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22 polymer engineer jobs at 18 companies in California

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Materials Engineer, Polymer Development
Hawthorne, California, United States
$100k-$160k/yr OnsiteFull Time
SpaceX
SpaceXNasdaq: SPCX: Designing, manufacturing, and launching advanced rockets and spacecraft.
2+ YOEBachelor's degree in chemistry, polymer science, or materials science and engineering, plus 2+ years of polymer formulation, chemical synthesis, polymer chemistry, or non-metallic materials engineering experience.
FTIR, TGA, DSC, DMA, TMA, TPS, NMR, UV-Vis, GPC, GC, MS
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2w
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Chemical Engineer, Polymer Coatings
San Carlos, California, United States
$200k-$248k/yr OnsiteFull Time
1X Technologies
1X Technologies: Private AI and robotics developing humanoid home robots for household assistance.
3+ YOEBachelor's or master's in chemical engineering, materials science, polymer chemistry, polymer science, or related engineering field; 3+ years developing polymer coatings; expertise in characterization, synthesis, formulation, DOE, and lab safety.
DMA, DSC, TGA, FTIR, DOE, rheology, optical microscopy
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3mo
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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: The industry leader in exterior home and outdoor living solutions.
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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Sr. Staff Engineer, Molding
Hunt Valley or San Diego or Mebane or Québec
$147k-$235k/yr OnsiteFull Time
BD
BDNYSE: BDX: Global medical technology advancing the world of health.
10+ YOE10+ years injection molding engineering experience in regulated industries; degree in engineering or polymer science; expertise in mold design, polymer science, SPC and DOE; regulatory knowledge (FDA, ISO).
SolidWorks, Creo, Moldflow, Sigmasoft
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Materials Engineer II
Lake Forest, California, United States
$80k-$100k/yr OnsiteFull Time
Bal Seal Engineering
Bal Seal Engineering: Custom-engineered seals, springs, and electrical contacts manufacturer serving aerospace, medical, industrial, and other OEMs.
4+ YOEBachelor's degree in materials science or related engineering, 4+ years in materials science and engineering, polymer and metallic wire experience, testing methodologies, DOE, technical writing, and English fluency.
Scanning Electron Microscope (SEM), Differential Scanning Calorimetry (DSC), Thermogravimetric Analysis (TGA), Fourier Transform Infrared (FTIR), Microsoft Office, Design of Experiments (DOE)
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Solution Engineer - Applications II
Garden Grove, California, United States
$82k-$127k/yr OnsiteFull Time
Saint-Gobain
Saint-GobainEuronext Paris: SGO: Global leader in light and sustainable construction.
5+ YOEBachelor's degree in materials, chemical, mechanical, or polymer engineering/science required; 5+ years in specialized industries or manufacturing; SolidWorks or AutoCAD proficiency; engineering drawings and GD&T experience.
SolidWorks, AutoCAD, GD&T
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Electromechanical Engineer Intern
Fremont, California, United States
$27-$57/hr HybridInternship
TE Connectivity
TE ConnectivityNYSE: TEL: Global industrial technology leader in connectivity and sensor solutions.
High school diploma or GED and current enrollment in a mechanical, electrical, or plastics/polymer engineering degree; U.S. work authorization required. Prior internship or major project preferred.
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Senior Application Engineer & Customer Success
El Segundo, California, United States
HybridFull Time
Roboze
Roboze: Italian industrial 3D-printing manufacturer serving aerospace, defense, energy, automotive, and other strategic industries.
Engineering degree, customer-facing technical experience, CAD proficiency, project management and strong communication; up to 50% U.S. travel; familiarity with 3D printing and advanced polymers preferred.
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Senior Product Engineer, Filaments and Thermoplastics
San Jose, California, United States
$128k-$192k/yr OnsiteFull Time
Lyten
Lyten: Privately held advanced-materials making lithium-sulfur batteries, composites, and sensors for automotive, aerospace, defense, and industrial customers.
5+ YOEBS with 5+ years, MS with 3+ years, or PhD in polymer, chemical, or materials science; requires polymer rheology, 3D printing, extrusion or compounding, product specifications, quality, and supplier-management experience.
3D printing, additive manufacturing, FFF, FDM, extrusion, compounding, rheology, thermal analysis, mechanical testing, ASTM, ISO
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2mo
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Senior Materials Engineer - Golf Ball R&D
Carlsbad, California, United States
$97k-$146k/yr OnsiteFull Time
Callaway
CallawayNYSE: CALY: Public premium golf equipment, gear, and apparel serving golfers with clubs, balls, bags, accessories, and performance clothing.
5+ YOEMS (or equivalent) in materials-related field, 5+ years polymer/materials R&D experience, proficiency in materials characterization and polymer processing, strong project management and communication skills.
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Senior Manufacturing Engineer
Playa Vista, California, United States
$137k-$193k/yr OnsiteFull Time
Inversion Space
Inversion Space: Privately held aerospace building autonomous reentry vehicles for defense, logistics, and rapid cargo delivery from orbit.
5+ YOEBachelor's degree or equivalent experience; 5+ years developing and scaling wet-chemistry or polymer processes, including equipment commissioning, process safety, and infusion or infiltration manufacturing.
PLC, SCADA
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Chemical / Materials Engineer – Space Solar
Hawthorne, California, United States
$125k-$160k/yr OnsiteFull Time
Starpath Robotics
Starpath Robotics: Space technology developing power and propellant technologies for permanent human civilization on the Moon and Mars.
1+ YOEBachelor's or master's degree in chemistry, chemical engineering, materials science, applied physics, or related field; 1+ year hands-on experience with photovoltaic, optoelectronic, polymer, or related materials; experiment and data analysis skills.
XRD, XPS, FTIR, DSC, TGA, SEM, AFM, Python, MATLAB, EQE
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Solution Engineer - Applications II, Manufacturing - Omniseal Solution
California or Washington
$82k-$127k/yr OnsiteFull Time
Saint-Gobain
Saint-GobainEuronext Paris: SGO: Global leader in light and sustainable construction.
5+ YOEBachelors in materials/chemical/mechanical/polymer field required; 5+ years manufacturing experience; SolidWorks/AutoCAD proficiency; ability to design sealing components, read engineering drawings/GD&T, and lead projects.
SolidWorks, AutoCAD
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Solution Engineer - Applications II, Manufacturing - Omniseal Solution
California, United States
$82k-$127k/yr OnsiteFull Time
Saint-Gobain
Saint-GobainEuronext Paris: SGO: Global leader in light and sustainable construction.
5+ YOEBachelor's in materials/chemical/mechanical/polymer science required, Master's preferred; 5+ years in specialized industries or manufacturing; proficiency in SolidWorks/AutoCAD; ability to design sealing components, read GD&T/engineering drawings, and lead projects.
SolidWorks, AutoCAD
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Sr. Mechanical Engineer, Gearbox
Tustin or Irvine
$108k-$135k/yr OnsiteFull Time
Rivian
RivianNASDAQ: RIVN: Electric adventure vehicle and technology manufacturer.
Experience designing injection-molded plastic gears and gear trains; KISSsoft, CAD, multibody dynamics, GD&T, tolerance analysis, polymers, injection molding, PLM, and gear metrology expertise required.
KISSsoft, ISO 1328, VDI 2736, Catia V5, Catia V6, Multibody dynamics (MBD), GD&T, PLM, BOM, DVP&R, DFMEAs, iCIMS Talent Cloud Artificial Intelligence (TCAI)
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Supplier Development Engineer, Battery
San Francisco or California
$151k-$178k/yr HybridFull Time
Ōura
Ōura: Private health-technology making smart rings and software that help consumers track sleep, activity, stress, and recovery.
3+ YOERequires 3+ years in battery or electromechanical manufacturing, lithium-ion or lithium-polymer cell and pack experience, global supplier qualification, automated assembly line bring-up, root-cause analysis, and international travel up to 15%.
UN38.3, IEC 62133, UL 1642, UL 2054
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Capacitor Component Technologist
Cupertino, California, United States
OnsiteFull Time
Apple
AppleNASDAQ: AAPL: Designing and manufacturing consumer electronics, software, and digital services.
Own technology strategy for polymer, electrolytic, film, and safety capacitors and drive solutions from concept to high-volume production across product lines.
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Materials Scientist – Surface Chemistry & Adhesion
Aliso Viejo, California, United States
$120k-$140k/yr OnsiteFull Time
RxSight
RxSightNasdaq: RXST: Public ophthalmic medical-device making adjustable intraocular lenses for patients after cataract surgery.
Ph.D. in materials science, surface science, polymer science, chemistry, chemical engineering, or related field; expertise in polymer interfaces, adhesion, surface modification, coatings, experiments, characterization, and regulated product development.
Microsoft Office, Spreadsheet Software, AFM, SEM/EDS
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Territory Sales Manager Texture and Extrusion
Denver or Los Angeles or San Francisco or Torrance or United States or Graz
$105k-$118k/yr FieldFull Time
Anton Paar
Anton Paar: Manufacturer of high-precision analytical instrumentation and process measuring solutions.
2+ YOERequires 2 years of technical sales and 2 years of polymer extrusion experience, strong communication and presentation skills, a valid driver's license and passport; bachelor's degree in natural science or engineering preferred.
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R & D Manager (85690)
El Monte, California, United States
$162k-$195k/yr OnsiteFull Time
The Gill Corporation
The Gill Corporation: Family-owned aerospace composite-material manufacturer serving aircraft, space, transportation, and industrial customers with honeycomb, panels, and machined parts.
10+ YOEBachelor's in chemistry/chemical engineering/polymer science required; 10+ years R&D manufacturing experience; supervisory experience; ability to lift 50 lbs; ITAR/EAR U.S. person status may be required.
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