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

SpaceX Materials Engineer, Welding (Starship Components)

Hawthorne, CA

$100k–$140k / year

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

Rocket Lab Spacecraft Propulsion Systems Engineer II

Long Beach, CA

$100k–$150k / year

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

Relativity Space Lead, Engine Assembly Design

Long Beach, CA

$136k–$204k / year

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

Blue Origin Sr Dynamic Environments Engineer - New Glenn

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

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

Radiant Senior Mechanical Engineer, Fluid Systems

El Segundo, CA

$158k–$219k / year

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

Anduril Industries Staff Mechanical Engineer, Advanced Targeting & Sensing Systems

Costa Mesa, CA

$191k–$222k / year

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

Impulse Space Propulsion Engineering Intern (Summer 2027)

Redondo Beach, CA

$62k / year

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

SpaceX Commercial Plumber - 2nd Shift (Service & Repair)

Hawthorne, CA

$85k–$106k / year

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

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Rocket Lab Senior Spacecraft Propulsion Components Engineer I

Long Beach, CA

$115k–$173k / year

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

Relativity Space Staff Vehicle Fluid Systems Engineer (Product)

Long Beach, CA

$164k–$226k / year

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

Blue Origin Thermal Systems Analysis Lead - Lunar Permanence

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

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

Radiant Principal Turbomachinery Engineer

El Segundo, CA

$201k–$314k / year

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

Anduril Industries Senior Structural Analysis Engineer

Costa Mesa, CA

$146k–$194k / year

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

Impulse Space Spacecraft Integration Engineer

Redondo Beach, CA

$105k–$165k / year

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

SpaceX Mechanical Design Engineer (Starship Components)

Hawthorne, CA

$100k–$118k / year

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

Rocket Lab Senior Spacecraft Propulsion Systems Engineer I - Secret Clearance

Long Beach, CA

$115k–$173k / year

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

Relativity Space Senior Opto-Mechanical Engineer

Long Beach, CA

$142k–$214k / year

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

Blue Origin Liquid System Responsible Engineer III — Cryogenic Fluids CAD & Design

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

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

Radiant Build Engineer, Turbomachinery

El Segundo, CA

$158k–$219k / year

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

Anduril Industries Structural Analysis Engineer

Costa Mesa, CA

$129k–$171k / year

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

Impulse Space Senior Propulsion Analyst (Fluids)

Redondo Beach, CA

$135k–$185k / year

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

SpaceX Sr. Propulsion Fluids Analyst (Raptor Systems Engineering)

Hawthorne, CA

$135k–$190k / year

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

Rocket Lab Senior Mechanical Engineer II

Pasadena, CA

$132k–$198k / year

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

Relativity Space Vehicle Structures Engineer II

Long Beach, CA

$104k–$156k / year

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

Blue Origin Sr. Test Engineer - Spacecraft Integration (Space Resources)

Los Angeles, CA

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

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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.