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

Saronic Civil/Site Engineer – Infrastructure

Austin, TX

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

Castelion Senior Mechanisms Engineer

Rio Rancho, NM

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

Zipline Long Range Platform Hardware Engineering Intern (Summer 2027)

South San Francisco, CA

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

CesiumAstro Mechanical Engineer II

Austin, TX

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

Cowboy Space Corporation Senior In-Space Propulsion Engineer

Kent, WA · Washington, D.C.

$140k–$205k / year

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

Harmattan AI Field Deployment Engineer

Morocco

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

Fluidstack Fire Protection Engineer, Capacity Delivery

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

$164k–$206k / year

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

Varda Space Senior Thermal Analysis Engineer

El Segundo, CA

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

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Inversion Staff Aerothermal CFD Engineer

Playa Vista, CA

$161k–$221k / year

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

Firefly Aerospace Propulsion Engineer II - Spacecraft Engine Team

Cedar Park, TX

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

SpaceX Materials Engineer, Metals (Starlink)

Redmond, WA

$100k–$165k / year

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

Relativity Space Vehicle Fluid Systems Engineer II

Long Beach, CA

$104k–$156k / year

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

Rocket Lab Structural Analysis Intern Spring 2027

Long Beach, CA

$58k / year

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

Nvidia Senior Thermal Solutions Design Engineer

Santa Clara, CA

$168k–$311k / year

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

Oklo Process Engineer - Fuel Recycling

Remote · Santa Clara, CA

$100k–$160k / year

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

Blue Origin Principal Fluids Systems Valve Design Engineer - New Glenn

Seattle, WA

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

Fervo Energy Senior Drilling Engineer

Houston, TX

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

Rivian Sr. Technical Program Manager, Battery Pack and Cell

Tustin, CA

$122k–$152k / year

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

Archer Manager, Motor Mechanical

San Jose, CA

$175k–$225k / year

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

General Matter Nuclear Criticality Safety (NCS) Engineer

Los Angeles, CA

$80k–$170k / year

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

Radiant Nuclear Engineer, Core Physics

El Segundo, CA

$107k–$146k / year

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

Meta Research Scientist, Optical Systems

Redmond, WA · Pasadena, CA

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

Sierra Space Mechanical Engineer III - Thermal Systems

Centennial, CO · Louisville, CO

$111k–$152k / year

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

The Boring Company Heavy Equipment Mechanic

Bastrop, TX

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

Re:Build Manufacturing Experienced Stress Analysis Engineer

Englewood, CO

$95k–$230k / year

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

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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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