294 materials engineer jobs at 149 companies in Westminster, CA

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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
1mo
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Sr. Materials Engineer, Materials Laboratory
Hawthorne, California, United States
$135k-$190k/yr OnsiteFull Time
SpaceX
SpaceX: Designs and launches advanced rockets and satellite internet constellations.
5+ YOEBachelor's in materials or related field, 5+ years materials lab engineering experience, hands-on with mechanical/thermal/characterization testing, proficiency with Python or MATLAB, experience with SEM/EDS/XRD/TGA/DSC/DMA/Gleeble, ability to lift 25 lbs and work extended hours/weekends.
Python, MATLAB, SEM, EDS, XRD, FTIR, spark OES, pycnometer, TGA, DSC, DMA, Gleeble, ASTM, ISO
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Senior Materials Engineer - Metals
Tustin or Plymouth or Normal
$99k-$123k/yr OnsiteFull Time
Rivian
RivianNASDAQ: RIVN: Designs and manufactures electric vehicles and charging networks.
5+ YOEMaster’s degree in materials/metallurgical/mechanical engineering, 5+ years in automotive product development, deep steel metallurgy, light-metal knowledge, hands-on microscopy and testing, familiarity with manufacturing and supplier processes, strong communication.
microscopy, formability testing, mechanical testing, corrosion evaluation, APQP, PPAP, DFMEA, PFMEA, CAE
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Materials Engineer, Additive Manufacturing
Los Angeles, California, United States
$150k-$220k/yr OnsiteFull Time
Hadrian
Hadrian: Building autonomous factories for aerospace and defense manufacturing.
4+ YOEMaster's in materials or related field, 4+ years qualifying additive manufacturing processes (LPBF/DED), alloy knowledge, materials testing and metallurgical analysis, DOE and statistical analysis, ability to author specs and qualification docs.
MMPDS, NADCAP, AMS7000, AS9100, ASTM, AMS
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Materials & Process Engineer
Torrance, California, United States
$100k-$165k/yr OnsiteFull Time
Stellant Systems
Stellant Systems: Manufacturer of radio frequency and microwave amplification products.
4+ YOEBachelor's degree in Materials/Mechanical/Chemical Engineering, 4+ years experience (levels up to 9 years), expertise in welding/brazing/soldering, chemical cleaning and plating, lab testing (SEM, XPS, DSC, XRF, X‑Rays), and ability to write specifications and train operators.
Laser, TIG, Resistance, Gas Tungsten Arc Welding (GTAW), Laser Welding, Brazing, Soldering, SEM, XPS, microscopy, DSC, XRF, X-Rays, Microsoft Office
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Materials and Process Engineer
Torrance, California, United States
$105k-$160k/yr OnsiteFull Time
Robinson Helicopter
Robinson Helicopter: Designs and manufactures civil helicopters and uncrewed aerial systems.
Hands-on materials and process engineering for material selection, testing, failure investigation, process improvement, and compliance with 14 CFR Part 27.
2w
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2026-2027 Facilities Engineering Materials Engineer
Houston or Pasadena or Pascagoula or Richmond or El Segundo or Salt Lake City
$108k-$136k/yr OnsiteFull Time
Chevron
ChevronNYSE: CVX: Global energy producing oil, gas, and petrochemicals.
0+ YOECandidates completing a Bachelors/Masters/Doctorate in Metallurgical, Materials or Corrosion Engineering or graduates with ≤2 years related experience; strong academics, communication, teamwork and problem-solving skills.
21h
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Materials and Process Engineer - Metallics
Rockville or Hawthorne or Tulsa or Denver
$125k-$175k/yr OnsiteFull Time
Quantum Space
Quantum Space: Developing maneuverable spacecraft platforms for defense and commercial missions.
10+ YOEBachelor's in materials or related engineering, 10+ years in metallic materials and manufacturing for high-reliability/aerospace, expertise in welding/FSW/brazing/heat treatment, materials selection, failure analysis, and process qualification.
Friction stir welding (FSW), WPS/PQR, GD&T
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Staff Materials and Process Engineer
Los Angeles, California, United States
OnsiteFull Time
Karman Industries
Karman Industries: Modular electric heat pumps for industrial thermal energy management.
5+ YOEB.S. in materials/mechanical engineering, 5+ years in materials selection/qualification/process development, experience with brazing/welding and test campaigns, hands-on manufacturing process development.
3mo
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Senior Materials Engineer (Metal 3D Printing)
Hawthorne, California, United States
$125k-$200k/yr OnsiteFull Time
Freeform
Freeform: Deploys autonomous AI-powered metal 3D printing factories.
7+ YOEBachelor’s in materials science/engineering or related; 7+ years metals experience; expertise in metallurgical prep techniques.
R, JMP, Minitab, Laser Powder Bed Fusion, Additive Manufacturing
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Materials Developer
Huntington Beach, California, United States
$71k-$107k/yr OnsiteFull Time
TravisMathew
TravisMathew: Retailer of performance golf apparel and lifestyle clothing.
3+ YOEBachelor's or technical trade education, minimum 3 years material sourcing/development experience, PLM and Adobe Illustrator/Photoshop proficiency, fabric construction knowledge, project management and international travel ability.
PLM, Adobe Illustrator, Adobe Photoshop, Microsoft Office
2w
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Senior Materials & Process Engineer, Rocket Motor Systems
McHenry or Costa Mesa or Alabama or North Carolina
$113k-$149k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
5+ YOEBachelor's in materials/chemical/mechanical/aerospace engineering,5+ years M&P experience in aerospace/propulsion/defense,experience developing material and process specifications,materials characterization and testing,ability to obtain U.S. Top Secret clearance.
CMH-17, JANNAF, MIL-HDBK-17, NDI, X-ray, CT scan, ultrasonic, radiography, MIL-STDs, AIAA
2mo
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Energetic Materials Engineer, Solid Propellant
Los Angeles, California, United States
OnsiteFull Time
Furientis
Furientis: Develops cost-effective, high-volume interceptor missile systems.
5+ YOEB.S. or M.S. in chemistry/chemical engineering/materials + 5+ years hands-on composite-propellant formulation and mix/process development with at least one propellant taken through motor flight/qualification; experience with mixers, burn-rate testing, thermochemistry codes, supplier qualification; U.S. Person.
Claude Code, Codex, OpenCode
6d
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Senior Materials & Process Engineer (Metallurgy)
Torrance, California, United States
$141k-$194k/yr OnsiteFull Time
Divergent
Divergent: Develops digital manufacturing systems for complex vehicle structures.
5+ YOEBachelor's in materials or related field,5+ years executing material qualifications and working with hardware in manufacturing,experience with AMS/ASTM/MIL standards,ability to perform metallurgical evaluation and interpret aerospace/defense requirements,able to lift 25 lbs.
Teamcenter, NX
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Materials and Process Engineer I
Long Beach, California, United States
$85k-$115k/yr OnsiteFull Time
Rocket Lab
Rocket LabNasdaq: RKLB: Operates launch vehicles and manufactures satellites for space missions.
1+ YOEBachelor's in engineering, 1+ year materials testing lab experience (metal additive manufacturing preferred), hands-on mechanical testing or metallography, ability to develop/qualify test methods, perform root cause analysis, and present technical findings.
tensile tester, compression tester, fatigue tester, Optical microscope, electron microscope, CAD, ASTM, ISO
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Principal/Sr Principal Materials and Process Engineer
El Segundo, California, United States
$104k-$193k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
5+ YOEUS Secret-clearable materials/process engineer with materials testing/qualification experience, STEM degree, Microsoft Office proficiency, and demonstrated troubleshooting and supplier/design interaction skills; travel up to 10%.
Teamcenter, JDL, Fibersim, Catia, Microsoft Office Suite
1mo
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Composites Materials and Process Engineer (US)
Anaheim, California, United States
$123k-$168k/yr OnsiteFull Time
Syensqo
SyensqoEuronext Brussels: SYENS: Develops specialty chemicals and advanced materials for global industries.
5+ YOEBachelor's in engineering or materials science required; 5+ years' experience in composites R&D, 2+ years reviewing composite part designs, 3+ years in composite materials/process R&D, aerospace industry experience, strong problem solving and communication.
2w
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Manager, Stage Materials & Processes Engineering
Long Beach, California, United States
$150k-$224k/yr OnsiteFull Time
Relativity Space
Relativity Space: Designing and manufacturing 3D-printed rockets and launch vehicles.
6+ YOE2+ MgmtBachelor's in materials science/engineering or related field,6+ years materials & process engineering experience,2+ years leading technical teams,proficiency in M&P qualification,failure analysis,and experimental design.
1mo
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Materials and Process Engineer I
El Segundo, California, United States
$63k-$120k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: Provides advanced aerospace and defense systems and services.
0+ YOEUniversity degree or equivalent and typically less than 2 years relevant experience; experience with wet chemistry and lab equipment (microscopes, viscometer, mixers, Instron); knowledge of OSHA/Cal-OSHA and hazardous materials handling; U.S. citizenship required.
microscopes, viscometer, mixers, Instron, FTIR, ICP, DSC, DMA, GC, TGA, Microsoft Office
3mo
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Electronics Parts, Materials, and Processes Engineer - Advanced Packaging
El Segundo or Chantilly
$117k-$176k/yr OnsiteFull Time
The Aerospace Corporation
The Aerospace Corporation: Provides technical expertise and research for national space programs.
8+ YOEBachelor’s in materials science, electrical engineering, or related; 8+ years engineering experience; proficiency in advanced semiconductor packaging; PMP standards; ability to obtain TS/SSBI clearance.
MS Project, Jira, advanced semiconductor packaging, PMP standards