NerosMechanical Engineer
Apply Torrance, CA
$100k–$160k / year
- Job type
- Mechanical & Physical Systems
- Seniority
- Mid-Level
- Sector
- Defense
Jobs/Mechanical & Physical Systems/Los Angeles
Mechanical & Physical Systems Jobs in Los Angeles
Mechanical & Physical Systems roles at companies building the future — in Los Angeles.
1,104 open roles · Updated Oct 30, 2026
1,104 jobs
Valar AtomicsLead Mechanical Designer, Turbomachinery
Apply Torrance, CA
$200k–$295k / year
- Job type
- Mechanical & Physical Systems
- Seniority
- Staff / Principal
- Sector
- Energy & Climate
Shield AISr. Staff Mechanical Engineer - BlueSky (R5825)
Apply Remote · Los Angeles, CA
$175k–$250k / year
- Job type
- Mechanical & Physical Systems
- Seniority
- Staff / Principal
- Sector
- Defense
Anduril IndustriesSenior Mechanical Engineer, Maneuver Air Defense
Apply Irvine, CA
$147k–$196k / year
- Job type
- Mechanical & Physical Systems
- Seniority
- Senior
- Sector
- Defense
True AnomalySenior Dynamics Analysis Engineer
Apply Denver, CO · Long Beach, CA
$135k–$200k / year
- Job type
- Mechanical & Physical Systems
- Seniority
- Senior
- Sector
- Aerospace
Varda SpaceSenior Ground Support Mechanical Design Engineer
Apply El Segundo, CA
$140k–$179k / year
- Job type
- Mechanical & Physical Systems
- Seniority
- Senior
- Sector
- Aerospace
CHAOS IndustriesPrincipal Mechanical Engineer
Apply El Segundo, CA
$160k–$260k / year
- Job type
- Mechanical & Physical Systems
- Seniority
- Staff / Principal
- Sector
- Defense
K2 SpaceSenior Photonics Engineer, Free-Space Optics
Apply Los Angeles, CA
$150k–$220k / year
- Job type
- Mechanical & Physical Systems
- Seniority
- Senior
- Sector
- Aerospace
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AMCAMechanical Engineering Intern (Summer 2027)
Apply El Segundo, CA
$62k–$104k / year
- Job type
- Mechanical & Physical Systems
- Seniority
- Intern
- Sector
- Manufacturing
Swarm AeroStructures Analyst
Apply Oxnard, CA
$155k–$210k / year
- Job type
- Mechanical & Physical Systems
- Seniority
- Senior
- Sector
- Defense
CastelionSenior Warhead Design Engineer
Apply Torrance, CA
- Job type
- Mechanical & Physical Systems
- Seniority
- Senior
- Sector
- Defense
CesiumAstroSenior Staff Thermal Analyst
Apply El Segundo, CA
$193k–$236k / year
- Job type
- Mechanical & Physical Systems
- Seniority
- Staff / Principal
- Sector
- Aerospace
Parallel SystemsVP of Hardware
Apply Los Angeles, CA
$250k–$350k / year
- Job type
- Mechanical & Physical Systems
- Seniority
- Executive
- Sector
- Transportation
Field AIMechatronics Engineer, Robotics Hardware
Apply Irvine, CA
$100k–$200k / year
- Job type
- Mechanical & Physical Systems
- Seniority
- Mid-Level
- Sector
- Robotics
Critical LoopOperations Engineer
Apply Long Beach, CA
$130k–$180k / year
- Job type
- Mechanical & Physical Systems
- Seniority
- Mid-Level
- Sector
- Energy & Climate
Apex SpaceStaff Materials Engineer (Organics)
Apply Los Angeles, CA
$170k–$225k / year
- Job type
- Mechanical & Physical Systems
- Seniority
- Staff / Principal
- Sector
- Aerospace
Relativity SpaceVehicle Structures Engineer I
Apply Long Beach, CA
$90k–$136k / year
- Job type
- Mechanical & Physical Systems
- Seniority
- Entry-Level
- Sector
- Aerospace
FluidstackMechanical Engineer, Thermofluids
Apply Austin, TX · San Francisco, CA · Los Angeles, CA
$210k–$260k / year
- Job type
- Mechanical & Physical Systems
- Seniority
- Senior
- Sector
- Compute & Semiconductors
Mach IndustriesStructural Dynamics & Aeroelasticity Engineer
Apply Huntington Beach, CA
$115k–$195k / year
- Job type
- Mechanical & Physical Systems
- Seniority
- Senior
- Sector
- Defense
Layup PartsMechanical Engineer
Apply Huntington Beach, CA
$100k–$160k / year
- Job type
- Mechanical & Physical Systems
- Seniority
- Senior
- Sector
- Manufacturing
WardstoneSenior Propulsion Engineer - Solid Rocket Motors
Apply El Segundo, CA
$140k–$170k / year
- Job type
- Mechanical & Physical Systems
- Seniority
- Senior
- Sector
- Aerospace
InversionAvionics Mechanical Engineer - Summer Internship 2027
Apply Playa Vista, CA
$79k–$85k / year
- Job type
- Mechanical & Physical Systems
- Seniority
- Intern
- Sector
- Aerospace
SpaceXTooling Engineer, Starship Components (Materials Engineering)
Apply Hawthorne, CA
$100k–$160k / year
- Job type
- Mechanical & Physical Systems
- Seniority
- Mid-Level
- Sector
- Aerospace
AnySignalVP of Engineering, Ground Hardware
Apply Los Angeles, CA
$240k–$325k / year
- Job type
- Mechanical & Physical Systems
- Seniority
- Executive
- Sector
- Aerospace
Arc BoatsStaff Mechanical Engineer, Powertrain Engineering
Apply Torrance, CA
- Job type
- Mechanical & Physical Systems
- Seniority
- Staff / Principal
- Sector
- Transportation
Related searches
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Frequently asked questions
- How many mechanical & physical systems jobs are in Los Angeles?
- There are currently 1,104 open mechanical & physical systems roles in Los Angeles on BuildList, refreshed hourly from company career pages.
- What companies hire mechanical & physical systems talent in Los Angeles?
- The live list includes companies building the future across AI, defense, aerospace, robotics, energy, and more. Sort and filter the openings to compare employers, levels, sectors, and stages.
- Are there remote mechanical & physical systems jobs outside Los Angeles?
- Yes. BuildList has a dedicated remote mechanical & physical systems view for roles companies explicitly mark as remote. Regional restrictions can still apply.
- How do I apply for mechanical & physical systems jobs in Los Angeles?
- Every listing links straight to the company's own application page — BuildList doesn't sit between you and the employer, so there's no account or middleman.