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409 jobs

Relativity Space
Launch Mechanical Engineer II
Cape Canaveral, Florida
Experience: 2 years
Posted: 2 days ago

201-500 employees
Y Combinator $650M Series E in 2021 $4.2B valuation

What they do:
Building humanity’s multiplanetary future, starting with Terran 1 – the world’s first entirely 3D printed rocket.
Hardware Space 3DTech

Quick facts:
πŸ“HQ: Los Angeles, California, USA
201-500 employees Founded: 2016

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Anduril Industries
Senior Mechanical Engineer
Boulder, Colorado, United States
Experience: 5 years
Posted: 2 days ago

501-1000 employees
Andreessen Horowitz Founders Fund $2B Series G in 2025 $30.0B valuation

What they do:
Build defense technology for military agencies and border surveillance
Hardware Space Military

Quick facts:
πŸ“HQ: Los Angeles, California, USA
501-1000 employees Founded: 2017

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Shield AI
Mechanical Engineer II (R4489)
Dallas, Texas / San Diego, California
Experience: 2+ year
Posted: 3 days ago

201-500 employees
Andreessen Horowitz $240M Series F in 2025 $5.3B valuation

What they do:
Develop AI products for the protection of service members and civilians
Robotics Hardware Artificial Intelligence

Quick facts:
πŸ“HQ: San Diego, California, USA
201-500 employees Founded: 2015

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Flock Safety
Staff Mechanical Engineer, Aviation
Atlanta, GA
Experience: Not listed
Posted: 3 days ago

201-500 employees
Andreessen Horowitz Y Combinator $275M Series F in 2025 $7.5B valuation

What they do:
Flock Safety helps communities and law enforcement in 1200 cities to eliminate crime.
Public Safety Government

Quick facts:
πŸ“HQ: Atlanta, Georgia, USA
201-500 employees Founded: 2017

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Commonwealth Fusion
Intern - Mechanical Engineer - Fall Co-op 2026
Devens, MA
Experience: 21 years
Posted: 3 days ago

101-200 employees
Khosla Ventures $2B Series B in 2021

What they do:
Building the path to clean, carbon-free, limitless energy
Sustainability Renewable Energies

Quick facts:
πŸ“HQ: Boston, Massachusetts, USA
101-200 employees Founded: 2017

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Relativity Space
Mechanical Engineer II
Stennis Space Center, Mississippi
Experience: 2 years
Posted: 4 days ago

201-500 employees
Y Combinator $650M Series E in 2021 $4.2B valuation

What they do:
Building humanity’s multiplanetary future, starting with Terran 1 – the world’s first entirely 3D printed rocket.
Hardware Space 3DTech

Quick facts:
πŸ“HQ: Los Angeles, California, USA
201-500 employees Founded: 2016

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Commonwealth Fusion
Mechanical Engineer - Radiological Tooling - Contract
Devens, MA
Experience: 2+ years
Posted: 4 days ago

101-200 employees
Khosla Ventures $2B Series B in 2021

What they do:
Building the path to clean, carbon-free, limitless energy
Sustainability Renewable Energies

Quick facts:
πŸ“HQ: Boston, Massachusetts, USA
101-200 employees Founded: 2017

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Eight Sleep
Mechanical Engineering Manager
San Francisco
Experience: 8+ years
Posted: 4 days ago

51-100 employees
Khosla Ventures Founders Fund Y Combinator $86M Series C in 2021 $500M valuation

What they do:
Eight Sleep is a sleep fitness company that sells high-tech mattresses with adjustable temperature controls and sleep tracking.
Hardware Sleep

Quick facts:
πŸ“HQ: New York, New York, USA
51-100 employees Founded: 2014

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Anduril Industries
Senior Mechanical Engineer, Manufacturing Automation
Costa Mesa, California, United States
Experience: 4+ years
Posted: 6 days ago

501-1000 employees
Andreessen Horowitz Founders Fund $2B Series G in 2025 $30.0B valuation

What they do:
Build defense technology for military agencies and border surveillance
Hardware Space Military

Quick facts:
πŸ“HQ: Los Angeles, California, USA
501-1000 employees Founded: 2017

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AEye
Senior Mechanical Engineer
Pleasanton, CA
Experience: 7+ years
Posted: 11 days ago

101-200 employees
Kleiner Perkins Post-IPO $487M valuation

What they do:
AEye develops advanced vision hardware, software and algorithms that act as the eyes and visual cortex of autonomous vehicles.
Artificial Intelligence Autonomous Vehicles Hardware Data Science

Quick facts:
πŸ“HQ: San Francisco Bay Area, California, USA
101-200 employees Founded: 2013

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Synthego
Operations Mechanical Engineering Intern
Redwood City, CA
Experience: 1 year
Posted: 11 days ago

201-500 employees
Founders Fund $259M Series D in 2020

What they do:
Synthego is a genome engineering company that enables access to CRISPR to accelerate life science R&D.
Hardware Biotech

Quick facts:
πŸ“HQ: San Francisco Bay Area, California, USA
201-500 employees Founded: 2012

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Anduril Industries
Staff Mechanical Engineer
Dublin, Dublin, Ireland
Experience: 5 years
Posted: 11 days ago

501-1000 employees
Andreessen Horowitz Founders Fund $2B Series G in 2025 $30.0B valuation

What they do:
Build defense technology for military agencies and border surveillance
Hardware Space Military

Quick facts:
πŸ“HQ: Los Angeles, California, USA
501-1000 employees Founded: 2017

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