392 mechanical systems engineer jobs at 172 companies in Downey, CA
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Electro-Mechanical Systems Engineer
Monrovia, California, United States
$70k-$110k/yr OnsiteFull Time
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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Mechanical Engineer, Fluid Systems
El Segundo, California, United States
$108k-$150k/yr OnsiteFull Time
2+ YOEBachelor’s in Mechanical/Materials/Aeronautical/Civil/Structural engineering; 2+ years in designing, building, and testing fluid systems; strong fluid dynamics and heat exchanger knowledge; 100% onsite at El Segundo, CA.
MATLAB, Python, Finite Element Analysis (FEA)
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Mechanical Systems Engineer, Exterior Sensor Integration
Long Beach, California, United States
$130k-$145k/yr OnsiteFull Time
5+ YOEBachelor's in engineering,5+ years automotive mechanical experience with ADAS/autonomy sensor integration,GD&T and tolerance expertise,DFMEA/DVP&R ownership,prototype and validation experience.
CATIA V5, 3DEXPERIENCE, Siemens NX, Teamcenter
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Principal Mechanical Engineer - Launcher Systems
Los Angeles, California, United States
$180k-$230k/yr OnsiteFull Time
10+ YOE10+ years in aerospace/defense mechanical design and system integration; BS in Mechanical Engineering; launcher systems experience; US citizenship and ability to obtain security clearance.
SolidWorks, CAD
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Sr Advanced Systems Engineer - Mechanical Systems
Torrance, California, United States
$133k-$167k/yr HybridFull Time
5+ YOEBachelor's in a technical discipline and minimum 5 years mechanical systems engineering experience; systems integration, V&V, and product lifecycle knowledge valued.
3mo
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Mechanical Engineer, Marine Systems
El Segundo, California, United States
$130k-$210k/yr OnsiteFull Time
Oceanus Maritime Technologies: Building the operating platform for the modern maritime world.
4+ YOEBachelor's degree or higher; 4+ years in mechanical/electrical system design, integration, and testing in real environments; CAD, wiring, and marine exposure; travel up to ~25%.
3D CAD, SolidWorks, NX, Creo, GD&T
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Mechanical Engineer, Thermal Control Systems II
Long Beach, California, United States
$112k-$159k/yr OnsiteFull Time
5+ YOEBachelor's in mechanical engineering; 5+ years hardware experience with fluid systems; design, fabrication, testing experience.
NX, GD&T, ANSYS, FEMAP
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Senior Mechanical Engineer, Warfighter Systems
Mountain View or Costa Mesa
$160k-$185k/yr OnsiteFull Time
7+ YOEBachelors in engineering, 7+ years mechanical engineering experience, CAD skills, detailed mechanical design for metallics/composites, ergonomics, structural/thermal analysis, manufacturing knowledge, and eligibility for U.S. security clearance.
Lattice OS, NX, Teamcenter, FEA
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Mechanical Engineer
Hawthorne, California, United States
$123k-$150k/yr OnsiteFull Time
2+ YOEBachelor's degree in engineering; 2+ years mechanical systems experience; CAD and FEA; design for manufacturing and GD&T.
CAD software, Finite Element Analysis (FEA) software
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Mechanical Engineer
Carson or Torrance
$110k-$137k/yr OnsiteFull Time
3+ YOEBachelor's degree in mechanical engineering or related field, 3+ years of design engineering experience, 3+ years with SolidWorks or CAD, FEA, systems engineering, and high-rate production design experience.
SolidWorks, PDMS, NX, Creo, AutoCAD, FEA, BLDC, PCB, PCBA, DFM/DFX, E-Verify
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Mechanical Engineer
Irvine or Los Angeles
$93k-$132k/yr OnsiteFull Time
6+ YOEBachelor's degree in Mechanical Engineering; minimum 6 years in mechanical and plumbing design for commercial or institutional buildings; PE license; experience with building systems; proficiency with MS Office and design software.
MS Office, Trane TRACE, Manufacturer selection software
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Mechanical Engineer
Carson, California, United States
$110k-$137k/yr OnsiteFull Time
3+ YOEBachelor’s degree in mechanical engineering or related field, 3+ years of design engineering experience, 3+ years with SolidWorks or CAD platforms, systems engineering, FEA, and high-rate production design experience.
SolidWorks, PDMS, NX, Creo, AutoCAD, FEA, PCB, BLDC, E-Verify
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Mechanical Engineer
Torrance, California, United States
$110k-$140k/yr OnsiteFull Time
5+ YOEB.S. in Mechanical Engineering, 5+ years R&D/product design experience with electro-mechanical or optical systems, advanced solid modeling (SolidWorks/Pro-E/CATIA), GD&T, manufacturing processes, and mechanical/thermal simulation (ANSYS) preferred.
SolidWorks, Pro-E, CATIA, ANSYS
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Senior Mechanical Engineer
Tustin, California, United States
$140k-$200k/yr HybridFull Time
10+ YOEBachelor’s in Mechanical Engineering; 10+ years in mechanical systems design/management; client engagement; PE preferred.
Revit, Navisworks, Energy Soft, Trace energy modeling
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Mechanical Engineer
Irvine or Los Angeles
OnsiteFull Time
6+ YOEBachelor's in Mechanical Engineering, PE license required for the job location, experience in mechanical/plumbing system design for commercial or institutional buildings, proficiency with Microsoft Office and Trane TRACE; master's preferred and 6+ years experience desired.
Microsoft Office, Trane TRACE
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Mechanical Engineer I (ECS) - Defense Systems Division
Irvine, California, United States
$71k-$117k/yr OnsiteFull Time
0+ YOEBachelor's degree in mechanical engineering, 0–3 years designing mechanical components or subsystems, ASME Y14.5M, thermodynamics, mechanical design, communication, Microsoft Office, and U.S. citizenship required.
Microsoft Office, Microsoft Outlook, Microsoft Excel, Microsoft Word, Microsoft PowerPoint, SolidWorks
3w
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Mechanical Engineer, Components
El Segundo, California, United States
$115k-$150k/yr OnsiteFull Time
1+ YOEBachelor's in mechanical engineering or related,1+ years designing and building mechanical hardware,experience with fluid/gas/thermal systems and test instrumentation.
pressure transducers, thermocouples, resistance temperature detectors, relays, solenoid valves
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Mechanical Engineer I
Irvine, California, United States
$76k-$102k/yr OnsiteFull Time
1+ YOEUS work authorization required; Bachelor's in mechanical engineering; 1+ year engineering experience in R&D or manufacturing; SolidWorks and systems integration experience; able to read electrical/mechanical drawings.
SolidWorks, Microsoft Project, Microsoft Access, Microsoft Excel, Microsoft PowerPoint
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Mechanical Engineer
Los Angeles, California, United States
OnsiteFull Time
6+ YOEB.S. in mechanical/aerospace engineering, 6+ years designing flight structures or mission-critical systems; NX and Teamcenter experience, GD&T proficiency, hands-on builder, and U.S. Person eligible for SECRET clearance.
NX, Teamcenter
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Principal Mechanical Engineer
El Segundo or Los Angeles
$175k-$215k/yr OnsiteFull Time
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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