28 materials science engineer jobs at 20 companies in Bonsall, CA
5d
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Materials Engineer II
Lake Forest, California, United States
$80k-$100k/yr OnsiteFull Time
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)
2mo
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Materials Engineer - Interior & Exterior Trim
Irvine, California, United States
$86k-$107k/yr OnsiteFull Time
4+ YOEBS in materials science/engineering required (MS preferred), 4+ years materials development experience preferred, multi-disciplined experience with plastics/films/textiles/composites, project/vendor management, strong communication, Google suite proficiency, ~10% travel.
Google suite
1d
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Direct Materials Sciences Specialist/Expert
Oceanside, California, United States
$94k-$175k/yr OnsiteFull Time
4+ YOEBS, MS, or PhD preferably in science or engineering, plus 4+ years in pharmaceutical, biopharmaceutical, or medical device industry. Requires materials science, GMP, ICH, quality systems, and project management expertise.
CAPA, Change Management, ICH, GMP
1w
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Senior Consulting Engineer
San Diego, California, United States
$159k-$239k/yr OnsiteFull Time
Requires an accredited degree in engineering, computer science, or materials science, with expert technical, analytical, product testing, design, and project management capabilities.
Health Savings Account (HSA), Flexible Spending Accounts (FSAs)
1mo
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Lead Application Engineer
Irvine or Irvine
$108k-$140k/yr OnsiteFull Time
5+ YOEDegree in engineering or materials science required; 5+ years (PhD) or 7+ years (BSc/MSc) experience in R&D/application engineering; customer support, SMT/encapsulant knowledge, material handling and statistical analysis (MinTab/JMP) experience; global travel up to 25%.
MinTab, JMP
8h
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Engineer II, Technology (Metallurgy)
Irvine, California, United States
OnsiteFull Time
Bachelor's degree in metallurgical engineering or materials science; strong analytical, problem-solving, communication, teamwork, organizational, and computer skills required.
Microsoft Office, Microsoft Word, Microsoft Excel
2mo
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Senior Electronics Components Engineer
Costa Mesa, California, United States
$146k-$194k/yr OnsiteFull Time
5+ YOEBachelor’s in Electrical/Computer Engineering or Materials Sciences; 5+ years component engineering experience; lab prototyping; experience with extreme environments; US person status.
Oscilloscopes, DMM, Embedded software, C, Linux, SPI, ADCs
1w
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Process Engineer, Metrology
Temecula, California, United States
OnsiteFull Time
Degree in engineering, materials science, physics or chemistry with extensive fab metrology and SPC experience; ability to operate characterization tools, analyze data, troubleshoot, and work offset shifts.
Statistical Process Control (SPC), Document Control, Manufacturing Execution Systems
1mo
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Thin Film Engineer
Irvine, California, United States
$80k-$100k/yr OnsiteFull Time
2+ YOEBachelor's in Materials Science/Physics/Engineering, 2+ years thin film manufacturing experience, strong troubleshooting and communication skills, proficiency with Microsoft Excel and PowerPoint.
Microsoft Excel, PowerPoint
1d
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Principal Engineer- Optics Manufacturing Integration
Vista or San Diego or Santa Clara or Colorado Springs
$159k-$250k/yr OnsiteFull Time
15+ YOEBachelor's degree in engineering or materials science and 15+ years in optoelectronic or microelectronics manufacturing, including process development, assembly, technology transfer, and automated tools.
DOE, FMEA, Six Sigma
1mo
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Sr. Packaging Engineer (Irvine, CA, US)
Irvine, California, United States
$91k-$177k/yr OnsiteFull Time
5+ YOEBachelor's degree in engineering or materials science, 5+ years experience in semiconductor packaging, expertise in failure analysis, material interaction, yield improvement, SPC/FMEA/Six Sigma knowledge, strong communication and problem-solving skills.
Cadence Allegro, AutoCAD
2mo
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PCB Process Engineer - Wet Process
Santa Ana, California, United States
$68k-$100k/yr OnsiteFull Time
2+ YOEBachelor's in chemical engineering or materials science, 2+ years wet process engineering in PCB manufacturing, knowledge of PCB fabrication (rigid/flex/rigid-flex), ERP and Minitab proficiency, GD&T interpretation, OSHA/EPA compliance experience.
ERP, Minitab, E-Verify
3mo
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Principal Process Development Engineer
Murrieta, California, United States
$101k-$178k/yr OnsiteFull Time
9+ YOEBachelor's in engineering, physics, or material science; 9+ years in optical manufacturing; strong analytical and problem-solving skills; experience in precision manufacturing; preferred: diamond turning, optics fabrication, optical metrology, opto-mechanical assembly.
Diamond Turning, Optical Metrology, Profilometry, Interferometry, Opto-mechanical Assembly, Conventional Optics Fabrication
2mo
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Sr. Staff Thermo-Mechanical Engineer
Santa Clara or Irvine or Westlake Village
$118k-$177k/yr OnsiteFull Time
5+ YOEBachelor’s degree in Electrical/Computer Science or related field with 5-10 years experience, or Master’s/PhD with 3-5 years; strong thermo-mechanical FEA and multi-material systems experience; proficiency with ANSYS/Abaqus/COMSOL; semiconductor packaging knowledge.
ANSYS, Abaqus, COMSOL, Python, MATLAB
3w
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Technical Intern, Advanced Analysis Fall 2026
Newport Beach, California, United States
$29-$37/hr OnsiteMultiple Commitments Available
Current student in civil/structural engineering, materials science, architecture, or related field; strong academics; strong communication; interest in field and site work.
3w
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Specialist Position 2026-2027
Irvine, California, United States
$57k-$202k/yr OnsiteFull Time
Requires B.S., M.S., or Ph.D. in Materials Science and Engineering or related field and experience in areas such as additive manufacturing, materials characterization, biomaterials, energy materials, modeling, or nanoscale materials.
1w
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Fall 2026 Technical Product Marketing Undergraduate Intern
Irvine, California, United States
$25-$31/hr OnsitePart Time
Enrolled in a bachelor’s program in engineering, physics, chemistry, materials science or related; technical knowledge, Excel skills, communication, organization, and willingness to learn technical and business tasks.
Microsoft Excel, Microsoft 365
5d
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Senior Scientist - EUV Research
San Diego, California, United States
$118k-$177k/yr OnsiteFull Time
3+ YOEPhD or MS with 3+ years of relevant experience in engineering, materials science, physics, or optics; requires research, metrology, data analysis, system design, prototyping, troubleshooting, and communication skills.
Matlab, Python, NI LabVIEW
2mo
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Product Manager
Lake Forest, California, United States
$73k-$105k/yr OnsiteFull Time
Bachelor’s degree in engineering/materials science/business or related field; strong interest in technical sales within PCB/electronics; self-motivated, relationship-driven; excellent communication and problem-solving; willing to travel.
2mo
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Director, Technical Program Management (28983)
San Diego, California, United States
$170k-$220k/yr HybridFull Time
10+ YOEBachelor's in Engineering or Materials Science, 10+ years in semiconductor packaging or related fields, strong program management, presentation and communication skills, proficiency with MS Office, SPC, DOE, FMEA, and flexibility for US/Asian business hours.
Microsoft Excel, Microsoft Word, Microsoft PowerPoint, SPC, DOE, FMEA
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