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245 prototyping engineer jobs at 146 companies in Fairfield, CA

3mo
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Mechanical Prototyping Technician
Richmond, California, United States
$36-$40/hr OnsiteFull Time
Ocean Power Technologies
Ocean Power TechnologiesNYSE American: OPTT: Provides autonomous maritime robotics and offshore renewable energy solutions.
3+ YOEUS citizenship; 3+ years fabrication/prototyping; hands-on with tools; CAD interpretation; able to work around boats/docks; fast-paced prototyping culture; overtime as needed.
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1w
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Sr. Prototyping Architect, AWS Prototyping and AI Customer Engineering (PACE)
Seattle or Santa Clara or Santa Monica or San Francisco or San Diego
$154k-$208k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
7+ YOEExpertise in cloud architecture, 7+ years designing/implementing/consulting on applications and infrastructure; AWS certs preferred; strong software development and AI/prototyping experience.
AWS, Bedrock, SageMaker, Q Developer, Cursor, Kiro, Cline, Windsurf
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Applications Engineer - FPGA Prototyping
San Diego or Austin or Boulder or Costa Mesa or Pasadena or Tempe or Wilsonville or Fremont
$167k-$334k/yr HybridFull Time
Siemens
SiemensXETRA: SIE: Manufactures industrial automation, infrastructure, and energy technology systems.
5+ YOE5+ years in design/verification/FPGA/ASIC or similar; BS/MS in EE/CE/CS; active experience with SystemVerilog/Verilog/VHDL, FPGA tools, scripting, simulation and customer-facing technical support.
SystemVerilog, Verilog, VHDL, SystemC, C/C++, Perl, Python, XML, JSON, proFPGA, HAPS, Xilinx Vivado, Altera Quartus, Questa, Incisive, VCS, OVM, UVM
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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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Senior Mechanical Design Engineer — Electric Motors
San Francisco, California, United States
$110k-$238k/yr OnsiteFull Time
DoorDash
DoorDashNASDAQ: DASH: On-demand delivery platform connecting consumers with local merchants.
3+ YOEMechanical engineering degree with 3+ years experience; strong CAD, 3D modeling; hands-on prototyping; hardware for outdoor/harsh environments; experience with motors or electromechanical systems preferred.
CAD, CNC, 3D Printing, FEA, Prototyping, Welding, Electrical wiring, Encoders
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Expert Software Engineer — Rapid System Prototyping & Integration
Santa Rosa or Santa Clara
$143k-$238k/yr OnsiteFull Time
Keysight Technologies
Keysight TechnologiesNew York Stock Exchange: KEYS: Manufactures hardware and software for electronic test and measurement.
8+ YOEBS/MS/PhD in CS/EE/CE; 8+ years in system integration and software/firmware for high-speed data streaming; proficient in modern C++ and embedded Linux; strong problem-solving and collaboration.
C++, Linux, Kernel Drivers, DPDK, RDMA, PCIe, FPGA, GPU, SmartNIC, CUDA, GPUDirect, Memory Management, Networking
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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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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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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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Expert Software Engineer — Rapid System Prototyping & Integration
Santa Rosa, California, United States
$143k-$238k/yr OnsiteFull Time
Keysight Technologies
Keysight TechnologiesNYSE: KEYS: Provides electronic design, test, and simulation software and hardware.
8+ YOEBS/MS/PhD in CS/EE/CE; 8+ years system integration and software/firmware development; strong C++ and embedded Linux; experience with high-speed data streaming, Ethernet, PCIe, and FPGA/IP integration.
Modern C++, Embedded Linux, Kernel drivers, Memory-mapped I/O, DPDK, RDMA/RoCE, PCIe, SmartNIC/DPU, SystemVerilog/VHDL, FPGA, Linux, GPU programming, DMA, Ethernet 100G/200G/400G, Python, CI/CD
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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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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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Mechanical Engineer
Davis, California, United States
$100k-$110k/yr OnsiteFull Time
Terabase Energy
Terabase Energy: Digital and automation platform for utility-scale solar plants.
2+ YOEBS in Mechanical Engineering, 2+ years relevant experience, proficiency in 3D CAD (SolidWorks preferred) and GD&T, familiarity with manufacturing processes and motion components, hands-on prototyping and strong communication.
SolidWorks, SolidWorks Simulation, ANSYS, ABAQUS, CAD, FMEA
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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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Manufacturing Engineer
Union City, California, United States
$82k-$90k/yr OnsiteFull Time
Mizuho OSI
Mizuho OSI: Designs and manufactures specialty surgical tables and positioning systems.
0+ YOEBachelor's in Mechanical, Electrical, or Industrial Engineering; 0-2 years experience; knowledge of manufacturing processes, lean methods, prototyping/troubleshooting, test protocols, SolidWorks and Microsoft Office; ability to travel to vendor sites.
SolidWorks, Windows, Microsoft Outlook, Microsoft Word, Microsoft Excel, Microsoft PowerPoint
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Hardware Engineer II
Fremont, California, United States
$100k-$115k/yr OnsiteFull Time
Legrand
LegrandEuronext Paris: LR: Global specialist in electrical and digital building infrastructures.
1+ YOEBachelor's degree in electrical/computer engineering, 1+ years hands-on experience, circuit and PCB design, prototyping, testing, troubleshooting, manufacturing familiarity, and cross-team communication skills.
git, oscilloscopes, multimeters, soldering tools
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Mechanical Engineer II
Petaluma, California, United States
$82k-$116k/yr OnsiteFull Time
AeroVironment
AeroVironmentNASDAQ: AVAV: Designs and manufactures unmanned aircraft and tactical missile systems.
2+ YOEBachelors in Mechanical or Aerospace Engineering (or equivalent), 2+ years designing complex mechanical/electro-mechanical systems, SolidWorks/ANSYS proficiency, prototyping and ASME drawing standards experience.
SolidWorks, SolidWorks Simulation, ANSYS, SolidWorks EPDM, Microsoft Office, 3D printing
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Power Electronics Engineer
Petaluma or Austin
$80k-$189k/yr OnsiteFull Time
Enphase Energy
Enphase EnergyNASDAQ: ENPH: Manufacturer of microinverter-based solar and energy storage systems.
1+ YOEM.S. or Ph.D. in Electrical Engineering, hands-on power electronics design experience, familiarity with advanced power semiconductors and magnetics, ability to translate simulation to prototypes.
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Staff Mechanical Engineer, Integration
Berkeley, California, United States
$148k-$194k/yr OnsiteFull Time
Form Energy
Form Energy: Developing multi-day batteries for grid-scale energy storage.
8+ YOEBachelor's in Mechanical Engineering (or related) with 8+ years mechanical design experience; prototyping, thermal modeling, manufacturing optimization, vendor leadership, and interdisciplinary integration experience.
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2mo
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Mechanical Engineer (Hands Team)
San Francisco, California, United States
OnsiteFull Time
Foundation Robotics
Foundation Robotics: Building general-purpose humanoid robots for industry and defense.
Strong mechanical engineering foundation; hands-on robotics experience; experience with complex assemblies, manufacturing processes; tendon-driven systems familiarity; sensor integration; prototyping.
CNC machining, Injection molding, Additive manufacturing, Stamping, Mechatronics, Tendon-driven systems, Sensor integration
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