45 physical scientist jobs at 25 companies in Pasadena, CA
6d
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Life Scientist/Environmental Engineer/Physical Scientist
Los Angeles or San Francisco
$104k-$145k/yr OnsiteFull Time
1+ YOERequires U.S. citizenship, a bachelor's or higher degree in biological, physical, or engineering sciences, and one year of specialized experience developing regulations and State Implementation Plan revisions.
State Implementation Plans (SIP), National Ambient Air Quality Standards (NAAQS), Clean Air Act, Microsoft Excel
1mo
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Clinical Lab Scientist
Anaheim, California, United States
$50-$58/hr OnsiteFull Time
2+ YOEBachelor's or doctoral degree in chemical, physical, biological, clinical laboratory science or medical technology; current California Clinical Laboratory Scientist license; ASCP preferred; ~2 years acute care lab experience preferred.
1mo
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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
6d
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Clinical Lab Scientist II - WD
Arcadia, California, United States
$53-$58/hr OnsiteFull Time
0.5+ YOEBachelor’s degree in medical technology or life or physical sciences, current state clinical laboratory scientist license, and at least 6 months of direct experience. Requires Microsoft Office proficiency.
Microsoft Word, Microsoft Excel, Microsoft Outlook
2mo
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Scientist - Plasma Diagnostics
Foothill Ranch, California, United States
$110k-$130k/yr OnsiteFull Time
PhD in plasma physics with in situ diagnostics; hands-on diagnostics experience; data analysis and reporting; programming in Python.
Langmuir probes, retarding field analyzers, fast ion loss detectors, pyrobolometers, thermo-optical arrays, DAQ systems, oscilloscopes, function generators, high-vacuum systems, Python
3w
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Research Scientist
Pasadena or United States
$100k-$135k/yr RemoteFull Time
Graduate degree in physical/environmental/earth/applied sciences, experience with methane emission sectors and remote sensing, ability to work independently and manage multiple projects.
Git
2mo
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CLINICAL LABORATORY SCIENTIST I (BLOOD BANK)
Los Angeles, California, United States
$95k-$135k/yr OnsiteFull Time
0.5+ YOESix months experience as Clinical Laboratory Scientist; CA CLS license or Limited CLS license in a qualified specialty; meet physical requirements; online filing and exam process as described.
3w
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Research Scientist
Thousand Oaks, California, United States
$91k-$121k/yr OnsiteFull Time
M.S. or Ph.D. in engineering or physics, 0–5 years relevant experience, strong heat transfer and fluid dynamics background, hands-on experimental lab experience, data analysis skills, familiarity with ANSYS Fluent/Icepak/Workbench, US citizenship required.
ANSYS Fluent, Icepak, Workbench
1mo
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Project Scientist Pool
Irvine, California, United States
$79k-$209k/yr OnsiteFull Time, Part Time
Ph.D. in physical climate, atmospheric chemistry, biogeochemistry or related field; proven research track record; submit CV, research statement, and references.
2mo
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Research Scientist, R&D (2026)
Los Angeles, California, United States
$100k-$175k/yr HybridFull Time
3+ YOEPhD or Master’s in CS/Physics/Mathematics; 3+ years R&D in graphics/physics/ML; advanced C++ with VCS and testing; strong communication; background in discrete geometry or related areas.
C++, CUDA, Metal, WebGPU
2w
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Project Scientist - Environmental Solutions
Irvine, California, United States
$60k-$75k/yr FieldFull Time
1+ YOEBachelor's in geology/environmental science/engineering, 1–3 years environmental field experience, current 40-hour HAZWOPER, valid driver’s license, ability to perform physical fieldwork, proficiency with Microsoft Word and Excel.
Microsoft Word, Microsoft Excel
1mo
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Space Photovoltaics Research Scientist
El Segundo, California, United States
$117k-$176k/yr OnsiteFull Time
8+ YOEPh.D. in a STEM field, 8+ years experience in opto-electronic materials or device physics, proficiency with electro-optical characterization techniques, data analysis/programming (Python, MATLAB, Origin), project leadership, ability to obtain U.S. security clearance.
Python, MATLAB, Origin
6d
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Computational Scientist, Quantum Energy Systems
Torrance, California, United States
OnsiteFull Time
PhD-level expertise in computational materials science, condensed-matter physics, or computational chemistry; production Python or C++ coding; simulation package fluency; and experience connecting simulations to experimental outcomes.
Python, C++, density functional theory, molecular dynamics, finite-element modeling
1w
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Project Scientist - CSST or CAC
Irvine, California, United States
$29-$45/hr FieldPart Time
2+ YOE2+ years in regulated materials/industrial hygiene, bachelor’s degree in environmental science or related field, CAC or CSST required, CIH preferred, valid driver’s license, ability to pass background/drug/physical checks.
1mo
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Senior Applied Scientist, Safe Locomotion, Compass
Pasadena, California, United States
$167k-$226k/yr OnsiteFull Time
3+ YOEPhD or Master's+6yrs, 3+ yrs applying RL to physical robots, sim-to-real expertise, strong legged-robot dynamics and control knowledge, Python and deep learning framework proficiency, experience with robotics physics simulators, publication record.
Python, PyTorch, JAX, Isaac Gym/Sim, MuJoCo, PyBullet
2mo
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Environmental Scientist I/II/III - AGSC
Redding or Sacramento or Eureka or Santa Rosa or Bakersfield or Los Angeles or Riverside or San Diego
RemoteFull Time
Bachelor’s in Physical/Environmental Sciences; CA QSP or QSD; driver license; utility project experience; MS Office proficiency.
MS Office
3w
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Staff Environmental Scientist/Engineer
Santa Ana or California
$71k-$80k/yr HybridFull Time
0+ YOEBachelor's in environmental sciences or engineering, 0–2 years environmental compliance experience, valid driver's license, Microsoft Office proficiency, strong communication, ability to perform fieldwork and physical canvassing.
Microsoft Windows, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Outlook, Adobe, Foxit, Google Earth
3w
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Process Development Principal Scientist
Thousand Oaks, California, United States
$142k-$192k/yr OnsiteFull Time
5+ YOEPhD/PharmD/MD or advanced degree with significant operations experience; deep expertise in organic/physical/solid-state chemistry, formulation and unit operations; experience mentoring, technical writing, and characterization techniques.
XRPD, DSC, TGA, SEM
1w
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Clinical Laboratory Scientist II
Inglewood, California, United States
$37-$51/hr OnsiteFull Time
2+ YOEBachelor's in biological/chemical/physical/clinical laboratory science or medical technology, California CLS license, minimum 2 years clinical laboratory experience covering all lab areas, proficiency with testing, QC, venipuncture, and LIS/POC systems.
Laboratory Information System (LIS), Point-of-Care (POC)
2mo
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Environmental Scientist I/II/III - AGSC
California or Redding or Sacramento or Eureka or Santa Rosa or Bakersfield or Los Angeles or Riverside or San Diego
$60k-$98k/yr FieldFull Time
0+ YOEBachelor's degree in physical or environmental sciences or related field, California QSP or QSD certification, utility project experience, driver's license, Microsoft Office proficiency, and technical communication skills.
Microsoft Office Suite, GIS, CAD
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