10 materials scientist jobs at 5 companies in Fallbrook, CA

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Environmental Scientist
San Diego County, California, United States
$4k-$9k/mo OnsiteFull Time
State Controller's Office
State Controller's Office: California's fiscal controller managing state financial operations and assets.
Prepare and review environmental documents and technical studies to ensure CEQA/NEPA and regulatory compliance; possess valid driver’s license; complete required application materials and statement of qualifications.
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Assistant Project Scientist
La Jolla, California, United States
$97k-$122k/yr OnsiteFull Time
University of California
University of California: A public research university system providing education and healthcare.
Ph.D. in nanoengineering, materials science, chemistry, chemical engineering or related; demonstrated doctoral-level R&D experience in energy storage, solid-state battery fabrication, materials preparation and characterization; proficiency with advanced characterization techniques.
FIB, (S)TEM, XPS, FTIR, Raman spectroscopy, cryo-SEM, synchrotron X-ray, solid-state NMR, Python, MATLAB, LabVIEW
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Project Scientist Position 2026-2027
Irvine, California, United States
$104k-$229k/yr OnsiteFull Time
University of California
University of California: A public research university system providing education and healthcare.
Ph.D. in Materials Science or related field required; experience in advanced materials, manufacturing, characterization, biomaterials, energy materials, modeling, or nanoscale materials preferred.
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Staff Membrane Formulation Scientist
San Diego, California, United States
$142k-$236k/yr OnsiteFull Time
Dexcom
DexcomNasdaq: DXCM: Manufacturer of continuous glucose monitoring systems for diabetes management.
2+ YOEAdvanced degree or extensive industry experience in materials science or related field; expertise in polymer/material formulation, experimental design, analytical methods, and laboratory safety; strong communication and collaboration skills.
JMP, Python, Matlab, HPLC, LC/MS, Viscometer, Rheometer, Instron, DLS, Zeta potential, SEM/EDX, XRF, Confocal microscopy, Interferometry, FT-IR, NMR, electrochemical characterization
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Open Positions - Project Scientist Series
Irvine, California, United States
$79k-$209k/yr OnsiteFull Time
University of California
University of California: A public research university system providing education and healthcare.
Submit CV and contact information for 3-5 references; accepting all applicants; application materials include CV and optional cover letter and research statement.
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Project Scientist - CSST or CAC
Irvine, California, United States
$29-$45/hr FieldPart Time
TRC Companies
TRC Companies: Engineering and environmental consulting for infrastructure and energy projects.
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.
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Staff Membrane Formulation Scientist
San Diego, California, United States
$142k-$236k/yr OnsiteFull Time
Dexcom
DexcomNASDAQ: DXCM: Develops continuous glucose monitoring systems for diabetes management.
8+ YOEExpertise in polymer/material science and formulation chemistry, DOE and data analysis, hands-on polymer synthesis and characterization; typically requires advanced degree and several years of relevant experience.
JMP, Python, Matlab, HPLC, LC/MS, Viscometer, Rheometer, Instron, DLS, Zeta potential, SEM/EDX, XRF, Confocal microscopy, FT-IR, NMR
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III-V & Active Laser Scientist
Temecula, California, United States
$175k-$185k/yr OnsiteFull Time
Skorpios Technologies
Skorpios Technologies: Designs and manufactures silicon photonics for high-speed optical communications
10+ YOEPh.D. preferred or MS in physics/EE/material science; 10+ years in photonics device design; lasers, MZM, photodiode physics; startup mindset.
Ansys Lumerical, Zemax, Speos, JMP, Minitab
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Sr. III-V & Active Modulator/Photodiode Scientist
Temecula, California, United States
$140k-$180k/yr OnsiteFull Time
Skorpios Technologies
Skorpios Technologies: Designs and manufactures silicon photonics for high-speed optical communications
5+ YOESenior-level expert in InP MZM design/characterization; MS/PhD in physics/EE/materials; extensive industrial experience; strong analytical and communication skills.
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Project Scientists - Open Ranks 2026-27
Irvine, California, United States
$79k-$209k/yr OnsiteFull Time
University of California
University of California: A public research university system providing education and healthcare.
Ph.D. in chemistry or a related field required; expertise in one of inorganic, organic/chemical biology, physical/analytical, polymer/materials/nanoscience, or theoretical chemistry; apply with CV, cover letter, and references.