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97 mechanical systems engineer jobs at 55 companies in Oxnard, CA

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Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
Help us #BeatIndeed & #BeatLinkedIn
1mo
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Mechanical Engineer, Fluid Systems
El Segundo, California, United States
$108k-$150k/yr OnsiteFull Time
Radiant
Radiant: Designs and manufactures portable, mass-produced nuclear microreactors.
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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2mo
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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, Components
El Segundo, California, United States
$115k-$150k/yr OnsiteFull Time
Forge Atomics
Forge Atomics: A developer of advanced reactor technology working to scale nuclear fission for reliable, low‑carbon energy.
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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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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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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3mo
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Senior Mechanical Engineer
Calabasas, California, United States
$124k-$207k/yr OnsiteFull Time
Keysight Technologies
Keysight TechnologiesNYSE: KEYS: Provides electronic design, test, and simulation software and hardware.
6+ YOEBS degree in Mechanical and Electrical Engineering; 6+ years experience; proven product development; strong design and problem-solving; experience with electro-mechanical systems and thermal management; SolidWorks proficiency; good English communication; hands-on tooling experience.
SolidWorks, SolidWorks Flow Simulation, ANSI drafting standards
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3mo
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Senior Mechanical Engineer
Calabasas, California, United States
$124k-$207k/yr OnsiteFull Time
Keysight Technologies
Keysight TechnologiesNew York Stock Exchange: KEYS: Manufactures hardware and software for electronic test and measurement.
6+ YOEBS in Mechanical Engineering with 6+ years experience; product development from concept to production; strong design and problem solving; SolidWorks; thermal management and electro-mechanical systems; on-site collaboration in Calabasas.
SolidWorks, SolidWorks Flow Simulation
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2mo
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Mechanical Test Engineer
El Segundo, California, United States
$100k-$130k/yr OnsiteFull Time
The Advanced Manufacturing Company of America
The Advanced Manufacturing Company of America: Manufacturer of critical components for aerospace and defense platforms.
1+ YOEBachelor’s or advanced degree in aerospace, mechanical, manufacturing engineering, or engineering physics; 1+ years in manufacturing/design/test; GD&T knowledge; experience with fluid/electrical systems; project management and communication skills.
GD&T, Python, MATLAB, Siemens NX, Test instrumentation
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Mechanical Systems Design & Analysis Engineer (Thermal) - (Associate, Experienced, or Lead)
El Segundo, California, United States
$91k-$184k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.
2+ YOEBachelor's in engineering, thermal/heat transfer experience, ability to obtain Tier 5 US security clearance, experience with thermal analysis and system engineering.
Thermal Desktop, SINDA, CREO
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2mo
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Sr. Mechanical Engineer - Turbomachinery
El Segundo, California, United States
$150k-$175k/yr OnsiteFull Time
Arbor Energy
Arbor Energy: Building advanced power systems for clean, carbon-negative electricity.
3+ YOE3+ years in turbomachinery design or mechanical systems; experience with ANSYS; NX; bolted joints, seals, and flange design.
NX, ANSYS, CAD
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Mechanical Engineer, Integration
Oxnard, California, United States
$150k-$200k/yr OnsiteFull Time
Swarm Aero
Swarm Aero: Aerospace developing autonomous UAV swarms
5+ YOE5+ years avionics or aircraft electrical engineering; hands-on electrical system design; wiring harness and power distribution experience; proficiency with avionics integration and flight test
RapidHarness, Capital, Artifact, Solidworks Electrical, NX Electrical, Python
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Mechanical Engineer - Onsite - Chatworth, CA
Chatsworth, California, United States
OnsiteFull Time
GP Strategies
GP Strategies: Provides global workforce transformation and managed learning services.
Bachelor's in Mechanical Engineering required; experience in aerospace/pressure systems with leadership/project responsibilities; expertise in ASME pressure vessel and piping codes, cycle life analysis; proficiency with AutoCAD, SolidWorks, Microsoft Office and Project; PE and API certifications preferred; able to lift 50 lbs and travel up to 20%; ...
AutoCAD, SolidWorks, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Outlook, Microsoft Teams, Microsoft Project
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Mechanical Systems Design & Analysis Engineer (Thermal) - (Associate, Experienced, or Lead)
El Segundo, California, United States
$91k-$184k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
2+ YOEBachelor's in engineering, experience in thermodynamics/heat transfer or thermal analysis, ability to obtain US Tier 5 security clearance (US Citizenship required), experience with Thermal Desktop/SINDA/CREO.
Thermal Desktop, SINDA, CREO
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Senior RF Systems Engineer
El Segundo, California, United States
$200k-$240k/yr OnsiteFull Time
SAIC
SAICNYSE: SAIC: Provides engineering, IT, and mission support services to government.
12+ YOEDegree in engineering or technical field with 12+ years experience (Master's) or 14+ years (Bachelor's); experience with spaceborne RF payloads, signal processing, orbital mechanics, systems engineering, and ability to provide technical oversight; SCI-eligible security required.
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Senior RF Systems Engineer
El Segundo, California, United States
OnsiteFull Time
SAIC
SAICNASDAQ: SAIC: Provides government and defense clients with technology and engineering services.
12+ YOEMaster's +12 yrs or Bachelor's +14 yrs in EE or related field; expertise in spaceborne RF payloads, signal processing, orbital mechanics, systems engineering for payload development; TS/SCI clearance and willingness to polygraph required.
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Senior Mechanical Design Engineer
Simi Valley, California, United States
$120k-$140k/yr RemoteFull Time
ATC Automation
ATC Automation: Designs and builds custom automated assembly and test systems.
6+ YOE6+ years in automation/machine design; SolidWorks CAD; GD&T; pneumatic systems; mechanical fixtures/tools; strong communication.
SolidWorks, CAD software
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Senior RF Systems Engineer
El Segundo, California, United States
$190k-$220k/yr OnsiteFull Time
Space Systems Integration
Space Systems Integration: Provides systems engineering and technical advisory for aerospace missions.
12+ YOERequires TS/SCI clearance and polygraph, Bachelor's (EE/Physics/Math/Aerospace) +14 years or Master's +12 years, experience with spaceborne RF payloads, signal processing, orbital mechanics, systems engineering; strong communication; ~10% travel.
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Senior Avionics Mechanical Engineer
Playa Vista, California, United States
$137k-$193k/yr OnsiteFull Time
Inversion Space
Inversion Space: Building autonomous re-entry vehicles for global space-to-Earth cargo delivery.
5+ YOEBachelor's in engineering, 5+ years designing and testing electromechanical systems for aerospace/defense, proficiency in 3D CAD and FEA tools, environmental test and qualification experience, GD&T and technical documentation skills, strong cross-disciplinary collaboration.
NX, CATIA, SolidWorks, Ansys, Abaqus, NASTRAN, Python, MATLAB
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1mo
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Associate Mechanical Eng (51481)
Oxnard, California, United States
$71k-$124k/yr OnsiteFull Time
Haas Automation
Haas Automation: Manufactures CNC machine tools and industrial automation equipment.
2+ YOEBachelor's degree required (mechanical engineering preferred), 2-4 years engineering experience, proficiency with CAD, CNC programming/use, MRB systems, and spreadsheets; strong technical writing and problem-solving skills.
CAD, CNC, MRB
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2mo
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Facilities Mechanical Engineer (TERADYNE, Agoura Hills, CA) (Agoura Hills, CA, US)
Agoura Hills, California, United States
$82k-$130k/yr OnsiteFull Time
Teradyne
TeradyneNASDAQ: TER: Designs and manufactures automated test equipment and advanced robotics systems.
5+ YOEB.S. in Mechanical Engineering; 5+ years in facilities mechanical engineering; HVAC, fluid systems, building automation; CAD (AutoCAD, MicroStation); strong MS Office; good communication; PE or EIT desirable; relocation not offered; visa sponsorship not available.
AutoCAD, MicroStation, Microsoft Office Suite
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