Jobs/Roles/Mechanical & Physical Systems

Mechanical & Physical Systems Jobs

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

2,529 open roles · Updated Sep 21, 2026

2,529 jobs

StarCloud Mechanical Engineer (Mechanisms)

Redmond, WA

$105k–$140k / year

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

Last Energy Lead Chemistry & Materials Engineer

Austin, TX

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

Kodiak AI Fleet Technician

Lancaster, TX

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

Rendezvous Robotics Spacecraft Structures Engineer (Bus Structures and Packaging)

Golden, CO

$140k–$170k / year

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

Pacific Fusion Fabrication Lead

San Leandro, CA

$176k–$220k / year

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

Specter Aerospace Aerospace Engineer I/II

Boston, MA

$94k–$130k / year

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

Fuse Cryogenic Systems Engineer

San Leandro, CA

$110k–$165k / year

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

Mach Industries May 2027 New Graduate Engineer, Vehicle Performance

Huntington Beach, CA

$115k–$130k / year

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

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Nudge Research Scientist, Rodent Neural Imaging

San Francisco, CA

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

Freeform Process Engineering Intern (Summer 2027)

Los Angeles, CA

$62k / year

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

Salient Motion Staff Responsible Engineer

Torrance, CA

$120k–$140k / year

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

GITAI Mechanical Engineering Intern / Co-op, Rocket Motors - Winter/Spring 2027

Los Angeles, CA

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

Exowatt Lead Optical Engineer (Austin, TX)

Austin, TX

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

Sila Nanotechnologies Director, R&D Equipment Engineering

Alameda, CA

$211k–$277k / year

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

Performance Drone Works Head of Mechanical Engineering

Denver, CO

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

AT Process Technologies Analytical Chemist

Waltham, MA

$120k–$145k / year

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

General Galactic Mechanical Engineer

El Segundo, CA

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

TerraFirma Electromechanical Engineer

Austin, TX

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

Physical Intelligence Mechanical Design Engineer

San Francisco, CA

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

Tiberius Aerospace CFD Engineer

Orange County, CA

$120k–$180k / year

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

Outpost Space Senior Structure Analysis Engineer

Los Angeles, CA

$195k–$220k / year

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

Gravitics Senior Propulsion Engineer

Seattle, WA

$135k–$160k / year

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

Furientis Development Engineer, Solid Rocket Motors

Los Angeles, CA

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

GrayMatter Robotics Robotics Engineer: Government Projects

Los Angeles, CA

$120k–$200k / year

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

Endurance Energy Super Engineer

Seattle, WA

$100k–$300k / year

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

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Frequently asked questions

How many mechanical & physical systems jobs are on BuildList?: There are currently 2,529 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.