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 Sr. Thermal Engineer, Thermal & Fluid Analysis (Starship)

Hawthorne, CA

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

Rocket Lab Senior Spacecraft Structural Analysis Engineer I - TS/SCI Clearance

Long Beach, CA

$115k–$158k / year

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

Relativity Space Hardware Development Engineer II

Long Beach, CA

$104k–$156k / year

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

Blue Origin 2026 Intern Conversion - Thermal Engineer I

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

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

Anduril Industries Senior Materials and Process Engineer, Rocket Motor Systems

Costa Mesa, CA

$146k–$194k / year

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

SpaceX Mechanical Engineer (Starshield)

Hawthorne, CA

$100k–$118k / year

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

Rocket Lab Senior Mechanical Engineer II - Secret Clearance

Long Beach, CA

$132k–$198k / year

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

Relativity Space Senior Structures Responsible Engineer

Long Beach, CA

$132k–$198k / year

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

Weekly jobs, picked for you.

Weekly jobs and company news, tailored to your preferences. Confirm your email to subscribe.

Blue Origin Structural Loads Engineer III - New Glenn

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

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

Anduril Industries Senior Thermal Engineer

Costa Mesa, CA

$146k–$194k / year

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

SpaceX Sr. Mechanical Engineer (Starship)

Hawthorne, CA

$130k–$180k / year

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

Rocket Lab Spacecraft Thermal Engineer II

Long Beach, CA

$101k–$126k / year

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

Relativity Space Senior COPV Engineer

Long Beach, CA

$132k–$198k / year

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

Blue Origin Sr Liquid Systems Responsible Engineer

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

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

Anduril Industries Senior Thermal Engineer

Costa Mesa, CA

$146k–$194k / year

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

SpaceX Loads & Dynamics Engineer (Starshield)

Hawthorne, CA

$100k–$115k / year

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

Rocket Lab Manager, Mechanical Engineering

Pasadena, CA

$142k–$213k / year

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

Relativity Space Hardware Development Engineer I

Long Beach, CA

$90k–$136k / year

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

Blue Origin Fluid Systems Design Engineer II

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

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

Anduril Industries Thermal Engineer

Costa Mesa, CA

$129k–$171k / year

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

SpaceX New Graduate Engineer, Propulsion (Raptor)

Hawthorne, CA

$100k–$115k / year

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

Rocket Lab Senior Optomechanical Engineer I/II

Pasadena, CA

$125k–$215k / year

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

Relativity Space Senior Dynamic Environments Engineer

Long Beach, CA

$132k–$198k / year

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

Blue Origin Manager – Zero-gravity Propellant Management

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

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

Anduril Industries Mechanical Engineer, Maritime

Costa Mesa, CA

$129k–$171k / year

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

Related searches

All Mechanical & Physical Systems jobs All jobs in Los Angeles Mechanical & Physical Systems salaries Mechanical & Physical Systems in Seattle Mechanical & Physical Systems in SF Bay Area Mechanical & Physical Systems in Denver Mechanical & Physical Systems in Austin Mechanical & Physical Systems in Orlando Software & Data in Los Angeles Manufacturing & Production in Los Angeles Electrical & Firmware in Los Angeles Test, Quality, & Reliability in Los Angeles Product, Programs, & Systems in Los Angeles Supply Chain & Procurement in Los Angeles

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.