67 prototype engineer jobs at 30 companies in Sun City, CA
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Senior Mechanical Engineer
Escondido, California, United States
$135k-$146k/yr OnsiteFull Time
5+ YOEBachelor's in Mechanical Engineering, 5+ years mechanical engineering experience with liquid-cooled thermal management, heat transfer, structural dynamics, prototyping, and engineering specifications.
3mo
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Manufacturing Engineer, Barracuda
Costa Mesa, California, United States
$129k-$171k/yr OnsiteFull Time
5+ YOEDegree in engineering or hard sciences; 5+ years in manufacturing/prototyping; security clearance eligibility; strong quality and fabrication experience.
MBOM, PCBA, SMT, Soldering, Fabrication, CNC
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Senior Mechanical Engineer
Escondido, California, United States
$135k-$146k/yr OnsiteFull Time
5+ YOE5+ years mechanical engineering experience with heat transfer, thermal management, structural dynamics, liquid cooling and prototyping; Bachelor's in Mechanical Engineering required; strong communication and specification writing skills.
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Design Engineer
Aliso Viejo, California, United States
$82k-$103k/yr OnsiteFull Time
1+ YOEDegree in engineering or industrial design or equivalent experience, 1–3 years product design experience, CAD and prototype experience, proficiency with Microsoft Office, strong communication and collaboration skills.
CAD, SolidWorks, Microsoft Excel, Microsoft PowerPoint, Microsoft Word, Adobe Illustrator, Adobe InDesign, KeyShot, PhotoView 360, Alias, Rhino
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Senior Engineer, Special Projects
Irvine or Plymouth or Normal
$108k-$135k/yr OnsiteFull Time
Bachelor's in engineering or equivalent; hands-on prototype design and fabrication experience; CAD (Catia) proficiency; knowledge of vehicle systems, materials, and low-volume manufacturing; welding and machining skills a plus.
Catia, CAD
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Hardware Engineer
Vista, California, United States
$190k-$225k/yr OnsiteFull Time
15+ YOE15+ years in hardware design and fiber-optic communication, BS in Electrical Engineering required (MS/PhD preferred), hands-on prototyping, test and measurement, PCB/SMT experience, firmware/FPGA familiarity, and technical leadership.
FPGA, PCB, SMT, database systems, AI
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Manufacturing Engineer NPI
Fountain Valley, California, United States
$95k-$110k/yr OnsiteFull Time
3+ YOEBachelor's degree or equivalent experience, 3+ years in manufacturing or NPI engineering, drawing and BOM interpretation, DFM/DFA, prototype builds, FAI, ERP/MRP, Microsoft Office, and cross-functional coordination.
Microsoft Office, ERP, MRP, CAD, SolidWorks, M3, AS9102, PFMEA, SPC, MSA
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Mechanical Engineer II
Laguna Hills, California, United States
$80k-$100k/yr OnsiteFull Time
2+ YOEBachelor's in Mechanical Engineering with 2+ years experience (or advanced degree), skilled in mechanical design, 3D CAD modeling, prototyping, testing, design control in regulated industries, DOE exposure, and risk management.
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Hardware Engineer - PWA / PWB Design
Carlsbad or Marlborough
$105k-$165k/yr OnsiteFull Time
2+ YOE2+ years hardware engineering experience; bachelor’s in electrical engineering or equivalent; high-speed board design up to 10GbE; prototyping, DFM, test and supplier coordination; US citizenship and ability to obtain SECRET clearance.
Mentor Graphic DxDesigner, Expedition/Planner, Hyperlynx
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December 2026 New Graduate Engineer, Mechanical
Huntington Beach, California, United States
$105k-$110k/yr OnsiteFull Time
1+ YOEBachelor’s degree in engineering and 1+ year designing or prototyping mechanical systems; graduating in 2026 or 2027. CAD, programming, simulation, and manufacturing experience preferred.
NX, SolidWorks, Python, MATLAB, C++, FEA
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Principal Mechanical Engineer
Irvine, California, United States
$140k-$210k/yr OnsiteFull Time
8+ YOEBachelor's in Mechanical Engineering required; 8+ years in precision mechanical systems and vibration mitigation; SolidWorks and ANSYS (or equivalent) proficiency; FEA, modal analysis, GD&T, PLM/ERP (Agile, SAP); leadership and test/prototyping experience; travel <10%.
SolidWorks, ANSYS, FEA, CAD, PLM, ERP, Agile, SAP, GD&T, BOM
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Hardware Engineer
Vista, California, United States
$190k-$225k/yr OnsiteFull Time
15+ YOE15+ years hardware and fiber-optic communication experience; BS in Electrical Engineering required (MS/PhD preferred); experience with high-speed electronics, RF/PI/SI, PCB fabrication, test & measurement, firmware/FPGA, prototyping, and leading small technical teams; must be eligible to work in the US without restrictions.
FPGA, AI, PAM4, NRZ
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Product Development Engineer II
Rancho Santa Margarita, California, United States
$75k-$120k/yr OnsiteFull Time
5+ YOEBachelor's in Mechanical or Biomedical Engineering, 5+ years medical device or regulated industry experience, CAD/GD&T proficiency, DFM experience, prototype development, strong communication and technical writing.
CAD, GD&T, Product Lifecycle Management (PLM), Minitab
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Product Development Engineer II
Irvine, California, United States
$71k-$98k/yr OnsiteFull Time
3+ YOEBachelor's in Engineering, 3+ years medical device product development, SolidWorks and Microsoft Office proficiency, experience with prototyping, design for manufacturability, V&V testing, and knowledge of design controls and relevant standards.
SolidWorks, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Project, Minitab, Microsoft Visio
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OEM Sr. Product Design Engineer
Corona, California, United States
$120k-$140k/yr OnsiteFull Time
7+ YOEBachelor's in engineering, 7+ years OEM/high-volume product design experience, SolidWorks proficiency, DFM/DFMA and manufacturing process experience, prototype/testing and simulation knowledge.
SolidWorks, FEA, 3D printing, laser cutting
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Senior Applications Engineer - Emulation
Austin or San Diego or Costa Mesa or Wilsonville
$167k-$334k/yr HybridFull Time
5+ YOE5+ years in design/verification/emulation and prototyping of electronics chips and systems; BS or MS in EE, CE, CS or related fields.
Emulation platforms (Veloce, Palladium, Zebu), SystemVerilog, Verilog, VHDL, SystemC, C, C++, Perl, Python, XML, JSON
4d
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Mechanical Design and Manufacturing Engineer
Riverside or Irvine
$80k-$140k/yr OnsiteFull Time
3+ YOERequires 3+ years of mechanical design experience, composites expertise, CAD proficiency, prototyping and fabrication skills, and a bachelor's degree in mechanical engineering or related field or equivalent experience.
CAD, SolidWorks, CAD/CAM, PLM, FEA, CNC, OSHA, PPE
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PCB Design Engineer
Foothill Ranch, California, United States
$115k-$145k/yr OnsiteFull Time
4+ YOE4+ years PCB design experience, proficiency with Altium Designer, multilayer PCB layout, analog/digital circuit knowledge, prototype bring-up, and lab test equipment.
Altium Designer, Draftsman, OutputJob, LTspice, Micro-Cap, Simulink, Gerber, Oscilloscope, Multimeter, Function Generator, Power Supply
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Senior Principal Mechanical Engineer (HTI) - JJMT Electrophysiology
Irvine, California, United States
$122k-$213k/yr OnsiteFull Time
10+ YOEBachelor’s in engineering required (Master’s/PhD preferred); 10+ years medical device R&D with early-stage incubation and catheter/device design; prototyping and validation experience; leadership and cross-functional collaboration.
SolidWorks, AutoCAD, PMM
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Senior Principal Mechanical Engineer (HTI) - JJMT Electrophysiology
Irvine, California, United States
$122k-$213k/yr OnsiteFull Time
10+ YOEBachelor's in engineering required (master/PhD preferred); 10+ years medical device R&D with experience in early-stage incubation, prototype development, miniaturization, and catheter technologies; leadership and cross-functional collaboration skills.
SolidWorks, AutoCAD, DTV, DTQ
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