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347 entry level mechanical engineer jobs at 173 companies in Mission Viejo, CA

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Mechanical Engineer - Entry Level
League City or La Porte or Alvin or Carson
OnsiteFull Time
INEOS Olefins & Polymers USA
INEOS Olefins & Polymers USA: Private North American chemical manufacturer producing olefins, polypropylene, polyethylene, polyethylene pipe, and oil and gas products.
Bachelor's degree in Mechanical Engineering, graduation by December 2026 or May 2027, and GPA of at least 3.0 required. Plant internship or cooperative education experience preferred.
CAD, Process Safety Management (PSM), Management of Change (MOC), HAZOP, Process Hazard Analysis (PHA)
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Mechanical Engineer Entry Level (Start Summer 2027)
Carlsbad, California, United States
$78k-$82k/yr OnsiteFull Time
Dennis Group
Dennis Group: Design-build engineering and construction firm for food processors.
0+ YOEBachelor of Science in Mechanical Engineering or related field; 0–3 years of relevant experience or schooling in HVAC, plumbing, fire protection, and mechanical calculations. AutoCAD, Revit, and FE/EIT preferred.
AutoCAD, Revit, P&ID, Building Management System (BMS)
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Mechanical Engineer, Level II
Torrance, California, United States
$115k-$140k/yr OnsiteFull Time
Verustruct
Verustruct: Public-benefit construction robotics developing automated systems for affordable, sustainable, safe housing.
2+ YOEBachelor's in mechanical/robotics/aerospace or related, ~2+ years designing and building mechanical or electromechanical hardware, CAD proficiency (Siemens NX or comparable), hands-on assembly/testing experience.
Siemens NX, SolidWorks, Creo, CATIA, Autodesk Inventor
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Engineer Mechanical (Level 2)
Redondo Beach, California, United States
$83k-$125k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Global aerospace and defense technology.
2+ YOEBS in STEM plus 2 years (or MS plus 0 years), experience with integration/test or manufacturing of space vehicle mechanical systems, active SCI clearance required.
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Engineer Mechanical (Level 2)
Redondo Beach, California, United States
$83k-$125k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Global aerospace and defense technology.
2+ YOEBachelor's in STEM plus 2 years (or MS plus 0 years), experience with space vehicle mechanical systems and integration/test, active SCI clearance, strong communication and leadership skills.
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Mechanical Engineer
El Segundo or Los Angeles
$110k-$138k/yr OnsiteFull Time
CHAOS Industries
CHAOS Industries: Redefining modern defense with a multi-product portfolio.
Bachelor's degree in mechanical engineering or related discipline, mechanical design experience, CAD proficiency, structural analysis exposure, communication skills, and ability to obtain a U.S. security clearance.
SolidWorks, Finite Element Analysis (FEA), NASTRAN, ABAQUS, ANSYS, Computational Fluid Dynamics (CFD), COMSOL, CNC
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Mechanical Engineer
Los Angeles, California, United States
$92k-$140k/yr OnsiteFull Time
Hermeus
Hermeus: Private U.S. defense aviation designing, building, and testing high-Mach and hypersonic aircraft for national-security customers.
1+ YOEBachelor’s degree in mechanical engineering, aerospace engineering, or physics; 1+ year of electromechanical design, analysis, and testing experience. CAD, FEA, PLM, prototyping, and cross-disciplinary systems experience preferred.
NX, Ansys, Teamcenter, CAD, FEA, PLM
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Mechanical Engineer II
Carlsbad, California, United States
$95k-$110k/yr HybridFull Time
Fluidra
FluidraBolsa de Madrid (BME): FDR: Public Spanish manufacturer and distributor of pool and wellness equipment serving residential and commercial markets worldwide.
2+ YOEBachelor's in mechanical engineering, 2+ years mechanical engineering experience, SolidWorks and FEA experience, strong communication, and willingness to travel domestically and internationally.
SolidWorks CAD software, FEA software
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Mechanical Engineer
Torrance, California, United States
$100k-$155k/yr OnsiteFull Time
GITAI Defense and Space LLC
GITAI Defense and Space LLC: U.S.-headquartered space robotics building robots for on-orbit servicing and lunar infrastructure construction.
1+ YOEBachelor's in Mechanical Engineering, 1+ years relevant experience, proficiency with mechanical CAD and drawings, hands-on assembly and testing, able to lift 40 lbs, weekend flexibility, willingness to travel up to 50%, U.S. work authorization and eligibility for government clearance.
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Mechanical Engineer
Torrance, California, United States
OnsiteFull Time
Vital Lyfe
Vital Lyfe: Portable water purification technology making clean drinking water from natural sources for people and communities.
1+ YOEBachelor's in engineering, 1+ years mechanical/electromechanical design experience, proficiency in CAD and FEA, hands-on hardware experience, ability to lift up to 50 lbs.
CAD, FEA
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Mechanical Engineer, Propulsion
Santa Ana, California, United States
$129k-$171k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology developing AI-powered autonomous military systems.
2+ YOEBS or MS in Mechanical Engineering and 2+ years of technical engineering experience or equivalent projects. Requires CAD, mechanical design, prototyping, fabrication, manufacturing, and US Person status.
CAD, CNC, 3D printing, NX, Teamcenter, Python, MATLAB
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Mechanical Engineer II
Pasadena, California, United States
$100k-$126k/yr OnsiteFull Time
Rocket Lab
Rocket LabNASDAQ: RKLB: End-to-end space delivering launch services and spacecraft.
2+ YOEBachelor’s degree in mechanical or related engineering and 2+ years’ mechanical engineering experience. Requires CAD, GD&T, tolerance analysis, manufacturing, hands-on hardware testing, and cross-functional collaboration.
SolidWorks, GD&T, finite element analysis
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Mechanical Engineer I
Irvine, California, United States
$76k-$102k/yr OnsiteFull Time
Iris Technology
Iris Technology: Privately held engineering firm making tactical power systems and space electronics for aerospace, defense, and government customers.
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 II
Pasadena, California, United States
$100k-$126k/yr OnsiteFull Time
Rocket Lab
Rocket LabNASDAQ: RKLB: End-to-end space delivering launch services and spacecraft.
2+ YOEBachelor's degree in mechanical, aerospace, mechatronics, robotics, or related engineering; 2+ years of mechanical engineering experience; SolidWorks or comparable CAD, GD&T, tolerance analysis, manufacturing, and hands-on hardware testing experience.
SolidWorks, CAD, GD&T, Finite Element Analysis
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Mechanical Engineer, Components
El Segundo, California, United States
$115k-$150k/yr OnsiteFull Time
Forge Atomics
Forge Atomics: Private American nuclear-energy building factory-made, water-cooled fission power plants for data centers and electric grids.
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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2mo
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Mechanical Engineer II
Laguna Hills, California, United States
$80k-$100k/yr OnsiteFull Time
Sonendo
SonendoOTCQX: SONX: Public dental technology developing GentleWave systems for endodontists treating tooth decay.
2+ YOEBachelor's in Mechanical Engineering with 2+ years experience (or advanced degree), skilled in mechanical design, 3D CAD modeling, prototyping, testing, design control in regulated industries, DOE exposure, and risk management.
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Engineer II, Mechanical - Sensors
Irvine, California, United States
$90k-$115k/yr OnsiteFull Time
Masimo
Masimo: Medical technology developing noninvasive patient-monitoring technologies for clinicians and patients worldwide.
2+ YOEBachelor’s degree in Mechanical Engineering or related discipline and 2+ years of mechanical engineering or product development experience. Requires 3D CAD, engineering drawings, prototyping, testing, and cross-functional collaboration.
3D CAD, SolidWorks, FEA
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Founding Mechanical Engineer
Los Angeles, California, United States
$135k-$215k/yr HybridFull Time
Pillar Space
Pillar Space: Private space-hardware startup building reusable satellites as rentable orbital infrastructure for companies conducting microgravity manufacturing.
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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Mechanical Engineer (Starship Avionics)
Hawthorne, California, United States
$100k-$135k/yr OnsiteFull Time
SpaceX
SpaceXNasdaq: SPCX: Designing, manufacturing, and launching advanced rockets and spacecraft.
1+ YOEBachelor's degree in mechanical, aerospace, systems, or electrical engineering; 1+ year of mechanical or electromechanical design and analysis experience, including internships or student projects.
CAD, FEA, 3D modeling, laser welding, Employee Stock Purchase Plan
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Engineer, Mechanical
Vista, California, United States
$90k-$110k/yr OnsiteFull Time
Leica Biosystems
Leica Biosystems: Private Danaher cancer-diagnostics providing anatomic and digital pathology solutions to laboratories and clinicians.
2+ YOEBachelor’s or master’s degree in engineering, physics, or a similar discipline, or equivalent experience; 2+ years of applicable engineering experience; SolidWorks or Creo experience; ability to travel globally and lift 35 lbs.
SolidWorks, Creo, CAD, GMP, ISO, FDA
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