Jobs/Roles/Mechanical & Physical Systems

Mechanical & Physical Systems Jobs

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

2,578 open roles · Updated Sep 23, 2026

2,578 jobs

Zipline Maintenance Tool Engineering Intern (Summer 2027)

Esparto, CA

$77k / year

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

CesiumAstro Staff Mechanical Engineer

Westminster, CO

$133k–$161k / year

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

Cowboy Space Corporation Fluids Engineer - Vehicle Valves, Ducts, & Small Tubing

Kent, WA · Washington, D.C.

$130k–$195k / year

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

Ursa Major Structural Analysis Engineer II, Solid Missile Systems

Berthoud, CO

$91k–$115k / year

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

Harmattan AI Senior Mechanical Engineer – Quadcopter Systems

Switzerland

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

Fluidstack Mechanical Engineer, R&D Team Lead

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

$194k–$237k / year

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

Commonwealth Fusion Senior Mechanical Engineer - Assembly Equipment

Devens, MA

$110k–$185k / year

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

Varda Space Manager, Crystallization Science

El Segundo, CA

$160k–$190k / year

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

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Inversion Senior Mechanical Engineer

Playa Vista, CA

$137k–$193k / year

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

SpaceXAI Operations Engineer (Construction & Site Efficiency)

Southaven, MS · Memphis, TN

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

Hermeus F100 MRO

Los Angeles, CA · Atlanta, GA · Jacksonville, FL

$92k–$187k / year

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

Aalo Atomics Senior Materials Engineer – Testing & Structural Materials

Austin, TX

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

Firefly Aerospace Composite M&P Engineer II

Briggs, TX

Job type: Mechanical & Physical Systems
Seniority: Mid-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 Senior Mechanisms Engineer

Long Beach, CA

$132k–$198k / year

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

Rocket Lab Spacecraft Mechanical Engineer II

Long Beach, CA

$101k–$126k / year

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

Nvidia Senior Packaging Technical Engineer - Hardware

India

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

Oklo Mechanical Engineer - Fuel Recycling

Remote · Santa Clara, CA

$120k–$170k / year

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

Blue Origin Mk1 Senior Passive Thermal Hardware Engineer

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

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

Fervo Energy Process & Mechanical Engineering Internship

Houston, TX

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

Rivian Field Service Technician, Nightshift - Sparks, NV

Sparks, NV

$55k–$72k / year

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

Archer Senior Structural Analyst

San Jose, CA

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

Neuralink Mechanical Engineer, Implant

Austin, TX

$120k–$224k / year

Job type: Mechanical & Physical Systems
Seniority: Senior
Sector: Bio & Health

General Matter Civil Engineer PE - Paducah

Paducah, KY

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

Radiant Senior Nuclear Thermal-Hydraulics Engineer

El Segundo, CA

$140k–$197k / year

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

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Frequently asked questions

How many mechanical & physical systems jobs are on BuildList?: There are currently 2,578 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.
How do I apply for mechanical & physical systems jobs?: 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.