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61 prototype engineer jobs at 41 companies in Lancaster, CA

3mo
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Project Engineer – Prototype Aircraft and Special Projects
Adelanto, California, United States
$81k-$142k/yr HybridFull Time
General Atomics
General Atomics: Designs and manufactures unmanned aircraft and nuclear technology systems.
3+ YOEBachelor's/master's/PhD in engineering or equivalent experience; 3+ years engineering experience; ability to obtain DoD Secret clearance; proficiency with Microsoft Project, Excel, PowerPoint; experience with composite structures and cross-functional project leadership.
Microsoft Project, Microsoft Excel, Microsoft PowerPoint
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2mo
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Senior Research and Prototyping Engineer
Los Angeles, California, United States
OnsiteFull Time
Arcturus
Arcturus: Develops carbon nanomaterial-infused metal composites for high-performance conductors.
3+ YOEHands-on prototyping and hardware engineering; CAD design; electrical test support; strong documentation.
CAD (Onshape), Machining, 3D Printing, Sensors, DAU/data acquisition, Basic electronics, Lab instrumentation
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1mo
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Electronics Engineer
Pasadena, California, United States
OnsiteFull Time
Caltech
Caltech: Provides university-level education and scientific research services.
4+ YOEB.S. in electronics engineering (or 4 years equivalent), experience with electronic circuits, microcontroller programming, soldering/prototyping, testing procedures, strong communication and organizational skills.
Arduino, SolidWorks, Altium
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Manufacturing Engineer
Victorville, California, United States
$85k-$170k/yr OnsiteFull Time
Mach Industries
Mach Industries: Designs and manufactures autonomous unmanned aerial vehicles for defense.
1+ YOE1+ years in mechanical engineering with focus on designing/prototyping mechanical systems; strong CAD (NX/SolidWorks); programming (Python, MATLAB, C++); Bachelor in Mechanical, Aerospace, or Electrical Engineering; hands-on hardware development experience.
NX, SolidWorks, Python, MATLAB, C++
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Mechanical Engineer III
Irwindale, California, United States
$100k-$140k/yr OnsiteFull Time
Georg Fischer
Georg FischerSIX Swiss Exchange: GF: Manufacturer of piping systems and industrial flow solutions.
5+ YOEBachelor’s or Master’s degree in Mechanical Engineering, Electrical Engineering, Mechatronics; 5+ years in product development, preferably sensors and automation; CAD (Siemens NX or SolidWorks); prototyping and assembly experience.
Siemens NX, SolidWorks, Microsoft Office, 3D printing, PLC programming, Sensors
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Product Development Engineer
Los Angeles, California, United States
$78k-$88k/yr OnsiteFull Time
Spin Master
Spin MasterTSX: TOY: Designs and manufactures toys and children's entertainment content.
2+ YOEDesign and engineer toy/product portfolios from concept to production; prototyping; manufacturing support; cost and performance optimization; travel.
PLM tools
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Integration Engineer
Mojave, California, United States
$100k-$135k/yr OnsiteFull Time
JetZero
JetZero: Develops fuel-efficient blended-wing body aircraft for sustainable flight.
5+ YOE5+ years in aerospace manufacturing or R&D, bachelor’s degree in engineering, experience with safety and quality management, knowledge of manufacturing processes, strong writing and communication skills; prototyping and hands-on experience desired.
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Engineer, Manufacturing
Sylmar, California, United States
$101k-$120k/yr OnsiteFull Time
Mason
Mason: Designs and manufactures engineered control products and subsystems for aerospace and defense applications.
2+ YOEBachelor's in engineering, 2+ years manufacturing/design experience, CAD and analysis software familiarity, rapid prototyping and electronic packaging experience, LEAN experience, strong communication and project management skills, willingness to travel.
CAD, LEAN
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Senior Engineer – Mechanical Engineering
Simi Valley, California, United States
$101k-$153k/yr OnsiteFull Time
AeroVironment
AeroVironmentNASDAQ: AVAV: Designs and manufactures unmanned aircraft and tactical missile systems.
5+ YOEBachelor's in Mechanical or Aerospace Engineering,5+ years designing complex mechanical systems,prototyping and electro-mechanical experience,ASME drawing practices,Solidworks and Microsoft Office proficiency.
Solidworks, Microsoft Office
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Senior Mechatronics Engineer
Denver or Charleston or Phoenix or Houston or Reading or Baton Rouge or Monrovia
$135k-$199k/yr HybridFull Time
Worley
WorleyAustralian Securities Exchange: WOR: Global professional services for energy, chemicals, and resources sectors.
7+ YOEBachelor's in engineering, 7+ years mechatronics/robotics experience, expertise in CAD, embedded systems, PLCs, sensors, and programming (Python, C++, MATLAB); proven project leadership and prototype testing experience.
SolidWorks, AutoCAD, Python, C++, MATLAB, Simulink, ROS, Gazebo, Nvidia Isaac Sim, PLCs
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2w
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Senior Mechanical Design Engineer
Los Angeles, California, United States
$150k-$180k/yr OnsiteFull Time
LettrLabs
LettrLabs: Designs and builds handwriting robotics and production automation systems for direct mail manufacturing.
5+ YOE5+ years mechanical design experience; bachelor’s in mechanical engineering; hands-on with motion systems, sheet metal, DFM/DFA, FEA, prototyping, vendor collaboration, and mentorship of junior engineers.
SolidWorks, NX, CAD, PDM, PLM, FEA, GD&T (ASME Y14.5)
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Electrical Engineer (Lasercom)
Los Angeles, California, United States
$140k-$170k/yr HybridFull Time
Observable Space
Observable Space: Developing integrated hardware and software for persistent space observation.
2+ YOE2+ years electrical engineering experience; PCB design, wire harnessing, circuit simulation, signal integrity, and prototype bring-up; experience with Altium and LTSpice; strong debugging and EMI/EMC knowledge.
Altium, LTSpice, Hyperlynx, SIwave, ADS, HFSS, Oscilloscope, Logic Analyzer, Spectrum Analyzer, Multimeter
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Principal Mechanical Engineer
El Segundo or Los Angeles
$175k-$215k/yr OnsiteFull Time
CHAOS Industries
CHAOS Industries: Develops advanced radar and sensing systems for modern defense.
8+ YOEBachelor's in Mechanical Engineering, 8+ years platform-level mechanical design and system integration for aerospace/defense, SolidWorks and FEA experience, prototyping skills, MIL‑STD familiarity, and ability to obtain a U.S. security clearance.
SolidWorks, NASTRAN, ABAQUS, ANSYS, COMSOL
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Applied AI Engineer
Los Angeles, California, United States
$100k-$200k/yr OnsiteFull Time
General Matter
General Matter: Produces enriched uranium and nuclear fuel for power generation.
BS or higher in engineering, physics, chemistry, applied math, or related technical field; proficiency in Python; experience building AI tools; strong AI and engineering fundamentals; ships prototypes; able to work across neutronics, safety, data, and manufacturing.
Python, AI tooling, LLMs, AI agents
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Lead Engine Cooling System Engineer
Novi or Charlotte or San Francisco or Los Angeles or New York City
$160k-$193k/yr OnsiteFull Time
Scout Motors
Scout Motors: Designs and manufactures all-electric rugged SUVs and trucks.
12+ YOEBachelor’s in mechanical engineering (Master's preferred), 12+ years engineering experience, 8 years thermal systems design, leadership experience, simulation and prototyping/testing skills, strong analytical and communication abilities.
CFD, 1D thermal-fluid models
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4w
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Founding Mechanical Engineer
Los Angeles, California, United States
$135k-$215k/yr HybridFull Time
Pillar Space
Pillar Space: Building high-stakes, flight-grade autonomous space hardware systems.
2+ YOEBachelor's in mechanical/aerospace engineering, 2+ years designing and testing complex mechanical or electromechanical hardware, proficiency with professional CAD (NX, CATIA, Creo, SolidWorks), hand calculations, tolerance analysis and FEA, GD&T and ASME Y14.5 familiarity, hands-on prototyping experience.
NX, CATIA, Creo, SolidWorks, PLM
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2w
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Mechanical Design Engineer
City of Industry, California, United States
$95k-$105k/yr OnsiteFull Time
Nelson Miller Group
Nelson Miller Group: Design and manufacture custom human-machine interface components.
3+ YOEBachelor's in Mechanical Engineering (or equivalent), minimum 3 years mechanical design experience, CAD proficiency (SolidWorks/Creo/NX/Fusion 360), FEA and prototyping experience, knowledge of GD&T and manufacturability, ability to travel ~20%.
SolidWorks, Creo, NX, Fusion 360, FEA, Additive Manufacturing, 3D printing
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Mech Manufacturing Engineer, Amazon Leo for Government
Northridge, California, United States
OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
4+ YOE4+ years mechanical engineering experience; DFMA and design-for-manufacturability expertise; supplier collaboration and qualification experience; prototyping and production implementation experience; SolidWorks or Ansys preferred.
SolidWorks, Ansys, MES, programmable logic controller
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Senior/Staff/Principal Hardware Engineer - Robotic Hardware
Los Angeles or Malibu or Santa Monica
$110k-$185k/yr OnsiteFull Time
Horizon Surgical Systems
Horizon Surgical Systems: AI-driven robotic systems for ophthalmic microsurgery
5+ YOEExperienced hardware engineer for robotic systems; BS+5/MS+3 years minimum in robot product development; PhD may substitute; strong CAD/analysis and hands-on prototyping.
SolidWorks, SolidWorks PDM, GD&T, Python, MATLAB, C/C++, PCB design, Electrical design
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2w
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Electro-Mechanical Systems Engineer
Monrovia, California, United States
$70k-$110k/yr OnsiteFull Time
ChromoLogic
ChromoLogic: Develops and commercializes disruptive medical, aerospace, and security technologies.
Bachelor's or Master's in engineering, hands-on experience integrating mechanical/electrical/material systems, SolidWorks and FEA proficiency, ability to build and test hardware prototypes, strong problem-solving and documentation skills.
SolidWorks, FEA, CAD
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