Jobs/Roles/Mechanical & Physical Systems

Mechanical & Physical Systems Jobs

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

2,514 open roles · Updated Sep 20, 2026

2,514 jobs

Umbra Senior/Staff Mechanical Engineer

Santa Barbara, CA

$180k–$220k / year

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

Dominion Dynamics Mechanical Engineer - Thermal Design

Canada

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

Wardstone Engineering Intern - Space and Missile Defense

Los Angeles, CA

$72k–$120k / year

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

Dawn Aerospace Aircraft Maintenance Technician

New Zealand

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

MidJourney Hardware Physicist

San Francisco, CA

Job type: Mechanical & Physical Systems
Seniority: Senior
Sector: AI Research

Arbor Energy Sr. Thermodynamics Performance Engineer

El Segundo, CA

$165k–$180k / year

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

GrayMatter Robotics Sr. Robotics Design Engineer: Government Projects

Los Angeles, CA

$140k–$175k / year

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

Intramotev Engineering Data Contractor (Autodesk Vault)

St. Louis, MO

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

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Parallel Systems Senior Mechanical Engineer

Los Angeles, CA

$150k–$183k / year

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

Furientis Senior Opto-Mechanical Engineer

Los Angeles, CA

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

RED 6 Principal Mechanical Engineer – Structural and Vibration Analyst

Denver, CO

$170k–$200k / year

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

Gravitics Senior Thermal Engineer

Seattle, WA · Denver, CO

$135k–$170k / year

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

Urban Sky Mechanical Engineer - Stratospheric Balloons

Denver, CO

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

Endurance Energy Senior/Principal Turbomachinery Engineer

Seattle, WA

$175k–$275k / year

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

Laminar Forward Deployed Engineer (CPG)- Hiring multiple

Somerville, MA

$82k–$101k / year

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

Ephemeris Net Staff Optical Communications Engineer

El Segundo, CA · Oakland, CA

$200k–$250k / year

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

xLight Senior Structural Engineer

San Francisco, CA

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

Pyka Mechanical Engineering Internship - Winter/Spring 2027 (Dropship, Early Interest)

Alameda, CA

$73k–$83k / year

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

Specter Mechanical Engineer

San Francisco, CA

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

TerraFirma Senior Civil Engineer

Austin, TX

Job type: Mechanical & Physical Systems
Seniority: Senior
Sector: Construction & Housing

Merge Labs Scientist - In Vivo Operations

San Francisco, CA

$120k–$165k / year

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

Charm Industrial Staff Project Engineer (Mechanical & Civil)

Fort Lupton, CO

$118k–$177k / year

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

Pivot Bio Research Associate II, Downstream

Creve Coeur, MO

$64k–$80k / year

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

AstroForge Thermal Engineer

Seal Beach, CA

$125k–$211k / year

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

Sanctuary AI Head of Hardware

Canada

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

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How many mechanical & physical systems jobs are on BuildList?: There are currently 2,514 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.