Jobs/Roles/Mechanical & Physical Systems

Mechanical & Physical Systems Jobs

Mechanical, aerospace, and physical-systems engineering roles at hard-tech companies.

2,597 open roles · Updated Sep 24, 2026

2,597 jobs

Impulse Space Thermal Engineering Intern (Summer 2027)

Redondo Beach, CA

$62k / year

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

Panthalassa Lead Mechanical Engineer, Structures

Portland, OR

$235k–$285k / year

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

Stoke Space Structures Design Engineer

Kent, WA · Washington, D.C.

$110k–$148k / year

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

Muon Space Manager, Instrument Design

Mountain View, CA

$197k–$218k / year

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

Anduril Industries Mechanical Engineer, Manufacturing Automation

Costa Mesa, CA

$115k–$171k / year

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

Isar Aerospace (Senior) Design Engineer (m/f/d)

Germany

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

Shield AI Aerodynamics & Performance Engineer (R5732)

Dallas, TX

$115k–$175k / year

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

K2 Space Senior Mechanisms Engineer

Los Angeles, CA

$140k–$175k / year

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

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Saronic Senior Naval Architect

Austin, TX

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

Castelion Senior Thermal Engineer

Torrance, CA

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

Zipline Mechanical Engineer Intern (Spring 2027)

South San Francisco, CA

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

CesiumAstro Senior Mechanical Engineer

Austin, TX

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

Cowboy Space Corporation Senior Fluids Engineer

Kent, WA · Washington, D.C.

$160k–$185k / year

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

Harmattan AI Aerothermal Engineer

Switzerland

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

Fluidstack Mechanical Engineer, R&D

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

$208k–$263k / year

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

Commonwealth Fusion Senior Field Mechanical Engineer - Assembly

Devens, MA

$110k–$185k / year

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

Varda Space Senior Propulsion Engineer - Hardware and Bus Systems

El Segundo, CA

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

Inversion Senior Mechanical Engineer (Accurate Landing)

Playa Vista, CA

$137k–$193k / year

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

Hermeus Integration Engineer – Fluid & Propulsion Systems

Los Angeles, CA

$106k–$170k / year

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

Firefly Aerospace Propulsion Engineer I (Spacecraft Fluids)

Cedar Park, TX

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

SpaceX Dynamics Engineer (Falcon & Dragon)

Hawthorne, CA

$100k–$130k / year

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

Rocket Lab Junior Development Engineer - Neutron

New Zealand

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

Nvidia Mechanical Product Engineer

India

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

Oklo Process Engineer

Remote · Santa Clara, CA

$80k–$155k / year

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

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How many mechanical & physical systems jobs are on BuildList?: There are currently 2,597 open mechanical & physical systems roles listed on BuildList, refreshed hourly straight from company career pages.
What kinds of companies are hiring mechanical & physical systems?: Ambitious, fast-growing companies building the future — across AI, defense, aerospace, robotics, energy, and more. You can filter the list by sector, company stage, experience level, and location.
Are there remote mechanical & physical systems jobs?: Yes. Use the location filter, or open the remote view for this role to see only fully-remote mechanical & physical systems openings.
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