Jobs/Roles/Mechanical & Physical Systems

Mechanical & Physical Systems Jobs

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

2,558 open roles · Updated Sep 21, 2026

2,558 jobs

Impulse Space Propulsion Test Engineer

Mojave, CA

$110k–$140k / year

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

Neros Autonomy Mechatronics Engineer (Hardware & Test)

Torrance, CA

$121k–$170k / year

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

Valar Atomics Chemical Vapor Deposition Engineer (TRISO)

Orangeville, UT

$90k–$220k / year

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

Venus Aerospace Senior Test Operator

Houston, TX

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

Firestorm Systems Engineering Opportunities, xCell

San Diego, CA

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

Zipline Concept and Architecture Engineering Contractor

South San Francisco, CA

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

CesiumAstro Mechanical Engineer I

El Segundo, CA

$86k–$101k / year

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

Harbinger Chassis Engineer, Suspension

Garden Grove, CA

$120k–$140k / year

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

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Ursa Major Structural Analyst II

Berthoud, CO

$89k–$112k / year

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

Cowboy Space Corporation Mechanism Engineer Level 1

Kent, WA · Washington, D.C.

$74k–$114k / year

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

Singularity Sr Analysis Mechanical Engineer (Thermal, Structural)

Gardena, CA

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

Boom Supersonic Turbine Aerodynamics Engineer

Centennial, CO

$107k–$144k / year

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

Field AI Mechanical Engineer, Robotics Hardware

Irvine, CA

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

Allen Control Systems Mechanical Engineer, Staff

Austin, TX

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

Harmattan AI Senior Team Lead, Launcher & Ground Segment

Morocco

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

CHAOS Industries Senior Staff Mechanical Engineer

El Segundo, CA

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

EnduroSat Spacecraft Thermal Engineer

Bulgaria

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

Fluidstack Designer/Detailer (Mechanical/Structural), Modular 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 Structural Mechanical Engineer

Devens, MA

$110k–$185k / year

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

Nebius Mechanical Design Engineer

Remote

$185k–$225k / year

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

Slate Auto Plant Vehicle Engineer, Seat Complete & Restraints

Warsaw, IN

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

Varda Space Principal Mechanisms Engineer - Payloads

El Segundo, CA

$182k–$232k / year

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

Inversion Senior Mechatronics Engineer

Playa Vista, CA

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

SpaceXAI Director, Memphis Power Plant Operations

Southaven, MS

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

Antares Principal Engineer, Structural Integrity

Los Angeles, CA

$190k–$250k / year

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

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How many mechanical & physical systems jobs are on BuildList?: There are currently 2,558 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.