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486 prototype engineer jobs at 236 companies in Sunnyvale, CA

2d
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frog Product Prototype Developer (Fixed Term)
San Francisco or Boulder
$72k-$135k/yr OnsiteFull Time, Contract
Capgemini
CapgeminiEuronext Paris: CAP: Provides global IT consulting and digital transformation services.
3+ YOEBS in Mechanical Engineering or equivalent hands-on experience; 3+ years fabrication/prototyping with softgoods or consumer products; 3D CAD, DFM/DFA, FAI, ASME Y14.5 familiarity; portfolio encouraged.
3D CAD, DFM, DFA, First Article Inspection (FAI), ASME Y14.5
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2w
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Prototype & Test Engineering Intern, New Product Development
San Francisco, California, United States
$30-$35/hr OnsiteInternship, Full Time
Eight Sleep
Eight Sleep: Develops smart mattresses and temperature-regulated sleep technology.
Engineering background with hands-on prototyping and troubleshooting of electromechanical systems; experience with multimeters, oscilloscopes, command-line utilities; BS (or expected BS) in engineering required, MS preferred; ability to lift up to 50 lbs.
Multimeter, Oscilloscope, Command-line utilities, Claude
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3mo
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Robot Prototype Technician
San Francisco, California, United States
OnsiteFull Time
Physical Intelligence
Physical Intelligence: Creating foundation models for general-purpose robot intelligence.
2+ YOE2+ years prototyping technician experience; electromechanical assembly; soldering; CAD; diagnostics; teamwork.
SOLIDWORKS, Onshape, Soldering, Wiring, Oscilloscopes, Multimeters, PLCs
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4w
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ADAS Hardware Engineer - Prototype Vehicle Build
San Jose, California, United States
$155k-$160k/yr OnsiteFull Time
Bertrandt
BertrandtXetra: BDTG: Provides engineering, development, and testing services for manufacturers.
3+ YOEBSc in engineering, 3+ years prototype vehicle or hardware integration experience, hands-on workshop build experience, CAD and electrical schematic proficiency, familiarity with wiring harnesses, CAN/Ethernet, JIRA, ability to travel occasionally, valid CA driver’s license.
JIRA, CAD, CATIA, NX, CAN, Ethernet
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1w
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Silicon Prototyping Engineer
Cupertino, California, United States
OnsiteFull Time
Apple
AppleNASDAQ: AAPL: Designs and sells consumer electronics, software, and online services.
Hiring engineers at multiple experience levels to join the prototyping team to help deliver high-quality functional products to customers.
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1mo
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Senior FPGA Prototyping Platform Engineer
Santa Clara, California, United States
$168k-$311k/yr OnsiteFull Time
NVIDIA
NVIDIANASDAQ: NVDA: Designs GPU-accelerated computing and artificial intelligence hardware.
7+ YOEBS in Electrical/Computer Engineering with 7+ years FPGA prototyping or MS with 5+ years; strong FPGA prototyping, lab, and debugging skills.
Synopsys Protocompiler, Xilinx Vivado, ChipScope, Oscilloscopes, Logic Analyzers, Protocol Analyzers
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2mo
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Research Engineer
Palo Alto, California, United States
$120k-$140k/yr OnsiteFull Time
Subsense
Subsense: Developing non-surgical, nanoparticle-based brain-computer interfaces.
0+ YOEDesign and build hardware/software systems; develop prototypes; integrate hardware, software, and control components; perform engineering tests.
MATLAB, Python, COMSOL, ANSYS
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1w
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Mechanical Engineer
San Francisco, California, United States
$110k-$140k/yr OnsiteFull Time
Glacier
Glacier: Builds AI-powered robots for automated sorting in recycling facilities.
3+ YOEBS/MS in Mechanical Engineering, 3+ years engineering experience, structural design and FEA, CAD (Onshape/SolidWorks), DFM/GD&T, hands-on prototyping and manufacturing experience.
Onshape, SolidWorks, FEA, GD&T
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2mo
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Founding Design Engineer
San Francisco, California, United States
$160k-$200k/yr RemoteFull Time
Lunon
Lunon: AI-native platform providing automated consulting and diligence services.
Strong design and engineering skills; proven ability to prototype and ship; excellent communication and empathy.
Framer, Figma, Claude Design, Claude Code, Cursor
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3mo
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Mechanical Engineer - Integration & Test
San Jose, California, United States
$120k-$175k/yr OnsiteFull Time
Figure
Figure: Develops autonomous humanoid robots for commercial and residential tasks.
2+ YOE2+ years mechanical engineering; degree in mechanical/biomechanical/robotics/mechatronics; CAD; prototyping; documentation.
3D CAD, GD&T, CATIA V6, FEA, Python, MATLAB
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2mo
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Senior Mechanical Engineer
Oakland, California, United States
$70k-$150k/yr OnsiteFull Time
Arxlight
Arxlight: Developing next-generation autonomous drones for security and defense applications.
4+ YOEBachelor's in Mechanical Engineering with 4+ years of experience; CAD proficiency; design, analysis, and prototyping; strong problem-solving and communication.
CAD, SolidWorks, AutoCAD, Creo, FEA, CFD
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3mo
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Mechanical Engineer
San Francisco, California, United States
OnsiteFull Time
Medra
Medra: Builds autonomous robots and AI for scientific research.
BS/MS in Mechanical Engineering or related, hands-on hardware prototyping, CAD design, testing, and production experience; on-site in San Francisco; flexible, hands-on contributor.
CAD, PLM, Prototyping, Manufacturing
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1mo
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Sr. Mechanical Engineer
Fremont, California, United States
OnsiteFull Time
Anyware Robotics
Anyware Robotics: Develops autonomous mobile robots for warehouse and logistics automation.
2+ YOEBachelor's in Mechanical/Mechatronics Engineering, 2+ years industry experience, SolidWorks and GD&T experience, hands-on prototyping and manufacturing knowledge, leadership of junior engineers, Mandarin preferred.
SolidWorks
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2mo
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Hardware Engineer, Materra
Mountain View, California, United States
$159k-$239k/yr OnsiteFull Time
X, The Moonshot Factory
X, The Moonshot FactoryNASDAQ: GOOGL: Develops early-stage technologies and experimental projects.
Senior hardware engineer with experience in HW automation, actuation, sensor and imaging integration, system integration from prototype to deployment, and leading or mentoring engineers; MS or PhD in STEM preferred.
TensorFlow, Google Cloud Storage, Google Compute Engine, BigQuery, Dataflow, Linux
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2mo
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System Test & Validation Engineer II
Palo Alto, California, United States
$115k-$145k/yr OnsiteFull Time
Pivotal
Pivotal: Manufactures personal electric vertical takeoff and landing (eVTOL) aircraft.
Hands-on prototyping, fabrication, and integration of prototype systems; CAD design; 3D printing and composite layup; engine integration experience.
CATIA, NX, 3D printing (FDM, SLA), wet layup composite fabrication
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2mo
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Test Engineer
Akron or Mountain View
$38-$45/hr OnsiteContract
LTA Research & Exploration
LTA Research & Exploration: Develops and builds next-generation zero-emission rigid airships.
3+ YOEContract-based, 6-month program seeking engineers in Mechanical, Software, or GNC with 3+ years in aerospace/robotics; experience with HIL testing and flight prototyping; strong collaboration.
CAD, C++, Python, IMU, GPS, Barometric, Embedded Systems
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2mo
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Actuation Engineer, Motor Design
Palo Alto, California, United States
OnsiteFull Time
Mind Robotics
Mind Robotics: Motor design and electromagnetic engineering for compact robots.
BS/MS/PhD in Electrical or Mechanical Engineering; strong EM simulation; experience taking a motor from concept to prototype.
Ansys Maxwell, Motor-CAD, CAD (CATIA NX)
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1mo
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Hardware Systems Engineer
Cambridge or San Francisco
$105k-$150k/yr OnsiteFull Time
Lumafield
Lumafield: Accessible industrial CT scanners and cloud-based analysis software
3+ YOEHands-on electro-mechanical hardware engineer with electronics, embedded firmware, and system integration experience; capable of bringing prototypes to shipping.
MCAD, ECAD, Embedded Firmware, System Architecture, PCB Design, C/C++
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1w
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Thermal Engineer
San Francisco, California, United States
OnsiteFull Time
Orbital
Orbital: Builds AI-powered data center hardware and advanced materials.
5+ YOEBachelor's in mechanical/chemical engineering,5+ years experience in single/two-phase heat transfer or refrigeration,thermodynamic analysis,hands-on prototyping,lab testing,CAD and simulation experience.
CFD, FEA, CAD
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1mo
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Mechanical Engineer
Fremont, California, United States
$110k-$130k/yr OnsiteFull Time
Nova
NovaNASDAQ: NVMI: Provider of metrology and process control solutions for semiconductors.
1+ YOEBS in Mechanical Engineering, 1-3+ years in semiconductor equipment; SolidWorks and SolidWorks PDM; GD&T, FEA, high-vacuum and precision optics experience; prototype, test, and supplier management.
SolidWorks, SolidWorks PDM, FEA, GD&T
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