hide
Scientist, Analytical Development
Tustin, California, United States
$110k-$137k/yr OnsiteFull Time
8+ YOEBS in biochemistry/chemistry/biology required, 8+ years analytical/QC biotech experience, method development and validation experience with HPLC/CE/ELISA, GMP and report/procedure writing, supervisory experience.
ELISA, HPLC, CE, SDS-PAGE, Maurice
1mo
Save
Mark Applied
Hide
Innovation Scientist
Orange, California, United States
$115k-$130k/yr OnsiteFull Time
5+ YOEBS in a relevant science, 5+ years R&D/manufacturing experience in dietary supplements, formulation and prototyping experience, strong scientific storytelling, cross-functional collaboration, and customer-facing technical support.
E-Verify
2mo
Save
Mark Applied
Hide
Staff Scientist
Irvine, California, United States
OnsiteFull Time
7+ YOEBachelor's in a scientific discipline plus 7+ years (or Master's/PhD with fewer years); experience in GxP-regulated medical device/product development, fermentation and microbiology, validation (IQ/OQ/PQ), statistical analysis (Minitab), and familiarity with QSR/FDA/ISO standards.
Minitab, Six Sigma, Lean, DMADVV, DMAIIC, IQ/OQ/PQ, ISO 13485, AAMI
3d
Save
Mark Applied
Hide
Clinical Scientist
Irvine, California, United States
$160k-$170k/yr RemoteFull Time
5+ YOEPhD, PharmD, or advanced medical/life sciences degree preferred; 5+ years in medical devices, including 2+ years writing clinical investigation plans and clinical study reports; strong clinical analysis and medical writing skills.
Microsoft Office, Adobe Acrobat
1mo
Save
Mark Applied
Hide
Senior Project Manager/Environmental Scientist
Irvine, California, United States
$85k-$145k/yr HybridFull Time
10+ YOEMinimum 10 years experience in contamination assessment and remediation, Bachelor in Geology required (Master preferred), PG preferred, project management, HSE awareness, client management, and ability to travel.
1w
Save
Mark Applied
Hide
Scientist, Quality Technical Services
Lake Forest, California, United States
OnsiteFull Time
5+ YOEBachelor's degree in a scientific discipline and 5+ years of experience in nutritional product development, reformulation, and manufacturing support in a cGMP environment; Microsoft Office and PLM proficiency required.
Microsoft Office, Product Lifecycle Management (PLM)
1w
Save
Mark Applied
Hide
Senior Machine Learning Scientist
Dallas or Oxford or Irvine or San Diego or Austin
$112k-$130k/yr HybridFull Time
3+ YOEAdvanced degree or equivalent experience; 3+ years industry experience; strong Python and ML framework skills; production ML, cloud (GCP/AWS/Azure), distributed computing, and statistics; strong communication.
Python, PyTorch, scikit-learn, GCP, AWS, Azure, Apache Spark, Ray, Dask, Hadoop
Explore Jobs