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.

789 open roles · Updated Sep 21, 2026

789 jobs

Varda Space Thermal Hardware and Test Engineer II

El Segundo, CA

$120k–$153k / year

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

Hermeus Integration Engineer – Fluid & Propulsion Systems

Los Angeles, CA

$106k–$170k / year

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

SpaceX Structural Analyst (Raptor Combustion Devices)

Hawthorne, CA

$100k–$160k / year

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

Rocket Lab Turbomachinery Intern Spring 2027

Long Beach, CA

$58k / year

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

Relativity Space Vehicle Fluids Hardware Development Engineer I

Long Beach, CA

$90k–$136k / year

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

Blue Origin Mechanisms Engineer II — Opto-Mechanical Systems

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

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

Radiant Senior Thermal-Hydraulics Engineer

El Segundo, CA

$140k–$225k / year

Job type: Mechanical & Physical Systems
Seniority: Senior
Sector: Energy & Climate

Rivian Staff Motor Control Engineer

Carson, CA

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

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General Matter Fire Protection Engineer

Los Angeles, CA

$80k–$180k / year

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

Freeform Opto-Mechanical Build Engineer

Los Angeles, CA

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

Anduril Industries Stress Analysis Engineer, Maritime Structures

Santa Ana, CA

$129k–$171k / year

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

K2 Space Senior Satellite Mechanical Engineer (Structures)

Los Angeles, CA

$140k–$175k / year

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

Impulse Space Thermal Engineer

Redondo Beach, CA

$95k–$115k / year

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

Inversion Mechanical Engineer II

Playa Vista, CA

$106k–$150k / year

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

Varda Space Senior Thermal Analysis Engineer

El Segundo, CA

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

Hermeus Loads and Dynamics Engineer

Los Angeles, CA

$92k–$140k / year

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

SpaceX Summer 2027 Graduate Engineer Internship/Co-op

Bastrop, TX · Bloomfield, CT · Brownsville, TX · Cape Canaveral, FL · Hawthorne, CA · Irvine, CA · Long Beach, CA · McGregor, TX · Palo Alto, CA · Redmond, WA · Vandenberg, CA · Woodinville, WA

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

Rocket Lab Fluid Systems Intern Summer 2027

Long Beach, CA

$58k / year

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

Relativity Space Manager, Vehicle Fluids Product

Long Beach, CA

$160k–$240k / year

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

Blue Origin Structural Engineer III - Thermal Hardware - Lunar Permanence

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

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

Radiant Staff Loads & Dynamics Engineer

El Segundo, CA

$163k–$229k / year

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

Rivian Sr. Staff Attributes Engineer

Irvine, CA

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

General Matter Mechanical Engineer

Los Angeles, CA

$80k–$170k / year

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

Freeform Senior Materials Engineer (Metal 3D Printing)

Los Angeles, CA

$125k–$200k / year

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

Anduril Industries Mass Properties Engineer, Air Vehicles

Costa Mesa, CA

$129k–$171k / year

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

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Frequently asked questions

How many mechanical & physical systems jobs are in Los Angeles?: There are currently 789 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.