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 21, 2026

788 jobs

SpaceX Mechanical Engineer (Starship)

Hawthorne, CA

$100k–$115k / year

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

Relativity Space Senior Structures Engineer

Long Beach, CA

$132k–$198k / year

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

Rocket Lab Mechanical Engineer II, Neutron Avionics

Long Beach, CA

$101k–$139k / year

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

Blue Origin Structural Design Engineer II - New Glenn

Seattle, WA · Space Coast, FL · Denver, CO · Los Angeles, CA

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

Anduril Industries Structures Engineer

Costa Mesa, CA

$129k–$171k / year

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

SpaceX Mechanical Engineer (Facilities)

Hawthorne, CA

$100k–$118k / year

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

Relativity Space Staff Structures Engineer

Long Beach, CA

$164k–$246k / year

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

Rocket Lab Stage Fluids Engineer II

Long Beach, CA

$101k–$151k / year

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

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Blue Origin Thermal Analyst, CFD - Lunar Permanence

Seattle, WA · Space Coast, FL · Huntsville, AL · Denver, CO · Los Angeles, CA

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

Anduril Industries Senior Mechanical Engineer, Components and Propulsion

Costa Mesa, CA

$146k–$194k / year

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

SpaceX Design Criteria Engineer (Starshield)

Hawthorne, CA

$100k–$115k / year

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

Relativity Space Lead, Launch Mechanical Engineering

Long Beach, CA

$128k–$192k / year

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

Rocket Lab Propulsion Engineer II, Engine Systems

Long Beach, CA

$101k–$151k / year

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

Blue Origin Summer 2027 Structural & Mechanical Engineering Internship - Undergraduate

Seattle, WA · Van Horn, TX · Space Coast, FL · Huntsville, AL · Denver, CO · Los Angeles, CA

$67k / year

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

Anduril Industries Senior Propulsion Engineer

Costa Mesa, CA

$166k–$220k / year

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

Relativity Space Principal Turbomachinery Test Responsible Engineer

Long Beach, CA

$185k–$277k / year

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

Rocket Lab Senior / Principal Propulsion Engineer

Long Beach, CA

$115k–$270k / year

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

Blue Origin Structures Design Engineer III - Lunar Permanence

Seattle, WA · Los Angeles, CA · Denver, CO

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

Anduril Industries Senior Propulsion & Hydrodynamics Engineer

Costa Mesa, CA

$166k–$220k / year

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

Relativity Space Staff Turbomachinery Test Responsible Engineer

Long Beach, CA

$164k–$246k / year

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

Rocket Lab Senior Combustion Devices Engineer II / Principal Combustion Devices Engineer

Long Beach, CA

$144k–$243k / year

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

Blue Origin Principal Structural Loads Engineer - New Glenn

Seattle, WA · Space Coast, FL · Huntsville, AL · Denver, CO · Los Angeles, CA

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

Anduril Industries Senior Structures Analyst, Omen

Costa Mesa, CA

$146k–$194k / year

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

Relativity Space Senior Turbomachinery Test Responsible Engineer

Long Beach, CA

$132k–$198k / year

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

Blue Origin Manager - Lunar Thermal Hardware Engineering

Seattle, WA · Los Angeles, CA · Denver, CO

Job type: Mechanical & Physical Systems
Seniority: Manager
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.