270 sr scientist jobs at 121 companies in Lake Forest, CA
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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
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Sr Sterility Scientist
New Jersey or Plainsboro or Mansfield or Irvine or West Valley City or Añasco or Columbia or Braintree
$71k-$98k/yr HybridFull Time
10+ YOEBachelor's degree required; 10+ years sterilization/microbiology experience in medical device or pharmaceutical manufacturing; knowledge of ISO 11135/11137, FDA and EU MDR; strong SOP/protocol writing and collaboration skills.
Microsoft Office, Kaye Data loggers, thermocouples, pressure indicators
1w
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Sr. Applied Scientist, AGI
Sunnyvale or San Francisco or Los Angeles County
$192k-$260k/yr OnsiteFull Time
3+ YOERequires 3+ years building machine learning models, large-scale ML systems experience, a PhD or master's degree with 6+ years applied research, and Java, C++, or Python programming.
Java, C++, Python, Large Language Models (LLMs), Generative Artificial Intelligence (GenAI), RL Gyms
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Sr Scientist, Plasma Control
Irvine, California, United States
$120k-$145k/yr OnsiteFull Time
PhD in physics or related field; experimental plasma physics and magnetic confinement fusion experience; expertise in real-time control systems, FPGA hardware/firmware, embedded systems, and advanced AI/ML methods; leadership and strong communication.
FPGA, Embedded C, C++, Matlab, Simulink, Stateflow, Real-Time Operating Systems
1mo
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Sr Scientist - Analytical Development
Irvine, California, United States
$120k-$168k/yr HybridFull Time
4+ YOEPhD with 4+ years or MS with 8–12 years pharmaceutical/biotech experience supporting analytical development; experience with HPLC/UPLC, GC, MS/LC-MS, stability, method development/validation, regulatory CMC documentation, and CRO/CDMO oversight.
HPLC, UPLC, GC, MS, LC-MS, Karl Fischer titration, dissolution, spectroscopy, particle characterization, compendial methods
3w
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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
10h
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Temp Senior Research Associate/Sr Scientist, Formulation and Delivery Sciences
Carlsbad or Boston or Dublin
$42-$75/hr OnsiteFull Time, Temporary
2+ YOERequires BS and 5+ years of laboratory experience for Senior Research Associate or PhD and 2+ years for Senior Scientist, plus RNA-loaded LNP synthesis, nanoparticle characterization, and laboratory communication skills.
HPLC, Ribogreen, DLS, SEC
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Sr. Scientist (Innovation & Core Expansion)
El Segundo, California, United States
$103k-$155k/yr HybridFull Time
3+ YOEBachelor's in food science/engineering preferred, 3+ years R&D/product development experience, formulation and lab management skills, Microsoft Office proficiency, strong communication and project management.
Microsoft Office
4d
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Social Scientist/Biological Scientist/Physical Scientist
Salt Lake City or Seattle or Phoenix or Los Angeles or San Francisco or Denver or Washington or Miami or Atlanta or Chicago or Indianapolis or New Orleans or Boston or Minneapolis or Kansas City or Albuquerque or New York or Oklahoma City or Portland or Austin
$126k-$164k/yr OnsiteFull Time, Temporary
1+ YOEBachelor's-level science education or equivalent experience and one year of specialized experience at GS-13 level in scientific guidance, national programs, project planning, prioritization, and stakeholder engagement.
E-Verify, Microsoft Word
2w
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Sr. Scientist II- New Product Development
Irvine, California, United States
$106k-$138k/yr OnsiteFull Time
BS in science/engineering required; extensive experience in mammalian cell culture, bioreactor scale-up, process development, cross-functional project management, and scientific communication.
2mo
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Sr. Data Scientist (Irvine, CA, US)
Irvine, California, United States
$114k-$220k/yr OnsiteFull Time
8+ YOEBS + 8 years in ML/CS/EE/applied math (PhD preferred); strong ML/DL (CNNs, transformers, time-series, probabilistic methods); Python and PyTorch/TensorFlow/Scikit-learn; statistics, optimization, model evaluation; cross-team collaboration.
Python, PyTorch, TensorFlow, Scikit-learn, Airflow, MLflow
1d
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Sr. Data Scientist- AI Model Development
Redlands, California, United States
$96k-$164k/yr OnsiteFull Time
5+ YOERequires 5+ years in software development, machine learning engineering, or data science; applied ML and transformer expertise; LoRA/QLoRA experience; and a bachelor's degree in a related field.
PyTorch, LoRA, QLoRA, ONNX Runtime, LlamaSharp, ArcGIS
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Sr. Scientist II, R&D (Plant-Based Beverages)
Los Angeles or Bakersfield
$120k-$145k/yr OnsiteFull Time
7+ YOEM.S. or Ph.D. in food science/chemistry or related,7+ years food/beverage product development,DOE and pilot plant experience,knowledge of ingredient functionality,food safety/GMP/HACCP familiarity.
Design of Experiments (DOE)
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Sr P&C Data Scientist
Omaha or New York City or Houston or Albany or Los Angeles or Chicago
$92k-$160k/yr OnsiteFull Time
5+ YOEBachelor's degree in a quantitative field, 5+ years relevant experience, advanced proficiency with SQL and Python or R, P&C insurance pricing/analytics experience preferred, strong analytical and communication skills.
SQL, Python, R
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Sr Scientist - Analytical Development
Irvine, California, United States
$120k-$168k/yr HybridFull Time
4+ YOEPhD (4+ yrs) or MS (8–12 yrs) in a relevant scientific discipline; experience with analytical method development/validation, CMC/regulatory support, leadership of external labs, and advanced analytical techniques.
HPLC, UPLC, GC, MS, LC-MS, Karl Fischer titration
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Sr. Scientist, Regulatory Liaison
North Wales or Rahway or United States or Puerto Rico or San Francisco or Los Angeles
$117k-$184k/yr HybridFull Time
2+ YOEBachelor's degree in a relevant science field and at least 2 years of regulatory, quality, clinical, pharmacovigilance, research, manufacturing, or related experience. Requires global regulatory knowledge and strong analytical, communication, and collaboration skills.
2d
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Clinical Laboratory Scientist II
Glendale, California, United States
$52-$77/hr OnsitePart Time
5+ YOERequires a California Clinical Laboratory Scientist license and at least 5 years of acute care laboratory experience across 2–3 sections, or 7+ years across 1–2 sections.
3d
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Senior Scientist
Carlsbad, California, United States
$78k-$117k/yr OnsiteFull Time
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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Senior Scientist
Carlsbad, California, United States
$78k-$117k/yr OnsiteFull Time
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
3mo
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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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