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68 characterization jobs at 30 companies in Downey, CA

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Materials Characterization Technician II
Long Beach, California, United States
$26-$35/hr OnsiteFull Time
Relativity Space
Relativity Space: Designing and manufacturing 3D-printed rockets and launch vehicles.
2+ YOE2+ years machining experience operating/programming CNC lathes, mills, or EDM; machine maintenance and calibration; inspection with calipers/micrometers; interpreting engineering drawings and specifications.
CNC lathes, CNC mills, wire EDM machines, CAD, G-code, CAD/CAM software, calipers, micrometers, dial indicators
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1mo
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Environmental Characterization/Remediation Geologist/Hydrogeologist
Irvine, California, United States
$71k-$107k/yr HybridFull Time
Jacobs
JacobsNYSE: J: Global provider of professional engineering and technical services.
3+ YOEBachelor's in geology or related field, 3+ years delivering environmental site characterization/remediation projects, 40-hr HAZWOPER (or ability to attain), EMR not specified, strong verbal/written communication and field oversight skills.
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2mo
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Applied Scientist, Materials Characterization and Simulations, Amazon Center for Quantum Computing
Pasadena, California, United States
$143k-$193k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
PhD in a relevant field; expertise in materials characterization and computational modeling; experience with cross-team collaboration; proficient in scientific programming.
scientific programming, computational modeling, materials characterization techniques
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6d
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Territory Sales Manager Material Characterization
Los Angeles, California, United States
$105k-$118k/yr RemoteFull Time
Anton Paar
Anton Paar: Manufacturer of high-precision analytical instruments and process measurement systems.
Experience in technical or analytical-instrument sales preferred; bachelor's or master's in natural science or engineering; strong communication and presentation skills; valid driver's license and passport; ability to travel up to 50-60% and work independently.
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Lead Materials R&D Technician (Materials Lab - Characterization)
Hawthorne, California, United States
$26-$44/hr OnsiteFull Time
SpaceX
SpaceX: Designs and launches advanced rockets and satellite internet constellations.
3+ YOEHigh school diploma, 3+ years aerospace testing lab experience with thermal instrumentation (DMA, TMA, DSC, TGA, LFA), team management and scheduling experience, hands-on equipment operation, ability to lift 30 lbs, willing to work overtime/weekends, ITAR eligibility required.
DMA, TMA, DSC, TGA, LFA, Microsoft Office, ERP, ASTM
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1mo
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Test Engineer (Solar Chemistry) - Space Solar
Hawthorne, California, United States
$125k-$160k/yr OnsiteFull Time
Starpath
Starpath: Manufacturing space-rated solar hardware and lunar mining robotics.
1+ YOEBachelor's degree in a relevant STEM field, 1+ years hands-on experience characterizing thin-film/optoelectronic/photovoltaic materials and devices; experience with materials and device characterization, stability testing, and data analysis.
LabVIEW, Python, MATLAB
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3mo
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Senior Process Engineer Solar
Los Angeles, California, United States
$140k-$175k/yr OnsiteFull Time
K2 Space
K2 Space: Develops high-power satellite platforms for heavy-lift launch vehicles.
5+ YOEBachelor’s in a technical field; 5+ years in materials/process engineering; experience with solar array processes and characterization.
SEM, EDS, FTIR, DSC, TGA, XRD, Python, MATLAB
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2mo
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Materials Scientist — Organic Crystal Growth & Process Engineering
Pasadena, California, United States
$154k-$217k/yr OnsiteFull Time
Meta
MetaNASDAQ: META: Develops social networking platforms and virtual reality technologies.
3+ YOEPhD in chemical/ materials science or related field; 3+ years experience; strong materials development and characterization background.
COMSOL Multiphysics, Ansys Fluent, Siemens FLOEFD/StarCCM+, NX, SolidWorks, CNC machining, 3D printing, NMR, GC/MS, LC/MS, SEM, AFM, XRD, DSC, TGA
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2w
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Senior Scientist (Oligonucleotide Conjugation)
Thousand Oaks, California, United States
$124k-$167k/yr OnsiteFull Time
Amgen
AmgenNASDAQ: AMGN: Develops and manufactures biotechnology medicines for serious diseases.
2+ YOEExperience designing, synthesizing, purifying, and characterizing oligonucleotide conjugates; proficiency with chromatography for oligonucleotides; ability to drive conjugation projects and communicate results.
ELISA, SPR, FRET, BLI, DSF, DLS, IEX, RP-HPLC, SEC, LC-MS, automated oligonucleotide synthesizers
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2w
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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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Silicon Validation Engineer
Los Angeles or San Francisco Bay Area
OnsiteFull Time
Apple
AppleNASDAQ: AAPL: Designs and sells consumer electronics, software, and online services.
Bachelor’s degree; experience with high-speed SerDes, CTLE/DFE/PLL; lab characterization; Python programming; knowledge of USB, PCIe, DP protocols.
High-Speed Oscilloscope, BERT, Python, SerDes, CTLE, DFE, FFE, CDR, PLL
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2mo
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Sr Research Engineer - Polymer Materials (Fontana, CA, US, 92337)
Fontana, California, United States
$120k-$135k/yr OnsiteFull Time
James Hardie
James HardieNYSE: JHX: Manufacturer of fiber cement siding and exterior building products.
0+ YOEPhD in polymer science/engineering or MS with 3–10 years of experience; PVC expertise; AI-assisted material characterization; travel ~35%; strong communication.
PVC, extrusion, formulation development, DSC, TGA, DMA, rheometer
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1w
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Materials Engineer II
Torrance, California, United States
$115k-$150k/yr OnsiteFull Time
Antares
Antares: Designing and manufacturing microreactors for defense and space missions.
2+ YOEBachelor's in materials/mechanical engineering, 2+ years materials engineering experience, proficiency in optical/electron microscopy and mechanical property evaluation, materials characterization and failure analysis.
optical microscopy, electron microscopy
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2w
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Hardware Verification Engineer, New College Graduate, (Teradyne, Agoura Hills, CA)
Agoura Hills, California, United States
$82k-$131k/yr OnsiteFull Time
Teradyne
TeradyneNASDAQ: TER: Designs and manufactures automated test equipment and advanced robotics systems.
Bachelor's in Electrical Engineering or Physics, proficiency in Visual Basic and SCPI, bench characterization experience with oscilloscope and pattern generator, familiarity with multi-GHz signals; master's preferred.
Visual Basic, Python, MATLAB, C#, SCPI, oscilloscope, pattern generator
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1w
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Postdoctoral Researcher-Biomaterials and Hydrogel Engineering
Woodland Hills, California, United States
$70k/yr OnsiteFull Time
Terasaki Institute for Biomedical Innovation
Terasaki Institute for Biomedical Innovation: Develops personalized medical technologies through bioengineering and convergent science.
PhD in related field (recent grad preferred), hands-on hydrogel design/synthesis/characterization, cell–material interaction experience, strong publication record and communication skills.
rheology, mechanical testing, confocal imaging, flow cytometry, microfluidics, bioprinting
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2mo
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Surface and Interfacial Scientist – Thin Films & Optical Coatings
El Segundo, California, United States
$100k-$150k/yr OnsiteFull Time
The Aerospace Corporation
The Aerospace Corporation: Provides technical expertise and research for national space programs.
PhD in materials science or related field; expertise in surface characterization (XPS/AFM); experience in optical coatings and thin films; ability to travel; ability to obtain Secret clearance.
XPS, AFM, LabView, Python
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1w
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Sr Scientist I Analytical Chemistry- Mass Spec
Irvine, California, United States
$97k-$184k/yr OnsiteFull Time
AbbVie
AbbVieNYSE: ABBV: Develops and sells innovative pharmaceutical and biopharmaceutical medicines.
Extensive mass spectrometry experience (LC-MS, TOF, Orbitrap) for protein characterization, method development, and regulatory-compliant analytical work; advanced degree or equivalent experience expected.
LC-MS, TOF, Orbitrap, mass spectrometry
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1w
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Principal/ Sr. Principal SiC Technologist - U.S. Government Programs
Torrance, California, United States
$150k-$210k/yr OnsiteFull Time
Navitas Semiconductor
Navitas SemiconductorNASDAQ: NVTS: Designs and markets next-generation power semiconductors for high-efficiency applications.
10+ YOEPh.D. and 10+ years in semiconductor device technology with deep SiC experience; expertise in high-voltage device characterization, reliability, program execution, and U.S. government program compliance.
TCAD
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3w
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Senior Associate Scientist, R&D Chemistry
Hawthorne, California, United States
$80k-$131k/yr OnsiteFull Time
Regeneron
RegeneronNasdaq: REGN: Discovers and manufactures medicines for serious diseases.
5+ YOEMSc in synthetic organic chemistry, 5+ years industry small-molecule drug discovery experience, hands-on multistep synthetic execution, retrosynthetic analysis, compound isolation/characterization, spectroscopic interpretation.
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4w
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Senior Staff Testing Engineer
Westlake Village, California, United States
$120k-$178k/yr OnsiteFull Time
Marvell
MarvellNASDAQ: MRVL: Designs and develops high-performance semiconductor and infrastructure solutions.
8+ YOEPh.D. or Master’s in EE/Physics/Photonics, 8+ years in silicon photonics design/characterization/production testing, expertise in integrated optics, automation with Python/LabVIEW/C++, and statistical data analysis.
Python, LabVIEW, C/C++, LCA, Optical Spectrum Analyzer (OSA), JMP, MATLAB, Pandas, NumPy, SQL
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