83 prototype engineer jobs at 51 companies in Fillmore, CA

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Electrical Engineer-Prototype Design
Memphis or Pflugerville or Lakewood or Roanoke or Norfolk or Carlstadt or Santa Monica or Colorado Springs
$120k-$150k/yr OnsiteFull Time
Auto-Chlor System
Auto-Chlor System: Leases commercial dishwashers and provides chemical sanitation services.
5+ YOEBS in engineering or equivalent, 5+ years electrical/electronic design experience, embedded software/hardware experience, knowledge of NSF/CSA/UL and related codes, Autodesk Inventor preferred.
Autodesk Inventor
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Electrical Engineer-Prototype Design
Memphis or Pflugerville or Lakewood or Roanoke or Norfolk or Carlstadt or Santa Monica or Colorado Springs
$120k-$150k/yr OnsiteFull Time
Auto-Chlor System
Auto-Chlor System: Provider of commercial dishwashing systems and chemical sanitation solutions.
5+ YOEB.S. in engineering (or equivalent), 5+ years electrical/electronic design experience, embedded software/hardware experience, knowledge of NSF/CSA/UL and related codes, and Autodesk Inventor/CAD experience.
Autodesk Inventor
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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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Engineer II
Thousand Oaks, California, United States
$103k-$118k/yr HybridFull Time
Amgen
AmgenNASDAQ: AMGN: Develops and manufactures biotechnology medicines for serious diseases.
1+ YOEMaster's in Mechanical/Biomedical Engineering, ~1 year relevant experience in mechanical design, testing, prototyping, FEA, and technical documentation; SolidWorks and lab/test experience required.
SolidWorks, 3D CAD, Finite Element Analysis (FEA)
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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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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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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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Mechanical Engineer III
Irwindale, California, United States
$100k-$140k/yr OnsiteFull Time
Georg Fischer
Georg FischerSIX Swiss Exchange: GF: Manufacturer of piping, casting, and machining solutions.
5+ YOESenior mechanical/electrical/mechatronics engineer with 5+ years in product development, sensor/automation experience, CAD design, prototyping, and cross-disciplinary collaboration.
Siemens NX, SolidWorks, Microsoft Office, 3D printing, Rapid prototyping, PLC programming, electromechanical assembly, sensors
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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 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
4w
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Mechanical Engineer III
Camarillo, California, United States
OnsiteFull Time
HEICO
HEICONYSE: HEI: Manufactures specialty electronic components and niche aircraft parts.
3+ YOEBachelor's in Mechanical/Aerospace Engineering, minimum 3 years mechanical/electromechanical design experience, proficiency with CAD/FEA (SolidWorks preferred), GD&T knowledge, and strong interpersonal skills; hands-on prototyping and analysis experience.
CAD, FEA, SolidWorks, CNC
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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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Engineer - Mechanical II
Altadena, California, United States
$99k-$139k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
2+ YOEB.S. in Mechanical/Aerospace Engineering,2+ years developing and testing complex hardware,mechanism design and hands-on prototyping,CAD and analysis proficiency,ability to lead development through product lifecycle,US work authorization required.
Autodesk Inventor, ANSYS
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Analog Circuit Electrical Engineer
El Segundo, California, United States
$117k-$227k/yr OnsiteFull Time
The Aerospace Corporation
The Aerospace Corporation: Provides technical expertise and research for national space programs.
8+ YOEBachelor's in STEM,8+ years engineering experience (12+ for senior),analog circuit design,prototype development,mentoring,ability to obtain US security clearance.
Pspice, LTSpice
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Senior Mechanical Engineer
Redondo Beach, California, United States
$120k-$150k/yr OnsiteFull Time
Mycronic
MycronicNasdaq Stockholm: MYCR: Develops and manufactures high-precision electronics production equipment.
5+ YOEBachelors in mechanical engineering (master preferred). 5+ years mechanical design experience, 3D CAD proficiency, NPI/product development, prototyping, validation, testing, project management, cross-functional collaboration, and ability to travel internationally. U.S. work authorization required.
3D CAD software, CAD
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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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Senior Manufacturing Engineer - Space Solar
Hawthorne, California, United States
$145k-$180k/yr OnsiteFull Time
Starpath
Starpath: Manufacturing space-rated solar hardware and lunar mining robotics.
6+ YOEBachelor's in engineering, 6+ years manufacturing/process design experience from prototype to high-rate production, experience leading cross-functional technical work, and experience driving yield, rate, and automation.
SQL, FMEA, statistical process control (Cp/Cpk), electroluminescence imaging, IV-curve analysis, LIV/flash testing
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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