Jobs/Roles/Mechanical & Physical Systems

Mechanical & Physical Systems Jobs

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

2,598 open roles · Updated Sep 24, 2026

2,598 jobs

General Matter Fire Protection Engineer

Los Angeles, CA

$80k–$180k / year

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

Radiant Nuclear Engineer, Sensors

El Segundo, CA

$107k–$146k / year

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

Meta Thermal Design Engineer

Sunnyvale, CA

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

Sierra Space Aerospace Engineer II

Louisville, CO

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

The Boring Company Senior Civil Engineer

Las Vegas, NV · Bastrop, TX

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

Re:Build Manufacturing Mechanical Engineer

Wilmington, MA

$95k–$120k / year

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

Freeform Process Engineer (Advanced R&D)

Los Angeles, CA

$95k–$140k / year

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

Impulse Space Avionics Mechanical Engineering Intern (Summer 2027)

Redondo Beach, CA

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

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Muon Space Senior Optomechanical Engineer

Mountain View, CA

$177k–$244k / year

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

Anduril Industries Chief Engineer, Navy Airpower

Costa Mesa, CA

$253k–$336k / year

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

Shield AI Engineer II, Mechanical (R5310)

Dallas, TX

$90k–$135k / year

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

Saronic Marine Designer/Drafter

New Orleans, LA

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

Castelion Senior Propulsion Engineer (Rocket Motor Soft Goods)

Rio Rancho, NM

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

Zipline Senior / Staff Mechanical Design Engineer, Battery and Power Electronics

South San Francisco, CA

$160k–$240k / year

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

CesiumAstro Senior Thermal Engineer

Westminster, CO

$133k–$161k / year

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

Cowboy Space Corporation Thermal Engineer

San Carlos, CA

$150k–$200k / year

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

Harmattan AI Mechanical Engineer

Switzerland

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

Varda Space Senior Aerodynamics and Flight Mechanics Engineer

El Segundo, CA

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

Inversion Staff Optical Engineer

Playa Vista, CA

$161k–$221k / year

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

Firefly Aerospace Analysis Engineer II (Spacecraft)

Cedar Park, TX

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

SpaceX Recovery Engineer (F9 Booster & Fairings)

Long Beach, CA

$100k–$160k / year

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

Relativity Space Manager, Vehicle Fluids Analysis

Long Beach, CA

$160k–$240k / year

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

Rocket Lab Structural Analysis Intern Summer 2027

Long Beach, CA

$58k / year

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

Nvidia Senior Opto-Mechanical Engineer

Israel

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

Oklo Mechanical Design Engineer - Fuel Recycling

Santa Clara, CA

$80k–$155k / year

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

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How many mechanical & physical systems jobs are on BuildList?: There are currently 2,598 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.