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.

788 open roles · Updated Sep 20, 2026

788 jobs

Furientis Mechanical Engineer

Los Angeles, CA

Job type: Mechanical & Physical Systems
Seniority: Senior
Sector: Defense

Icarus Senior Mechanical Engineer

El Segundo, CA

$120k–$220k / year

Job type: Mechanical & Physical Systems
Seniority: Senior
Sector: Aerospace

Mesh Optical Associate Mechanical Engineer (Intern / Co-Op)

Gardena, CA

$54k–$79k / year

Job type: Mechanical & Physical Systems
Seniority: Intern
Sector: Compute & Semiconductors

Starpath Senior/Principal Mechanical Engineer

Hawthorne, CA

$140k–$200k / year

Job type: Mechanical & Physical Systems
Seniority: Senior
Sector: Aerospace

Endeavor Optical Networks Mechanical Engineer - Mechanisms & Structures

Culver City, CA

Job type: Mechanical & Physical Systems
Seniority: Mid-Level
Sector: Aerospace

Arc Boats Senior Mechanical Engineer

Torrance, CA

$150k–$180k / year

Job type: Mechanical & Physical Systems
Seniority: Senior
Sector: Transportation

Hadrian Battery Pack Engineering Lead

Los Angeles, CA

$220k–$280k / year

Job type: Mechanical & Physical Systems
Seniority: Manager
Sector: Manufacturing

Anduril Industries Senior Mechanical Engineer, Test Fixtures

Costa Mesa, CA

$146k–$194k / year

Job type: Mechanical & Physical Systems
Seniority: Senior
Sector: Defense

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K2 Space Senior Thermal Analyst

Los Angeles, CA

$140k–$230k / year

Job type: Mechanical & Physical Systems
Seniority: Senior
Sector: Aerospace

True Anomaly Structural Integrity Lead, Space Based Interceptor

Denver, CO · Long Beach, CA

Job type: Mechanical & Physical Systems
Seniority: Manager
Sector: Aerospace

Castelion Senior Propulsion Engineer

Torrance, CA

Job type: Mechanical & Physical Systems
Seniority: Senior
Sector: Defense

Impulse Space Propulsion Test Engineer

Mojave, CA

$110k–$140k / year

Job type: Mechanical & Physical Systems
Seniority: Mid-Level
Sector: Aerospace

Neros Autonomy Mechatronics Engineer (Hardware & Test)

Torrance, CA

$121k–$170k / year

Job type: Mechanical & Physical Systems
Seniority: Mid-Level
Sector: Defense

CesiumAstro Senior Propulsion Engineer I

El Segundo, CA

$140k–$168k / year

Job type: Mechanical & Physical Systems
Seniority: Senior
Sector: Aerospace

Harbinger Chassis Engineer, Suspension

Garden Grove, CA

$120k–$140k / year

Job type: Mechanical & Physical Systems
Seniority: Senior
Sector: Transportation

Singularity Senior Mechanical Design Engineer

Gardena, CA

Job type: Mechanical & Physical Systems
Seniority: Senior
Sector: Defense

Field AI Mechanical Engineer, Autonomous Vehicles - Federal

Irvine, CA

$100k–$240k / year

Job type: Mechanical & Physical Systems
Seniority: Mid-Level
Sector: Robotics

CHAOS Industries Senior Staff Mechanical Engineer

El Segundo, CA

Job type: Mechanical & Physical Systems
Seniority: Staff / Principal
Sector: Defense

Fluidstack Structural Engineer, Modular R&D

Austin, TX · New York, NY · San Francisco, CA · Los Angeles, CA · Seattle, WA

$164k–$206k / year

Job type: Mechanical & Physical Systems
Seniority: Mid-Level
Sector: Compute & Semiconductors

Inversion Senior Mechatronics Engineer

Playa Vista, CA

Job type: Mechanical & Physical Systems
Seniority: Senior
Sector: Aerospace

Varda Space Principal Mechanisms Engineer - Payloads

El Segundo, CA

$182k–$232k / year

Job type: Mechanical & Physical Systems
Seniority: Staff / Principal
Sector: Aerospace

Hermeus Mechanical Engineer

Los Angeles, CA

$92k–$140k / year

Job type: Mechanical & Physical Systems
Seniority: Entry-Level
Sector: Aerospace

SpaceX New Graduate Engineer, Starship Components

Hawthorne, CA

$100k–$160k / year

Job type: Mechanical & Physical Systems
Seniority: Entry-Level
Sector: Aerospace

Relativity Space Staff Launch Structural Engineer

Long Beach, CA

$150k–$226k / year

Job type: Mechanical & Physical Systems
Seniority: Staff / Principal
Sector: Aerospace

Rocket Lab Mechanical Engineering Intern Spring 2027

Long Beach, CA

$58k / year

Job type: Mechanical & Physical Systems
Seniority: Intern
Sector: Aerospace

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Frequently asked questions

How many mechanical & physical systems jobs are in Los Angeles?: There are currently 788 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.