Jobs/Roles/Mechanical & Physical Systems

Mechanical & Physical Systems Jobs

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

2,538 open roles · Updated Sep 22, 2026

2,538 jobs

Last Energy Senior Mechanical Engineer

Austin, TX

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

Rendezvous Robotics Mechanical Engineering Intern (Spring 2027)

Golden, CO

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

Pacific Fusion Senior Mechanical Engineer - Test Infrastructure

San Leandro, CA

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

Specter Aerospace Computational Design Engineer Co-Op - Spring 2027

Peabody, MA

$48k–$62k / year

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

Albuquerque, NM

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

Mach Industries Senior Conceptual Design Engineer, Advanced Concepts

Huntington Beach, CA

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

Nudge Ultrasound Engineer

San Francisco, CA

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

Freeform Materials Engineering Intern (Summer 2027)

Los Angeles, CA

$62k / year

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

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Exowatt Lead Thermal Design Engineer (Austin, TX)

Austin, TX

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

Salient Motion Mechanical Engineer

Torrance, CA

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

GITAI Mechanical Engineer, Interceptor

Los Angeles, CA

$100k–$155k / year

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

Sila Nanotechnologies Staff Battery Engineer, Battery Performance

Alameda, CA

$151k–$191k / year

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

AT Process Technologies Mechanical Engineer

Waltham, MA · Berwick, ME

$120k–$180k / year

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

General Galactic Structures Engineer

El Segundo, CA

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

Tiberius Aerospace CFD Engineer

Tucson, AZ

$100k–$150k / year

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

Gravitics Mechanical Engineer, Structures

Seattle, WA

$110k–$140k / year

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

Furientis Energetic Materials Engineer, Solid Propellant

Los Angeles, CA

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

Merge Labs Mechanical Engineer

San Francisco, CA

$225k–$260k / year

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

Starpath Thin-Film PV Materials Scientist - Space Solar

Hawthorne, CA

$125k–$200k / year

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

Hades Mining (Senior) R&D Engineer Thermofluids (m/w/d)

Germany

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

Arc Boats Mechanical Engineer

Torrance, CA

$105k–$150k / year

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

Astranis Mechanical Engineer

San Francisco, CA

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

Isomorphic Labs Head of Medicinal Chemistry, Drug Design, London

United Kingdom

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

Fuse Energy Renewables Lead

United Kingdom

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

Gilmour Space Propulsion Engineer II

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

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Frequently asked questions

How many mechanical & physical systems jobs are on BuildList?: There are currently 2,538 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.