18 materials and processes engineer jobs at 10 companies in Irvine, CA

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Materials and Process Engineer
Torrance, California, United States
$105k-$160k/yr OnsiteFull Time
Robinson Helicopter Company
Robinson Helicopter Company: Private American manufacturer of civil helicopters and unmanned aircraft serving training, utility, public-safety, and defense operators.
Hands-on materials and process engineering for material selection, testing, failure investigation, process improvement, and compliance with 14 CFR Part 27.
4w
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Materials & Processes Technical Specialist II
Long Beach, California, United States
$38-$58/hr OnsiteFull Time
Relativity Space
Relativity Space: Aerospace developing 3D-printed rockets and launch services.
5+ YOEAssociate's degree in materials or natural science,5+ years hands-on aerospace high-temperature materials processing and testing, CNC and composite fabrication experience, ability to operate tooling and testing instruments,mentoring skills.
Prototrack, DXF, STF, SPACECLAIM, AutoCAD, NX, Team Center, Warp Drive, Microsoft Office, Microsoft Excel, DSC, LFA, TGA, Dilatometer, Instron
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Staff Materials and Process Engineer
Los Angeles, California, United States
OnsiteFull Time
Karman Industries
Karman Industries: A thermal-technology building modular heat-processing systems for AI data centers and industry.
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.
1mo
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Senior Materials and Process Engineer, Rocket Motor Systems
Costa Mesa, California, United States
$146k-$194k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology developing AI-powered autonomous military systems.
5+ YOEBSc in materials/engineering field, 5+ years materials/process experience in aerospace/propulsion/defense, experience creating material and process specifications, materials characterization, root-cause analysis, and ability to obtain Top Secret clearance.
2mo
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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
3d
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Materials and Process Engineer (Mid/ Senior)
El Segundo, California, United States
$105k-$167k/yr OnsiteFull Time
Hybron
Hybron: American aerospace and defense composites manufacturer producing lightweight carbon-fiber components for aircraft, unmanned systems, and munitions.
3+ YOEBachelor's degree in engineering or science, 3+ years of composite materials industry experience for mid-level or 5+ years with technical leadership for senior-level, materials characterization, testing, failure analysis, and U.S. Person status required.
Thermogravimetric Analysis (TGA), Dynamic Mechanical Analysis (DMA), Differential Scanning Calorimetry (DSC), Thermal Mechanical Analysis (TMA), JMP, Minitab, AS9100, NADCAP, MIL-SPEC
3w
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Materials & Process (M&P) Engineer
El Segundo, California, United States
$130k-$165k/yr OnsiteFull Time
Space Kinetic
Space Kinetic: Privately held dual-use space technology startup building one-to-many payload deployment systems for national-security space operations.
3+ YOEBachelor's degree in a relevant engineering field and 3–7 years of materials and processes experience with spaceflight or high-reliability aerospace hardware, including metals, composites, thermal materials, and failure investigations.
NASA-STD-6016
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Materials and Process Engineer, Air Dominance and Strike
Costa Mesa, California, United States
$129k-$171k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology developing AI-powered autonomous military systems.
2+ YOEB.S. in relevant field, 2+ years aerospace/defense experience, materials and manufacturing process knowledge, familiarity with bonding, coatings, composites, strong communication and time management, ability to obtain US DoD Secret Clearance.
Lattice OS, Siemens NX, FTIR, SEM, TGA
4d
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Engineer Material Process
El Segundo or Palmdale
$83k-$125k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Global aerospace and defense technology.
2+ YOEBachelor’s degree in STEM plus 2 years’ related experience, or master’s plus 0 years. Requires materials processing experience, metal/composite fabrication, repair processes, Secret clearance, and SAP access eligibility.
1w
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Senior Materials and Process Engineer, Rocket Motor Systems (Polymeric Ablatives)
Costa Mesa or Mississippi or North Carolina or Alabama
$146k-$194k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology developing AI-powered autonomous military systems.
5+ YOEBachelor's degree in a related engineering or materials field, 5+ years of aerospace, propulsion, or defense materials and process experience, specification development, technical writing, troubleshooting, and ability to obtain a U.S. Top Secret clearance.
Lattice OS, FTIR, Raman, X-ray, CT scan, ultrasonic, radiography, CMH-17, JANNAF, MIL-HDBK-17, EPDM, NBR, MIL-STDs, AIAA
2mo
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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: Global aerospace and defense technology.
5+ YOESTEM degree with relevant engineering experience (5+ years typical; senior level requires 8+), material testing/qualification experience, Microsoft Office proficiency, ability to obtain US Secret clearance and Special Program Access, travel up to 10%.
Teamcenter, JDL, Fibersim, CATIA, Microsoft Office Suite
1mo
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Senior Materials and Process Engineer (Onsite)
Riverside, California, United States
$96k-$182k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
5+ YOESTEM degree with 5+ years' relevant experience (or advanced degree with 3+ years), experience with composites, prepregs, structural adhesives, technical writing, Microsoft Word/Excel, and supplier qualifications; U.S. Person required.
Microsoft Word, Microsoft Excel, SAP, Teamcenter
4d
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Engineer Material Process
El Segundo or Palmdale
$83k-$125k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
2+ YOEBachelor's in STEM plus 2 years related experience or master's with 0 years; experience with metallics, composites, sealants, coatings, fabrication, repair processes, and an active U.S. Secret clearance.
2w
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2026 Intern Conversion - Materials and Process Engineer I
Seattle or Van Horn or Denver or Huntsville or Florida or Arlington or Los Angeles or Longmont or Reston or United States
$75k-$114k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
Completed a 2026 Blue Origin internship; enrolled in or recently graduating from college; minimum B.S. in mechanical, aerospace, or astronautical engineering; strong communication and teamwork skills; U.S. work authorization required.
Defense Biometric Identification System (DBIDS)
1w
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Engineer or Principal Engineer Material & Process
El Segundo, California, United States
$83k-$155k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
2+ YOERequires STEM bachelor's with 2+ years, master's with 0 years, or higher-level qualifications; composite materials experience, Secret clearance, and onsite availability required.
Nondestructive Inspection (NDI), Ultrasonic Testing (UT), thermography, radiography, ASTM, AMS
1mo
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Process Engineer, Chemical and Mechanical Polish (CMP)
Temecula, California, United States
$100k-$140k/yr OnsiteFull Time
Skorpios Technologies
Skorpios Technologies: Private semiconductor manufacturer delivering heterogeneous silicon-photonics products for optical communications and high-bandwidth interconnects.
MS or PhD in EE/Materials/Physics/Chemistry, hands-on CMP/fab processing experience, strong data analysis/statistics and communication skills, ability to support 24/7 manufacturing.
MS Office Word, Microsoft Excel, MS Office PowerPoint, Statistical Process Control (SPC), Design of Experiments (DOE)
1w
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Engineer or Principal Engineer Material & Process
El Segundo, California, United States
$83k-$155k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Global aerospace and defense technology.
2+ YOESTEM bachelor's degree with 2+ years of relevant experience, master's with applicable experience, or PhD; composites and aerospace/defense experience; current Secret clearance and ability to obtain SAP clearance.
Nondestructive Inspection (NDI), ultrasonic testing (UT), thermography, radiography, ASTM, AMS, DOE
3mo
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Applied Scientist, Materials and Process Development, AWS Center for Quantum Computing
Pasadena, California, United States
$143k-$193k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Multinational technology focused on e-commerce and cloud computing.
PhD in engineering, physics, or materials science; expertise in thin-film deposition and 200 mm wafer scale; strong materials characterization and cross-functional collaboration.
Thin-film deposition, Materials characterization, Semiconductor process integration